Date   

European solar outage season.

geojohnt@...
 

All,

Europe's autumn Eutelsat 10 A solar outage season has already started in southern Europe.
And here further north, we are about to experience it.

Regards,
John Tellick.
 


Re: Tellicast 'reset.'

Ernst Lobsiger
 

On Mon, Oct 5, 2020 at 07:00 AM, <geojohnt@...> wrote:
Ernst,
 
9 x Tellicast?!
Gosh.
John,

I'am currently testing the latest DVB-S2X PCIe cards. Normally I receive (T1 + T2) and use 3 TC clients
for BAS + HVS-1 + HVS-2. I pushed the new cards to their limits receiving 2 x (T1 + T2) = 4 transponders
using 6 TC clients and finally 3 x (T1 + T2) = 6 transponders using 9 TC clients (on old PC HW as usual).
6 EUMETCast transponders generates missed packets because the error correction (LDPC) cannot cope
with this bandwidth. 4 EUMETCast transponders runs fine. So EUMETSAT can start HVS-3 and HVS-4 ;-) .

Cheers,
Ernst
.


Re: Tellicast 'reset.'

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

David,

Happy Birthday!

I just thought this event went on for longer than the last one - in log file lines terms.
But then I wouldn't really know.

OK, I just used Word out of habit.

Regards,
John
============================

Thanks, John!

I wouldn't worry unless it happens more than - say - once a week.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Tellicast 'reset.'

geojohnt@...
 

Ernst,

9 x Tellicast?!
Gosh.

I'm not aware of having had this 'problem' in the past but may well have.
I run 24/7 on a single Windows 10 64, PC.

I've now experienced this twice in a couple of weeks - to my actual knowledge. 
Mind you, since my 'TC's starts up again automatically,' I may well not have noticed other occasions.

It was only seeing in the Tellicast HTML shell that it had 'reset' timewise - and the statistics, which sent me looking at the logs.

Yes, I know I could log and monitor all the computer/EUMETCast logs and parameters with a beautiful set of graphs - 'and pigs could fly?'

I'll start with moving the EKU to another port if I see the problem occurring regularly.

I should really obtain the new dongle and update TC but at the moment I'm doing some missed packet test for Ops so don't want to change anything.

Regards,
John.

  
++++++++++++++++++



-----Original Message-----
From: Ernst Lobsiger via groups.io <ernst.lobsiger@...>
To: MSG-1@groups.io
Sent: Sun, 4 Oct 2020 16:53
Subject: Re: [MSG-1] Tellicast 'reset.'

John

Last week I had a similar issue: When running 9 (!) instances of the latest TelliCast Client under GNU/Linux
I faced this "EToken transaction timeout" for the first time after all these years. It always occurred within
5 minutes from the start and I couldn't even properly stop the TC clients. I changed the USB port from
a port integrated with a Flash Card Reader to a port on the upper side of the workstation case. I also
switched the EKU from old (red) to to tiny (bright blue). This seems to have fixed the problem completely.

Maybe you can try to change the EKU USB port to begin with.


Ernst


Re: Tellicast 'reset.'

geojohnt@...
 

David,

Happy Birthday!

I just thought this event went on for longer than the last one - in log file lines terms.
But then I wouldn't really know.

OK, I just used Word out of habit.

Regards,
John

+++++++++++++++

At a quick glance I don't see anything unusual.


As soon as you ask EUMETSAT they may say please update to the current 
TelliCast.

BTW: use NotePad for plain text files, Word files are bigger.


Cheers,
David
-- 
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv

++++++++++++++++++++++++++++++

-----Original Message-----
From: David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺 via groups.io <david-taylor@...>
To: MSG-1@groups.io
Sent: Sun, 4 Oct 2020 16:40
Subject: Re: [MSG-1] Tellicast 'reset.'

David and Thorsten,

I had another TC auto reset last evening which prompted me to look back at
earlier posts.

I'm still using the original EKU with TC V2.14.4.
SNR OK - ~ 12.6 - 12.8 dB.

Last evenings event period logs attached.

Regards,
John.
========================








Re: Tellicast 'reset.'

Ernst Lobsiger
 

John

Last week I had a similar issue: When running 9 (!) instances of the latest TelliCast Client under GNU/Linux
I faced this "EToken transaction timeout" for the first time after all these years. It always occurred within
5 minutes from the start and I couldn't even properly stop the TC clients. I changed the USB port from
a port integrated with a Flash Card Reader to a port on the upper side of the workstation case. I also
switched the EKU from old (red) to to tiny (bright blue). This seems to have fixed the problem completely.

Maybe you can try to change the EKU USB port to begin with.

Ernst


Re: Tellicast 'reset.'

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

David and Thorsten,

I had another TC auto reset last evening which prompted me to look back at earlier posts.

I'm still using the original EKU with TC V2.14.4.
SNR OK - ~ 12.6 - 12.8 dB.

Last evenings event period logs attached.

Regards,
John.
========================

At a quick glance I don't see anything unusual.

As soon as you ask EUMETSAT they may say please update to the current TelliCast.

BTW: use NotePad for plain text files, Word files are bigger.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Tellicast 'reset.'

geojohnt@...
 

David and Thorsten,

I had another TC auto reset last evening which prompted me to look back at earlier posts.

I'm still using the original EKU with TC V2.14.4.
SNR OK - ~ 12.6 - 12.8 dB.

Last evenings event period logs attached.

Regards,
John.

+++++++++++++++++++++++

>Hi all,


>with Tellicast 2.14.6 I obseved a shutdown of dongle support after two consecutive dongle >errors. I have not seen this with older Tellicast versions.
>For several hours nothing was processed after this event. A restart of Tellicast was required.

>ERR:2020-08-24 12:55:29.505:eToken transaction timed out.
>ERR:2020-08-24 12:55:29.505:Critical dongle error (EToken transaction timed out). Dongle >support deactivated.

>Cheers,
>Thorsten

+++++++++++++++++

-----Original Message-----
From: David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺 via groups.io <david-taylor@...>
To: MSG-1@groups.io
Sent: Tue, 8 Sep 2020 15:17
Subject: Re: [MSG-1] Tellicast 'reset.'

David,

You were right - an EKU time out.

Specific BS and HVS-1 logs around that time of 'auto TC reset' - 2020-09-07
07:59:42 UTC attached.

Any idea of what caused that?
And, since I don't look at the log reports - and since TC resets itself
automatically - does this happen 'often?'

Regards,
John.
===========================================

John,

I'm glad that you've found the cause.

I found that when running one instance of TelliCast the timeout might not
trigger a restart, but with two instances a timeout almost always triggers
an automatic restart on both TelliCast instances.  Obviously if the restart
isn't triggered the result is much more obvious!

You could run Ernst's script nightly to produce a report every day for each
TelliