Date   

Re: Pluto SRD and GNURadio - help!

Charles Brain <chbrain@...>
 

Hi Jules,

You are not alone a lot of people at GRCon17 were having this problem.
I managed to get it to work by installing the latest gr-iio from source.

You can also use the FMCOMMS source/sink and set the ip address to
192.168.2.1 However Analog have changed the interface from the Radio
old version needed short to float conversion followed by float to complex

The new version comes out as complex float so no change is required.

My description is probably as clear as mud but it does work!

- Charles G4GUO


Re: DIGIFEST!

Conrad, PA5Y
 

Bloody Sport Radio! Bah Humbug.

On 2017-10-19 14:21, 'Martin A Hall' gorrell77@... [ukmicrowaves] wrote:
Thank you, Andy, at first sight that looks OK – I agree that
abbreviated call-signs are fine. I appreciate you going to the
trouble of producing this, that’s just what I was looking for –
it’s good to have an expert input. I only took the opportunity to
raise this again because Sam had mentioned contesting. The last time
I did the same with this group the responses didn’t provide a
workable solution, otherwise it would have already been included in
the Guidelines.
I’ll try out your protocol and see if it works in a real QSO, using
WSJT-X. If it does, I’ll recommend to the VHF CC that it goes into
the Guidelines, and I will buy you several pints. If not I’ll let
you know.
I gave a link to the Guidelines in my message of 11:42 earlier today
(see below), so you must have missed it. They have been publicised by
the RSGB in the Sport Radio column of RadCom, and within the VHF CC
web pages, but if you aren’t interested in contesting it’s no
surprise you haven’t come across them. Unfortunately in the far
north of the UK there is little 23cm activity outside the UKACs and
the UKuG Low Band contests at the times I can operate, so contests are
the main source of my QSOs. Even the recent weekend 1.3 GHz Trophy
and 432MHz up contests only produced 4 contacts on 23cm in 24 hours
(all SSB), a dismal and disappointing level of activity, since there
were loads of planes about that would have given me contacts with the
many stations in the north of England that have 23cm capability.
73, Martin
GM8IEM – IO78HF
FROM: ukmicrowaves@...
[mailto:ukmicrowaves@...]
SENT: 19 October 2017 12:31
TO: ukmicrowaves@...
SUBJECT: Re: [ukmicrowaves] DIGIFEST!
What RSGB MGM Contest guidelines ? First I've heard of them - but
not personally having much interest in contests at all, no doubt
missed a box ticking exercise ...
I thought the aim was to get the info across.
So using the WSJT message structures that are possible,
[indicated by square brackets}
"CQ Gx4JNT/P" [Free Text or could be compressed]
"Gx4JNT/P GW9BOF/P" [Compressed]
{We now know who we're talking to; no need for full callsigns any
more}
"BOF JNT 59002" [free text]
"JNT BOF 54006" [free text]
"BOF IO70AA" [free text]
"JNT IO90IV58" [free text]
"GW9BOF/P Gx4JNT/P RRR" [compressed]
"Gx4JNT/P GW9BOF/P RRR" [compressed]
But as I said, I rarely 'do' contests. All the info is there.and who
dictates full callsigns need be sent on each over. Who does that
anyway ?
[2]
Virus-free. www.avg.com [2]
On 19 October 2017 at 12:11, 'Martin A Hall' gorrell77@...
[ukmicrowaves] <ukmicrowaves@...> wrote:

Andy, OK, come up with a form of contest exchange that matches the
format used in the RSGB MGM Contest Guidelines, and I’ll get it
included. Step-by-step, just as in the Guidelines. We’ve been
here before, and your previous suggestion didn’t stand up to
scrutiny. Your comment about beacons is a red herring.
Like Sam, I’m not an expert, but I am willing to learn. That is
why I raised the issue (again).
73, Martin
GM8IEM – IO78HF
FROM: ukmicrowaves@...
[mailto:ukmicrowaves@...]
SENT: 19 October 2017 11:53
TO: ukmicrowaves@...
SUBJECT: Re: [ukmicrowaves] DIGIFEST!
Of course it can. The message structure is the same as all the
other WSJT modes, (ISCAT excepted). All I was saying is that the
semi-automated QSO completion system in the latest version,
targeted mainly at the DX chasing HF community using FT8, cannot be
used.
It's just that you need to use the unformatted 13 character message
structure for 6 digit locators (exactly as is done on all uWave
beacons sending JT4 and JT65)
At the leisurely pace of uW contests, that should hardly be an issue
'JNT
On 19 October 2017 at 11:42, 'Martin A Hall' gorrell77@...
[ukmicrowaves] <ukmicrowaves@...> wrote:
Andy,
Your response seems to support the view that JT9F can’t be used in
contests where it is necessary to exchange the usual contest
information.
The RSGB Contest Committees looked at this in some detail before
coming up with its guidelines for the use of MGM in contests, which
may be found at http://www.rsgbcc.org/vhf/MGMGuidelines.pdf No-one
has yet challenged what is written there, or had logs using highly
structured coding schemes accepted by the Contest Support Committee
as being valid. If we’ve got it wrong, we need to know.
I’ve raised this issue before on this reflector, and no-one has
yet come up with a protocol for exchanging 6-figure locator, report
and serial number using the highly structured/optimised message
formats of the modern coding schemes that stands up to scrutiny. If
one exists, then the RSGB CCs would like to know about it.
73, Martin
GM8IEM – IO78HF
FROM: ukmicrowaves@...
[mailto:ukmicrowaves@...]
SENT: 19 October 2017 10:59
TO: ukmicrowaves@...
SUBJECT: Re: [ukmicrowaves] DIGIFEST!
If you use the free-format message, you can get the 6 digit locator
in there. But auto completion won't allow that, so the
semi-automated exchange isn't possible.
Which some would, no doubt, say is all to the good
Andy
On 19 October 2017 at 10:54, 'Martin A Hall' gorrell77@...
[ukmicrowaves] <ukmicrowaves@...> wrote:
Hi Sam,
I’m interested in your comments that JT9F might be a good contest
mode.
Unlike the free form message structure of ISCAT, JT9F is a highly
structured/optimised scheme, which precludes the exchange of the
normal European 6 figure locator, Report and Serial Number.
Therefore we would need to have a contest based on the exchange of 4
figure grid and report only, which means a shift in contesting
mind-set (the same applies to the other modern coding schemes such
as MSK144). I don’t have a problem with this, personally, though
others might.
Or am I missing something?
73, Martin
GM8IEM – IO78HF
FROM: ukmicrowaves@...
[mailto:ukmicrowaves@...]
SENT: 19 October 2017 10:30
TO: ukmicrowaves@...
SUBJECT: Re: [ukmicrowaves] DIGIFEST!
John and I tried Ft8 on our very dispersive 10GHz path just to see
what it looked like. As expected, the spreading was far too great to
get any decodes. No surprise there, but worth trying.
On JT9F fast (15 second) and auto sequence, the complete QSO was
over almost before we realised what had happened! Not very
personal, but actually great fun to see in action.
It could be a good contest mode, allowing quick QSOs.
Most of the activity, last evening, was on 23cm where the pace of
the QSOs allows time to play with digital settings.
73 de Sam, G4DDK
Sent from Yahoo Mail for iPhone [1]
On Thursday, October 19, 2017, 10:11 am, Andy Talbot
andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...>
wrote:
FT8 is the latest mode designed for HF / 50MHz with 15 second cycle
and fast turnaround - you need your wits about you to use it, hence
the almost-automatic QSO structure and automated message box
filling.
JT9 is a more conventional mode with some fast / wide spaced options
that are technically better suited to uWaves
'ANdy G4JNT
[2]
Virus-free. www.avg.com [2]
On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...>
wrote:
Do you mean FT8 or JT9 ?
Very different modes
'jnt
On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves]
<ukmicrowaves@...> wrote:
Hi Neil
I think we've discovered that Fast FT9 with auto seq is the "dB's"
for 23cm digital!
Tnx for the QSOs.
Hope some more of you will join us next Wednesday night. Congregate
on 1296.165 and KST.
Maybe we should have a "guess the mode' competition?
73
John
On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves]
<ukmicrowaves@...> wrote:
If anyone would like to play, I am on 1296.167 in ISCAT-B but happy
to try any digimode, even (gulp) FT8 like the smart kids. KST and
Twitter, or email for skeds.
Neil G4DBN
On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:
Wednesday night is digital modes night.
Currently calling CQ on 1296.165 JT4F 2nd period
[2]
Virus-free. www.avg.com [2]
Links:
------
[1] https://overview.mail.yahoo.com/?.src=iOS
[2]
http://www.avg.com/email-signature?utm_medium=email&;utm_source=link&amp;utm_campaign=sig-email&amp;utm_content=webmail
[3]
https://groups.yahoo.com/neo/groups/ukmicrowaves/info;_ylc=X3oDMTJlN2ZoZjg1BF9TAzk3MzU5NzE0BGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTUwODQxNTc0NQ--
[4]
https://groups.yahoo.com/neo/groups/ukmicrowaves/members/all;_ylc=X3oDMTJmODkzaXA0BF9TAzk3MzU5NzE0BGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZtYnJzBHN0aW1lAzE1MDg0MTU3NDU-
[5]
https://groups.yahoo.com/neo;_ylc=X3oDMTJka2NzbnEwBF9TAzk3NDc2NTkwBGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA2dmcARzdGltZQMxNTA4NDE1NzQ1
[6] https://info.yahoo.com/privacy/us/yahoo/groups/details.html
[7] https://info.yahoo.com/legal/us/yahoo/utos/terms/


Re: DIGIFEST!

Neil Smith G4DBN
 

Any hardcore VHF/UHF contesters out there with Qt coding skills fancy joining the WSJT dev team, and submitting a patch to extend the exchange structure for key modes to support a valid contest exchange in auto mode without any convoluted usage? Qt is nice to work with, totally cross-platform and (mostly) sensible.  At least, compared with certain other development environments. I've only used the free version https://www.qt.io/download-qt-for-application-development

The user base for VHF/UHF contest use under EU-style rules is tiny in comparison with even EME usage, never mind the HF twiddles users. Without a champion inside the dev team, our aspirations are not going to be prioritised.

Neil G4DBN
#notvolunteering


On 19/10/2017 12:37, 'Martin A Hall' gorrell77@... [ukmicrowaves] wrote:

 

That is why if someone can come up with a step-by-step guide to using the highly structured modes to exchange the standard European contest information I’m all ears.  Several operators I have discussed this with have said they believe it can be done, but none has yet succeeded in coming up with a protocol that actually works.  I am happy to buy several pints for anyone that does.



Re: UK Microwave Group mm-wave contest - Sunday 22nd October

Keith GW3TKH
 

GW3TKH & G4HQX will be operating in the 50Mhz AFS contest on Sunday.

Weather dosen't look too promising for /P on any band, but at least we'll
be inside a van!.
Good luck to any mm'terists who venture out.

73
Keith



From: "G3XDY g3xdy@... [ukmicrowaves]"
To: "ukmicrowaves@..."
Sent: Thursday, 19 October 2017, 3:10
Subject: [ukmicrowaves] UK Microwave Group mm-wave contest - Sunday 22nd October

 
The final session of the UKuG 24, 47 and 76GHz contests takes place this
Sunday, 22nd October, from 0900-1700z (1000-1800BST).

The weather forecast is not good, with gales in many places and some
rain likely to feature too, so I'm not expecting a big turn out, but if
those planning to take part would like to post their plans I can collate
them.

73

John G3XDY

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus




Re: DIGIFEST!

Martin A Hall <gorrell77@...>
 

Thank you, Andy, at first sight that looks OK – I agree that abbreviated call-signs are fine.  I appreciate you going to the trouble of producing this, that’s just what I was looking for – it’s good to have an expert input.  I only took the opportunity to raise this again because Sam had mentioned contesting.  The last time I did the same with this group the responses didn’t provide a workable solution, otherwise it would have already been included in the Guidelines. 

 

I’ll try out your protocol and see if it works in a real QSO, using WSJT-X.  If it does, I’ll recommend to the VHF CC that it goes into the Guidelines, and I will buy you several pints.  If not I’ll let you know.

 

I gave a link to the Guidelines in my message of 11:42 earlier today (see below), so you must have missed it.  They have been publicised by the RSGB in the Sport Radio column of RadCom, and within the VHF CC web pages, but if you aren’t interested in contesting it’s no surprise you haven’t come across them.  Unfortunately in the far north of the UK there is little 23cm activity outside the UKACs and the UKuG Low Band contests at the times I can operate, so contests are the main source of my QSOs.  Even the recent weekend 1.3 GHz Trophy and 432MHz up contests only produced 4 contacts on 23cm in 24 hours (all SSB), a dismal and disappointing level of activity, since there were loads of planes about that would have given me contacts with the many stations in the north of England that have 23cm capability.

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 12:31
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

What RSGB MGM Contest guidelines ?   First I've heard of them - but not personally having much interest in contests at all, no doubt missed a box ticking exercise ...

 

I thought the aim was to get the info across.

 

So   using the WSJT message structures that are possible,    [indicated by square brackets}

 

"CQ Gx4JNT/P"   [Free Text or could be compressed]

"Gx4JNT/P GW9BOF/P" [Compressed]

     {We now know who we're talking to; no need for full callsigns any more}

"BOF JNT 59002"   [free text]

"JNT BOF 54006"   [free text]

"BOF    IO70AA"    [free text]

"JNT IO90IV58"     [free text]

"GW9BOF/P Gx4JNT/P  RRR"  [compressed]

"Gx4JNT/P GW9BOF/P  RRR"  [compressed]

 

But as I said, I rarely 'do' contests.  All the info is there.and who dictates full callsigns need be sent on each over.  Who does that anyway ?

 

 

 

Virus-free. www.avg.com

 

On 19 October 2017 at 12:11, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Andy, OK, come up with a form of contest exchange that matches the format used in the RSGB MGM Contest Guidelines, and I’ll get it included.  Step-by-step, just as in the Guidelines.  We’ve been here before, and your previous suggestion didn’t stand up to scrutiny.  Your comment about beacons is a red herring. 

 

Like Sam, I’m not an expert, but I am willing to learn.  That is why I raised the issue (again).

 

73, Martin

GM8IEM – IO78HF

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 11:53


To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

Of course it can.   The message structure is the same as all the other WSJT modes, (ISCAT excepted).   All I was saying is that the semi-automated QSO completion system in the latest version,  targeted mainly at the DX chasing HF community using FT8, cannot be used.

 

It's just that you need to use the unformatted 13 character message structure for 6 digit locators (exactly as is done on all uWave beacons sending JT4 and JT65)

 

At the leisurely pace of uW contests, that should hardly be an issue

 

'JNT

 

 

 

On 19 October 2017 at 11:42, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Andy,

 

Your response seems to support the view that JT9F can’t be used in contests where it is necessary to exchange the usual contest information.

 

The RSGB Contest Committees looked at this in some detail before coming up with its guidelines for the use of MGM in contests, which may be found at http://www.rsgbcc.org/vhf/MGMGuidelines.pdf   No-one has yet challenged what is written there, or had logs using highly structured coding schemes accepted by the Contest Support Committee as being valid.  If we’ve got it wrong, we need to know.

 

I’ve raised this issue before on this reflector, and no-one has yet come up with a protocol for exchanging 6-figure locator, report and serial number using the highly structured/optimised message formats of the modern coding schemes that stands up to scrutiny.  If one exists, then the RSGB CCs would like to know about it.  

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 10:59


To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

If you use the free-format message, you can get the 6 digit locator in there.  But auto completion won't allow that, so the semi-automated exchange isn't possible.

Which some would, no doubt, say is all to the good 

 

Andy

 

On 19 October 2017 at 10:54, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Sam,

 

I’m interested in your comments that JT9F might be a good contest mode. 

 

Unlike the free form message structure of ISCAT, JT9F is a highly structured/optimised scheme, which precludes the exchange of the normal European 6 figure locator, Report and Serial Number.  Therefore we would need to have a contest based on the exchange of 4 figure grid and report only, which means a shift in contesting mind-set (the same applies to the other modern coding schemes such as MSK144).  I don’t have a problem with this, personally, though others might.

 

Or am I missing something?

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 10:30
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.

It could be a good contest mode, allowing quick QSOs.

 

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

 

73 de Sam, G4DDK

 



On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

 

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

 

'ANdy  G4JNT

 

alt

Virus-free. www.avg.com

 

On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:

Do you mean FT8 or JT9 ?

 

Very different modes

 

'jnt

 

 

On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Neil

I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

 

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73

John


 

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN

 

On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:

 

Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period

 

 

 

 

alt

Virus-free. www.avg.com

 

 

 

 


Re: Pluto SRD and GNURadio - help!

Derek Kozel <derek.kozel@...>
 

Hi Jules,

The Windows build of GNU Radio doesn't currently include PlutoSDR support, it'll be in the next build.

For Ubuntu, I don't have a PlutoSDR but can probably help you get it working. I've sent you a direct message. If anyone else has a PlutoSDR and is having trouble getting it working with GNU Radio let me know. It will get a bit easier as the software matures. It's still very recently released.

Cheers,
Derek

On Thu, Oct 19, 2017 at 12:23 PM, Jules jules@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

I'm trying to get a Pluto ADALM working with GNU radio.
I have tried some guides on the Pluto wiki, for ubuntu, but they don't
work for me.  And I can find nothing at all on Windows.
Has anyone managed this, and if so, could you point me at any
info/guides you may have used.

Ta
Jules



Re: DIGIFEST!

Martin A Hall <gorrell77@...>
 

Everything you write matches my sentiments, Conrad.

 

That is why if someone can come up with a step-by-step guide to using the highly structured modes to exchange the standard European contest information I’m all ears.  Several operators I have discussed this with have said they believe it can be done, but none has yet succeeded in coming up with a protocol that actually works.  I am happy to buy several pints for anyone that does.

 

73, Martin

GM8IEM – IO78HF

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 12:17
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

As a regular contester and user of MGM modes during contests I think
that there is very little chance of persuading the VHFCC that it's
acceptable to exchange less information that those using CW or SSB. I
can see their point. There is also some talk of MGM versus none MGM
categories in these contests. I am very opposed to a separate category
for MGM as the mix and match nature of the current system is very
attractive to me and breaks up the monotony nicely.

I must admit that I had never considered the use of any form of MGM on
microwaves, although up to now I am only QRV on 23cms. Next year 13cms,
6cms and 3cms I hope.

What I find really irksome is the way that the WSJT-X developers ignore
the needs of EU VHF and above operators, there are several sins IMO. JT
and friends are happy to roll out the usage statistics involving these
users but not at all happy to accommodate them. Pet hate of mine, along
with the flagrant disregard for the band plan. It's not that I do not
appreciate the wonderful facilities that WSJT has given us but I feel at
times EU ops have been totally ignored. The sycophants will disagree but
hero worship has never been my thing, apart from G3LTF that is!

Regards

Conrad PA5Y

On 2017-10-19 11:54, 'Martin A Hall' gorrell77@...
[ukmicrowaves] wrote:
> Hi Sam,
>
> I’m interested in your comments that JT9F might be a good contest
> mode.
>
> Unlike the free form message structure of ISCAT, JT9F is a highly
> structured/optimised scheme, which precludes the exchange of the
> normal European 6 figure locator, Report and Serial Number. Therefore
> we would need to have a contest based on the exchange of 4 figure grid
> and report only, which means a shift in contesting mind-set (the same
> applies to the other modern coding schemes such as MSK144). I don’t
> have a problem with this, personally, though others might.
>
> Or am I missing something?
>
> 73, Martin
>
> GM8IEM – IO78HF
>
> FROM: ukmicrowaves@...
> [mailto:ukmicrowaves@...]
> SENT: 19 October 2017 10:30
> TO: ukmicrowaves@...
> SUBJECT: Re: [ukmicrowaves] DIGIFEST!
>
> John and I tried Ft8 on our very dispersive 10GHz path just to see
> what it looked like. As expected, the spreading was far too great to
> get any decodes. No surprise there, but worth trying.
>
> On JT9F fast (15 second) and auto sequence, the complete QSO was over
> almost before we realised what had happened! Not very personal, but
> actually great fun to see in action.
>
> It could be a good contest mode, allowing quick QSOs.
>
> Most of the activity, last evening, was on 23cm where the pace of the
> QSOs allows time to play with digital settings.
>
> 73 de Sam, G4DDK
>
>[2]
>
> On Thursday, October 19, 2017, 10:11 am, Andy Talbot
> andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...>
> wrote:
>
>> FT8 is the latest mode designed for HF / 50MHz with 15 second cycle
>> and fast turnaround - you need your wits about you to use it, hence
>> the almost-automatic QSO structure and automated message box
>> filling.
>>
>> JT9 is a more conventional mode with some fast / wide spaced options
>> that are technically better suited to uWaves
>>
>> 'ANdy G4JNT
>>
>> [1]
>>
>> Virus-free. www.avg.com [1]
>>
>> On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...>
>> wrote:
>>
>> Do you mean FT8 or JT9 ?
>>
>> Very different modes
>>
>> 'jnt
>>
>> On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves]
>> <ukmicrowaves@...> wrote:
>>
>> Hi Neil
>>
>> I think we've discovered that Fast FT9 with auto seq is the "dB's"
>> for 23cm digital!
>>
>> Tnx for the QSOs.
>>
>> Hope some more of you will join us next Wednesday night. Congregate
>> on 1296.165 and KST.
>>
>> Maybe we should have a "guess the mode' competition?
>>
>> 73
>>
>> John
>>
>> On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves]
>> <ukmicrowaves@...> wrote:
>>
>> If anyone would like to play, I am on 1296.167 in ISCAT-B but happy
>> to try any digimode, even (gulp) FT8 like the smart kids. KST and
>> Twitter, or email for skeds.
>>
>> Neil G4DBN
>>
>> On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:
>>
>> Wednesday night is digital modes night.
>>
>> Currently calling CQ on 1296.165 JT4F 2nd period
>
> [1]
>
> Virus-free. www.avg.com [1]
>
>
>
> Links:
> ------
> [1]
> http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail
> [2] https://overview.mail.yahoo.com/?.src=iOS
> [3]
> https://groups.yahoo.com/neo/groups/ukmicrowaves/info;_ylc=X3oDMTJlcHBmczNtBF9TAzk3MzU5NzE0BGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTUwODQwNjg4Ng--
> [4]
> https://groups.yahoo.com/neo/groups/ukmicrowaves/members/all;_ylc=X3oDMTJmNzNlMGpxBF9TAzk3MzU5NzE0BGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZtYnJzBHN0aW1lAzE1MDg0MDY4ODY-
> [5]
> https://groups.yahoo.com/neo;_ylc=X3oDMTJkaXJtcW12BF9TAzk3NDc2NTkwBGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA2dmcARzdGltZQMxNTA4NDA2ODg3
> [6] https://info.yahoo.com/privacy/us/yahoo/groups/details.html
> [7] https://info.yahoo.com/legal/us/yahoo/utos/terms/


Re: DIGIFEST!

Andy G4JNT
 

What RSGB MGM Contest guidelines ?   First I've heard of them - but not personally having much interest in contests at all, no doubt missed a box ticking exercise ...

I thought the aim was to get the info across.

So   using the WSJT message structures that are possible,    [indicated by square brackets}

"CQ Gx4JNT/P"   [Free Text or could be compressed]
"Gx4JNT/P GW9BOF/P" [Compressed]
     {We now know who we're talking to; no need for full callsigns any more}
"BOF JNT 59002"   [free text]
"JNT BOF 54006"   [free text]
"BOF    IO70AA"    [free text]
"JNT IO90IV58"     [free text]
"GW9BOF/P Gx4JNT/P  RRR"  [compressed]
"Gx4JNT/P GW9BOF/P  RRR"  [compressed]

But as I said, I rarely 'do' contests.  All the info is there.and who dictates full callsigns need be sent on each over.  Who does that anyway ?



Virus-free. www.avg.com

On 19 October 2017 at 12:11, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

Andy, OK, come up with a form of contest exchange that matches the format used in the RSGB MGM Contest Guidelines, and I’ll get it included.  Step-by-step, just as in the Guidelines.  We’ve been here before, and your previous suggestion didn’t stand up to scrutiny.  Your comment about beacons is a red herring. 

 

Like Sam, I’m not an expert, but I am willing to learn.  That is why I raised the issue (again).

 

73, Martin

GM8IEM – IO78HF

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@yahoogroups.com]
Sent: 19 October 2017 11:53


To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

Of course it can.   The message structure is the same as all the other WSJT modes, (ISCAT excepted).   All I was saying is that the semi-automated QSO completion system in the latest version,  targeted mainly at the DX chasing HF community using FT8, cannot be used.

 

It's just that you need to use the unformatted 13 character message structure for 6 digit locators (exactly as is done on all uWave beacons sending JT4 and JT65)

 

At the leisurely pace of uW contests, that should hardly be an issue

 

'JNT

 

 

 

On 19 October 2017 at 11:42, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Andy,

 

Your response seems to support the view that JT9F can’t be used in contests where it is necessary to exchange the usual contest information.

 

The RSGB Contest Committees looked at this in some detail before coming up with its guidelines for the use of MGM in contests, which may be found at http://www.rsgbcc.org/vhf/MGMGuidelines.pdf   No-one has yet challenged what is written there, or had logs using highly structured coding schemes accepted by the Contest Support Committee as being valid.  If we’ve got it wrong, we need to know.

 

I’ve raised this issue before on this reflector, and no-one has yet come up with a protocol for exchanging 6-figure locator, report and serial number using the highly structured/optimised message formats of the modern coding schemes that stands up to scrutiny.  If one exists, then the RSGB CCs would like to know about it.  

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@yahoogroups.com]
Sent: 19 October 2017 10:59


To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

If you use the free-format message, you can get the 6 digit locator in there.  But auto completion won't allow that, so the semi-automated exchange isn't possible.

Which some would, no doubt, say is all to the good 

 

Andy

 

On 19 October 2017 at 10:54, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Sam,

 

I’m interested in your comments that JT9F might be a good contest mode. 

 

Unlike the free form message structure of ISCAT, JT9F is a highly structured/optimised scheme, which precludes the exchange of the normal European 6 figure locator, Report and Serial Number.  Therefore we would need to have a contest based on the exchange of 4 figure grid and report only, which means a shift in contesting mind-set (the same applies to the other modern coding schemes such as MSK144).  I don’t have a problem with this, personally, though others might.

 

Or am I missing something?

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@yahoogroups.com]
Sent: 19 October 2017 10:30
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.

It could be a good contest mode, allowing quick QSOs.

 

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

 

73 de Sam, G4DDK

 



On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

 

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

 

'ANdy  G4JNT

 

alt

Virus-free. www.avg.com

 

On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:

Do you mean FT8 or JT9 ?

 

Very different modes

 

'jnt

 

 

On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Neil

I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

 

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73

John


 

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN

 

On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:

 

Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period

 

 

 

 

alt

Virus-free. www.avg.com

 

 

 



Pluto SRD and GNURadio - help!

Jules G0NZO
 

I'm trying to get a Pluto ADALM working with GNU radio.
I have tried some guides on the Pluto wiki, for ubuntu, but they don't work for me.  And I can find nothing at all on Windows.
Has anyone managed this, and if so, could you point me at any info/guides you may have used.

Ta
Jules


Re: DIGIFEST!

Neil Smith G4DBN
 

Main aim for me was to work out which modes are best where there is multiple aircraft scatter at different doppler rates, plus a sniff of tropo.  The off-axis scatter from John's QSO with Jason G4KVT was made up of three or more similar-strength traces, but with no time correlation and in some cases, the doppler shift went in the "wrong" direction, where a plane was circling in one of the holding stacks somewhere out west.  I was beaming around 180 to 190 degrees, so 30-40 degrees away from John.

For the classic case with on-axis scatter between me and Jason, ISCAT worked fine, but the reflections from Jason's relative QRP were too short for any of the slow modes, despite them being a few dB over noise for 8 seconds or so.

We didn't try QRA64, which might have been able to pull him out via tropo, that will be for another session I think.

JT9F worked well for an automated direct QSO without much scatter, but CW would have been faster at the S/N ratio we had.  JT4F worked well also.

The use-cases I am particularly interested in are:

1) off-axis contest QSOs where the direct path doesn't work because of local obstacles

2) where the path is way beyond tropo range and the aircraft scatter is weak, short-lived and has a high rate of doppler.

For instance on 23cm into DL/OZ, where the common scatter zone on 23/13cm is maybe 50km at the most and only 5km wide and 2km deep.  For that tiny volume, there are probably only five planes in a 2.5 hour contest session.  The peak lasts maybe 12-15 seconds, so it really needs a 5 second period mode with error correction and fewer false decodes than ISCAT.

Might have been interesting to try MSK144 for those short-period aircraft scatter reflections. 

More experiments next Wednesday!

Neil G4DBN



On 19/10/2017 10:51, Andy Talbot andy.g4jnt@... [ukmicrowaves] wrote:

 
Interesting - I'm going to forward these comments on the WSJT Group - that seems to have been taken over by HF Dxers all going on about FT8.   Make them realise there is interest in teh WSJT-X suite above HF


Andy


On 19 October 2017 at 10:30, jewell@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.
It could be a good contest mode, allowing quick QSOs.

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

73 de Sam, G4DDK



Sent from Yahoo Mail for iPhone

On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 
FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

'ANdy  G4JNT

alt Virus-free. www.avg.com

On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:
Do you mean FT8 or JT9 ?

Very different modes

'jnt


On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
Hi Neil
I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73
John

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN


On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:
 
Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period




alt Virus-free. www.avg.com




Re: DIGIFEST!

SAM JEWELL
 

It might be useful to have those settings, if we can agree, as the default values. There is nothing stopping QSO partners agreeing to try other settings by arrangement.
Other digital modes as required. There is nothing sacrosanct about any mode as far as I can see, as long as it works.
Andy seems to have laid the ghost that the JT9F mode cannot be used for a contest locator and serial exchange in the free-form text box for contest purposes, if auto sequencing is not used. Auto sequencing may not be the default for contesting.
The error correction takes care of misheard information.........Surely an advantage?
My only concern is that signal strength reporting in JT9 may not yet be accurately implemented as judged by the results from last night's activity. That will surely be taken care of in due course? At present it is just like a 59 report!

73 de Sam, G4DDK






From: "Phil Williams phil@... [ukmicrowaves]"
To: ukmicrowaves@...
Sent: Thursday, 19 October 2017, 12:03
Subject: Re: [ukmicrowaves] DIGIFEST!

 
Thanks Sam & Andy, Yes if you enable VHF/UHF features I've discovered you can get JT9 Submode F and change the T/R to 15 Secs and tick Fast, and choose Auto Seq. 
Theres plenty of scope for 2 stations getting different settings accidentally or well-meaningly. So the parameters need to be firmed up in advance for sure. 
Hope to around next Weds evening. Im using it to drive a Scottie Globemaster SDR, pre transverter, one day it might go direct on to 23. Nice 'cos it only uses 1 USB lead  Phil 'YPQ



On Thu, Oct 19, 2017 at 11:36 AM, jewell@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
I’ve not checked WSJT-X as I’m not in the shack at present, but maybe it requires you to check the ‘Enable VHF bands’ in set up, as required for most of the ‘useful’ modes.......?      ! ; )

Sam



Sent from Yahoo Mail for iPad

On Thursday, October 19, 2017, 11:17 am, Phil Williams phil@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
Ive got WSJT-X working here in IO70 on FT8  using  v1.8.0-rc3. Works on HF nicely, there is a mode JT9 in this suite that uses 60second slots, can't find a 'fast' box to tick for 15 sec slots.
Do I need a different version of WSJT to participate in the weds evening sessions?, I fancy a dabble  100w from N.Cornwall.
Phil G3YPQ

On Thu, Oct 19, 2017 at 10:51 AM, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
Interesting - I'm going to forward these comments on the WSJT Group - that seems to have been taken over by HF Dxers all going on about FT8.   Make them realise there is interest in teh WSJT-X suite above HF


Andy


On 19 October 2017 at 10:30, jewell@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.
On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.
It could be a good contest mode, allowing quick QSOs.

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

73 de Sam, G4DDK





On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

'ANdy  G4JNT

altVirus-free. www.avg.com

On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:
Do you mean FT8 or JT9 ?

Very different modes

'jnt


On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
Hi Neil
I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73
John

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.
Neil G4DBN

On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:
 
Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period




altVirus-free. www.avg.com







Re: DIGIFEST!

Conrad, PA5Y
 

As a regular contester and user of MGM modes during contests I think that there is very little chance of persuading the VHFCC that it's acceptable to exchange less information that those using CW or SSB. I can see their point. There is also some talk of MGM versus none MGM categories in these contests. I am very opposed to a separate category for MGM as the mix and match nature of the current system is very attractive to me and breaks up the monotony nicely.

I must admit that I had never considered the use of any form of MGM on microwaves, although up to now I am only QRV on 23cms. Next year 13cms, 6cms and 3cms I hope.

What I find really irksome is the way that the WSJT-X developers ignore the needs of EU VHF and above operators, there are several sins IMO. JT and friends are happy to roll out the usage statistics involving these users but not at all happy to accommodate them. Pet hate of mine, along with the flagrant disregard for the band plan. It's not that I do not appreciate the wonderful facilities that WSJT has given us but I feel at times EU ops have been totally ignored. The sycophants will disagree but hero worship has never been my thing, apart from G3LTF that is!

Regards

Conrad PA5Y

On 2017-10-19 11:54, 'Martin A Hall' gorrell77@... [ukmicrowaves] wrote:
Hi Sam,
I’m interested in your comments that JT9F might be a good contest
mode.
Unlike the free form message structure of ISCAT, JT9F is a highly
structured/optimised scheme, which precludes the exchange of the
normal European 6 figure locator, Report and Serial Number. Therefore
we would need to have a contest based on the exchange of 4 figure grid
and report only, which means a shift in contesting mind-set (the same
applies to the other modern coding schemes such as MSK144). I don’t
have a problem with this, personally, though others might.
Or am I missing something?
73, Martin
GM8IEM – IO78HF
FROM: ukmicrowaves@...
[mailto:ukmicrowaves@...]
SENT: 19 October 2017 10:30
TO: ukmicrowaves@...
SUBJECT: Re: [ukmicrowaves] DIGIFEST!
John and I tried Ft8 on our very dispersive 10GHz path just to see
what it looked like. As expected, the spreading was far too great to
get any decodes. No surprise there, but worth trying.
On JT9F fast (15 second) and auto sequence, the complete QSO was over
almost before we realised what had happened! Not very personal, but
actually great fun to see in action.
It could be a good contest mode, allowing quick QSOs.
Most of the activity, last evening, was on 23cm where the pace of the
QSOs allows time to play with digital settings.
73 de Sam, G4DDK
Sent from Yahoo Mail for iPhone [2]
On Thursday, October 19, 2017, 10:11 am, Andy Talbot
andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...>
wrote:

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle
and fast turnaround - you need your wits about you to use it, hence
the almost-automatic QSO structure and automated message box
filling.
JT9 is a more conventional mode with some fast / wide spaced options
that are technically better suited to uWaves
'ANdy G4JNT
[1]
Virus-free. www.avg.com [1]
On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...>
wrote:
Do you mean FT8 or JT9 ?
Very different modes
'jnt
On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves]
<ukmicrowaves@...> wrote:
Hi Neil
I think we've discovered that Fast FT9 with auto seq is the "dB's"
for 23cm digital!
Tnx for the QSOs.
Hope some more of you will join us next Wednesday night. Congregate
on 1296.165 and KST.
Maybe we should have a "guess the mode' competition?
73
John
On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves]
<ukmicrowaves@...> wrote:
If anyone would like to play, I am on 1296.167 in ISCAT-B but happy
to try any digimode, even (gulp) FT8 like the smart kids. KST and
Twitter, or email for skeds.
Neil G4DBN
On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:
Wednesday night is digital modes night.
Currently calling CQ on 1296.165 JT4F 2nd period
[1]
Virus-free. www.avg.com [1]
Links:
------
[1]
http://www.avg.com/email-signature?utm_medium=email&;utm_source=link&amp;utm_campaign=sig-email&amp;utm_content=webmail
[2] https://overview.mail.yahoo.com/?.src=iOS
[3]
https://groups.yahoo.com/neo/groups/ukmicrowaves/info;_ylc=X3oDMTJlcHBmczNtBF9TAzk3MzU5NzE0BGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTUwODQwNjg4Ng--
[4]
https://groups.yahoo.com/neo/groups/ukmicrowaves/members/all;_ylc=X3oDMTJmNzNlMGpxBF9TAzk3MzU5NzE0BGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwN2dGwEc2xrA3ZtYnJzBHN0aW1lAzE1MDg0MDY4ODY-
[5]
https://groups.yahoo.com/neo;_ylc=X3oDMTJkaXJtcW12BF9TAzk3NDc2NTkwBGdycElkAzgwOTAxMjEEZ3Jwc3BJZAMxNzA1MDYzMTA4BHNlYwNmdHIEc2xrA2dmcARzdGltZQMxNTA4NDA2ODg3
[6] https://info.yahoo.com/privacy/us/yahoo/groups/details.html
[7] https://info.yahoo.com/legal/us/yahoo/utos/terms/


Re: DIGIFEST!

Martin A Hall <gorrell77@...>
 

Andy, OK, come up with a form of contest exchange that matches the format used in the RSGB MGM Contest Guidelines, and I’ll get it included.  Step-by-step, just as in the Guidelines.  We’ve been here before, and your previous suggestion didn’t stand up to scrutiny.  Your comment about beacons is a red herring. 

 

Like Sam, I’m not an expert, but I am willing to learn.  That is why I raised the issue (again).

 

73, Martin

GM8IEM – IO78HF

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 11:53
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

Of course it can.   The message structure is the same as all the other WSJT modes, (ISCAT excepted).   All I was saying is that the semi-automated QSO completion system in the latest version,  targeted mainly at the DX chasing HF community using FT8, cannot be used.

 

It's just that you need to use the unformatted 13 character message structure for 6 digit locators (exactly as is done on all uWave beacons sending JT4 and JT65)

 

At the leisurely pace of uW contests, that should hardly be an issue

 

'JNT

 

 

 

On 19 October 2017 at 11:42, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Andy,

 

Your response seems to support the view that JT9F can’t be used in contests where it is necessary to exchange the usual contest information.

 

The RSGB Contest Committees looked at this in some detail before coming up with its guidelines for the use of MGM in contests, which may be found at http://www.rsgbcc.org/vhf/MGMGuidelines.pdf   No-one has yet challenged what is written there, or had logs using highly structured coding schemes accepted by the Contest Support Committee as being valid.  If we’ve got it wrong, we need to know.

 

I’ve raised this issue before on this reflector, and no-one has yet come up with a protocol for exchanging 6-figure locator, report and serial number using the highly structured/optimised message formats of the modern coding schemes that stands up to scrutiny.  If one exists, then the RSGB CCs would like to know about it.  

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 10:59


To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

If you use the free-format message, you can get the 6 digit locator in there.  But auto completion won't allow that, so the semi-automated exchange isn't possible.

Which some would, no doubt, say is all to the good 

 

Andy

 

On 19 October 2017 at 10:54, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Sam,

 

I’m interested in your comments that JT9F might be a good contest mode. 

 

Unlike the free form message structure of ISCAT, JT9F is a highly structured/optimised scheme, which precludes the exchange of the normal European 6 figure locator, Report and Serial Number.  Therefore we would need to have a contest based on the exchange of 4 figure grid and report only, which means a shift in contesting mind-set (the same applies to the other modern coding schemes such as MSK144).  I don’t have a problem with this, personally, though others might.

 

Or am I missing something?

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 10:30
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.

It could be a good contest mode, allowing quick QSOs.

 

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

 

73 de Sam, G4DDK

 



On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

 

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

 

'ANdy  G4JNT

 

alt

Virus-free. www.avg.com

 

On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:

Do you mean FT8 or JT9 ?

 

Very different modes

 

'jnt

 

 

On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Neil

I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

 

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73

John


 

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN

 

On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:

 

Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period

 

 

 

 

alt

Virus-free. www.avg.com

 

 

 


Re: Tuning Screws

Paul G8AQA
 

It may be worth considering BA threaded screws which have a fairly fine thread.

Paul G8AQA

On 18/10/2017 22:55, Andy Talbot andy.g4jnt@... [ukmicrowaves] wrote:

 
The actual loss doesn't matter in this case; it's the image filter for a transverter, operating at low level, and there are a goodly few dB in hand.   So there's no need to go to the effort / expense of Ag or Cu.

I have rather tatty and a bit-too-short brass screws that are cut from somewhat dirty studding and are difficult to adjust once in place.   So I just chucked an order into RS for a bag of 20mm Cheese heads Ni plated.   (Filtered search on the RS web site then three mouse clicks as I have an account and all delivery addressing set up.   Took just  a minute or two to place the order)


Andy  'jnt


Virus-free. www.avg.com

On 18 October 2017 at 22:39, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

4mm round sterling silver rod is £8.71+VAT for 100mm. Might it make sense to thread some up and use it for tuning screws? Could use ISO fine thread to make the adjustment more delicate.

Just over a quid for a 10mm grub screw in solid silver. 8mm rod is  £17.43+VAT for 50mm, that would be good to make locknuts and collars. Nice bling factor as well.

Alternatively, threading copper rod isn't *too* horrible to do, so maybe that is a slightly cheaper alternative? 

Neil G4DBN


On 18/10/2017 22:03, Andy Talbot andy.g4jnt@... [ukmicrowaves] wrote:
 
Has anyone ever compared nickel plated versus plain brass tuning screws in filter? Specifically evanescent type

According to a couple of references, the resistivity of brass is, to quote, "only 28% that of copper".  So that means around 5.7E-8 Ohm.m    Nickel comes in at 6.8E-8,   so about 20% worse.

Which means a 3.4GHz ev. filter in WR90 that has about 2dB insertion loss using plain brass screws, shouldn't be that much worse using Ni plated ones.

Only ask, as I've just had to order some M4 brass screws and couldn't get plain ones, only Ni plated.     May be time to make up some silver plating compound - is nickel suited to silver plating?




Re: DIGIFEST!

g3ypq
 

Thanks Sam & Andy, Yes if you enable VHF/UHF features I've discovered you can get JT9 Submode F and change the T/R to 15 Secs and tick Fast, and choose Auto Seq. 
Theres plenty of scope for 2 stations getting different settings accidentally or well-meaningly. So the parameters need to be firmed up in advance for sure. 
Hope to around next Weds evening. Im using it to drive a Scottie Globemaster SDR, pre transverter, one day it might go direct on to 23. Nice 'cos it only uses 1 USB lead  Phil 'YPQ



On Thu, Oct 19, 2017 at 11:36 AM, jewell@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

I’ve not checked WSJT-X as I’m not in the shack at present, but maybe it requires you to check the ‘Enable VHF bands’ in set up, as required for most of the ‘useful’ modes.......?      ! ; )


Sam



Sent from Yahoo Mail for iPad

On Thursday, October 19, 2017, 11:17 am, Phil Williams phil@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Ive got WSJT-X working here in IO70 on FT8  using  v1.8.0-rc3. Works on HF nicely, there is a mode JT9 in this suite that uses 60second slots, can't find a 'fast' box to tick for 15 sec slots.
Do I need a different version of WSJT to participate in the weds evening sessions?, I fancy a dabble  100w from N.Cornwall.
Phil G3YPQ

On Thu, Oct 19, 2017 at 10:51 AM, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

Interesting - I'm going to forward these comments on the WSJT Group - that seems to have been taken over by HF Dxers all going on about FT8.   Make them realise there is interest in teh WSJT-X suite above HF


Andy


On 19 October 2017 at 10:30, jewell@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.
It could be a good contest mode, allowing quick QSOs.

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

73 de Sam, G4DDK





On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

'ANdy  G4JNT

altVirus-free. www.avg.com

On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:
Do you mean FT8 or JT9 ?

Very different modes

'jnt


On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

Hi Neil
I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73
John

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN


On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:
 
Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period




altVirus-free. www.avg.com





Re: DIGIFEST!

SAM JEWELL
 

Hi Martin,
yes, I think it is a useful initiative. John started it some time ago, but as I was away on holiday and then tied up with other things, I was unable to participate for quite a few weeks. I believe John has mentioned it in his column, but of course not everyone gets/sees Radcom, so may not be aware of this initiative.
It has the big advantage of widening some of the Third and fourth Tuesday evening centric activity to another evening. I appreciate that many folks don't want or like digital operation, but you don't have to participate any more than in the regular contests!


73 de Sam, G4DDK






From: "'Martin A Hall' gorrell77@... [ukmicrowaves]"
To: ukmicrowaves@...
Sent: Thursday, 19 October 2017, 11:52
Subject: RE: [ukmicrowaves] DIGIFEST!

 
Sam, I agree with you that there is scope for a contest in which report and 4 figure grid is exchanged, as well as both call-signs.  The unique/unknown part of the exchange is the signal report, since everything else is known beforehand.  We don’t have to be bound by an established exchange format.
 
Unfortunately I work most Wednesday evenings, so am unable to join in the Digifest, and evenings aren’t the best time to make AS QSOs from my location.  As it turns out, I wasn’t working last night, and could have participated, but I didn’t see the message until after the event.  I will try and remember in the future, since it’s a good way of encouraging activity – a very worthwhile initiative by John.
 
73, Martin
GM8IEM – IO78HF
 
 
 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 11:34
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!
 
 
I tend to agree with you, Martin.
The current contest format does nothing for me, so I have long-since given up being a regular contester. 
I don’t pretend to be any sort of expert on digital mode format/structure, but I am sure something acceptable could be devised. A digital contest QSO presumably doesn’t have to be of the same format as the current exchange, does it? I would be interested to hear what others have to say on this subject.
 
Even if my comment about being useful for contests is completely wrong, FT9F fast/15second works well at moderate signal levels and in the presence of aircraft doppler on 23cm and maybe higher bands. A little more experience with weaker signals will be useful in determining if it really has a future in weak signal microwave operation. To that end it would be useful if more people could get on, on a Wednesday evening, for John’s Digifest activity.
 
 
73 de Sam
 
On Thursday, October 19, 2017, 10:54 am, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
Hi Sam,
 
I’m interested in your comments that JT9F might be a good contest mode. 
 
Unlike the free form message structure of ISCAT, JT9F is a highly structured/optimised scheme, which precludes the exchange of the normal European 6 figure locator, Report and Serial Number.  Therefore we would need to have a contest based on the exchange of 4 figure grid and report only, which means a shift in contesting mind-set (the same applies to the other modern coding schemes such as MSK144).  I don’t have a problem with this, personally, though others might.
 
Or am I missing something?
 
73, Martin
GM8IEM – IO78HF
 
 
 
From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 10:30
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!
 
 
John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.
On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.
It could be a good contest mode, allowing quick QSOs.
 
Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 
 
73 de Sam, G4DDK
 


On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.
 
JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 
 
'ANdy  G4JNT
 
alt
Virus-free. www.avg.com
 
On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:
Do you mean FT8 or JT9 ?
 
Very different modes
 
'jnt
 
 
On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
Hi Neil
I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!
 
Tnx for the QSOs.
Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.
Maybe we should have a "guess the mode' competition?

73
John

 
 
On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 
If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.
Neil G4DBN
 
On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:
 
Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period
 
 
 
 
alt
Virus-free. www.avg.com
 



Re: DIGIFEST!

Andy G4JNT
 

Of course it can.   The message structure is the same as all the other WSJT modes, (ISCAT excepted).   All I was saying is that the semi-automated QSO completion system in the latest version,  targeted mainly at the DX chasing HF community using FT8, cannot be used.

It's just that you need to use the unformatted 13 character message structure for 6 digit locators (exactly as is done on all uWave beacons sending JT4 and JT65)

At the leisurely pace of uW contests, that should hardly be an issue

'JNT



On 19 October 2017 at 11:42, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

Andy,

 

Your response seems to support the view that JT9F can’t be used in contests where it is necessary to exchange the usual contest information.

 

The RSGB Contest Committees looked at this in some detail before coming up with its guidelines for the use of MGM in contests, which may be found at http://www.rsgbcc.org/vhf/MGMGuidelines.pdf   No-one has yet challenged what is written there, or had logs using highly structured coding schemes accepted by the Contest Support Committee as being valid.  If we’ve got it wrong, we need to know.

 

I’ve raised this issue before on this reflector, and no-one has yet come up with a protocol for exchanging 6-figure locator, report and serial number using the highly structured/optimised message formats of the modern coding schemes that stands up to scrutiny.  If one exists, then the RSGB CCs would like to know about it.  

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@yahoogroups.com]
Sent: 19 October 2017 10:59


To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

If you use the free-format message, you can get the 6 digit locator in there.  But auto completion won't allow that, so the semi-automated exchange isn't possible.

Which some would, no doubt, say is all to the good 

 

Andy

 

On 19 October 2017 at 10:54, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Sam,

 

I’m interested in your comments that JT9F might be a good contest mode. 

 

Unlike the free form message structure of ISCAT, JT9F is a highly structured/optimised scheme, which precludes the exchange of the normal European 6 figure locator, Report and Serial Number.  Therefore we would need to have a contest based on the exchange of 4 figure grid and report only, which means a shift in contesting mind-set (the same applies to the other modern coding schemes such as MSK144).  I don’t have a problem with this, personally, though others might.

 

Or am I missing something?

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@yahoogroups.com]
Sent: 19 October 2017 10:30
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.

It could be a good contest mode, allowing quick QSOs.

 

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

 

73 de Sam, G4DDK

 



On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

 

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

 

'ANdy  G4JNT

 

alt

Virus-free. www.avg.com

 

On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:

Do you mean FT8 or JT9 ?

 

Very different modes

 

'jnt

 

 

On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Neil

I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

 

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73

John


 

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN

 

On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:

 

Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period

 

 

 

 

alt

Virus-free. www.avg.com

 

 



Re: DIGIFEST!

Martin A Hall <gorrell77@...>
 

Sam, I agree with you that there is scope for a contest in which report and 4 figure grid is exchanged, as well as both call-signs.  The unique/unknown part of the exchange is the signal report, since everything else is known beforehand.  We don’t have to be bound by an established exchange format.

 

Unfortunately I work most Wednesday evenings, so am unable to join in the Digifest, and evenings aren’t the best time to make AS QSOs from my location.  As it turns out, I wasn’t working last night, and could have participated, but I didn’t see the message until after the event.  I will try and remember in the future, since it’s a good way of encouraging activity – a very worthwhile initiative by John.

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 11:34
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

I tend to agree with you, Martin.

The current contest format does nothing for me, so I have long-since given up being a regular contester. 

I don’t pretend to be any sort of expert on digital mode format/structure, but I am sure something acceptable could be devised. A digital contest QSO presumably doesn’t have to be of the same format as the current exchange, does it? I would be interested to hear what others have to say on this subject.

 

Even if my comment about being useful for contests is completely wrong, FT9F fast/15second works well at moderate signal levels and in the presence of aircraft doppler on 23cm and maybe higher bands. A little more experience with weaker signals will be useful in determining if it really has a future in weak signal microwave operation. To that end it would be useful if more people could get on, on a Wednesday evening, for John’s Digifest activity.

 

 

73 de Sam

 



Sent from Yahoo Mail for iPad

On Thursday, October 19, 2017, 10:54 am, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Sam,

 

I’m interested in your comments that JT9F might be a good contest mode. 

 

Unlike the free form message structure of ISCAT, JT9F is a highly structured/optimised scheme, which precludes the exchange of the normal European 6 figure locator, Report and Serial Number.  Therefore we would need to have a contest based on the exchange of 4 figure grid and report only, which means a shift in contesting mind-set (the same applies to the other modern coding schemes such as MSK144).  I don’t have a problem with this, personally, though others might.

 

Or am I missing something?

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 10:30
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.

It could be a good contest mode, allowing quick QSOs.

 

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

 

73 de Sam, G4DDK

 



On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

 

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

 

'ANdy  G4JNT

 

alt

Virus-free. www.avg.com

 

On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:

Do you mean FT8 or JT9 ?

 

Very different modes

 

'jnt

 

 

On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Neil

I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

 

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73

John


 

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN

 

On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:

 

Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period

 

 

 

 

alt

Virus-free. www.avg.com

 


Re: DIGIFEST!

Martin A Hall <gorrell77@...>
 

Andy,

 

Your response seems to support the view that JT9F can’t be used in contests where it is necessary to exchange the usual contest information.

 

The RSGB Contest Committees looked at this in some detail before coming up with its guidelines for the use of MGM in contests, which may be found at http://www.rsgbcc.org/vhf/MGMGuidelines.pdf   No-one has yet challenged what is written there, or had logs using highly structured coding schemes accepted by the Contest Support Committee as being valid.  If we’ve got it wrong, we need to know.

 

I’ve raised this issue before on this reflector, and no-one has yet come up with a protocol for exchanging 6-figure locator, report and serial number using the highly structured/optimised message formats of the modern coding schemes that stands up to scrutiny.  If one exists, then the RSGB CCs would like to know about it.  

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 10:59
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

If you use the free-format message, you can get the 6 digit locator in there.  But auto completion won't allow that, so the semi-automated exchange isn't possible.

Which some would, no doubt, say is all to the good 

 

Andy

 

On 19 October 2017 at 10:54, 'Martin A Hall' gorrell77@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Sam,

 

I’m interested in your comments that JT9F might be a good contest mode. 

 

Unlike the free form message structure of ISCAT, JT9F is a highly structured/optimised scheme, which precludes the exchange of the normal European 6 figure locator, Report and Serial Number.  Therefore we would need to have a contest based on the exchange of 4 figure grid and report only, which means a shift in contesting mind-set (the same applies to the other modern coding schemes such as MSK144).  I don’t have a problem with this, personally, though others might.

 

Or am I missing something?

 

73, Martin

GM8IEM – IO78HF

 

 

 

From: ukmicrowaves@... [mailto:ukmicrowaves@...]
Sent: 19 October 2017 10:30
To: ukmicrowaves@...
Subject: Re: [ukmicrowaves] DIGIFEST!

 

 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.

It could be a good contest mode, allowing quick QSOs.

 

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

 

73 de Sam, G4DDK

 



On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

 

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

 

'ANdy  G4JNT

 

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On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:

Do you mean FT8 or JT9 ?

 

Very different modes

 

'jnt

 

 

On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

Hi Neil

I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

 

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73

John


 

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN

 

On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:

 

Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period

 

 

 

 

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Re: DIGIFEST!

Andy G4JNT
 

Go to SETTINGS  and tick   "Enable VHF/UHF/Microwave Features"

That allows all the fast and wider spaced modes
(It also gives you annoying messages when you subsequently select an HF band)

'JNT


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On 19 October 2017 at 11:17, Phil Williams phil@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

Ive got WSJT-X working here in IO70 on FT8  using  v1.8.0-rc3. Works on HF nicely, there is a mode JT9 in this suite that uses 60second slots, can't find a 'fast' box to tick for 15 sec slots.
Do I need a different version of WSJT to participate in the weds evening sessions?, I fancy a dabble  100w from N.Cornwall.
Phil G3YPQ

On Thu, Oct 19, 2017 at 10:51 AM, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

Interesting - I'm going to forward these comments on the WSJT Group - that seems to have been taken over by HF Dxers all going on about FT8.   Make them realise there is interest in teh WSJT-X suite above HF


Andy


On 19 October 2017 at 10:30, jewell@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

John and I tried Ft8 on our very dispersive 10GHz path just to see what it looked like. As expected, the spreading was far too great to get any decodes. No surprise there, but worth trying.

On JT9F fast (15 second) and auto sequence, the complete QSO was over almost before we realised what had happened!  Not very personal, but actually great fun to see in action.
It could be a good contest mode, allowing quick QSOs.

Most of the activity, last evening,  was on 23cm where the pace of the QSOs allows time to play with digital settings. 

73 de Sam, G4DDK





On Thursday, October 19, 2017, 10:11 am, Andy Talbot andy.g4jnt@... [ukmicrowaves] <ukmicrowaves@...> wrote:

 

FT8 is the latest mode designed for HF / 50MHz with 15 second cycle and fast turnaround - you need your wits about you to use it, hence the almost-automatic QSO structure and automated message box filling.

JT9 is a more conventional mode with some fast / wide spaced options that are technically better suited to uWaves 

'ANdy  G4JNT

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On 19 October 2017 at 08:49, Andy Talbot <andy.g4jnt@...> wrote:
Do you mean FT8 or JT9 ?

Very different modes

'jnt


On 18 October 2017 at 22:06, g4bao john@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

Hi Neil
I think we've discovered that Fast FT9 with auto seq is the "dB's" for 23cm digital!

Tnx for the QSOs.

Hope some more of you will join us next Wednesday night. Congregate on 1296.165 and KST.

Maybe we should have a "guess the mode' competition?

73
John

 

On 18 October 2017 at 21:08, Neil neil@... [ukmicrowaves] <ukmicrowaves@...> wrote:
 

If anyone would like to play, I am on 1296.167 in ISCAT-B but happy to try any digimode, even (gulp) FT8 like the smart kids.  KST and Twitter, or email for skeds.

Neil G4DBN


On 18/10/2017 19:43, g4bao john@... [ukmicrowaves] wrote:
 
Wednesday night is digital modes night.

Currently calling CQ on 1296.165 JT4F 2nd period




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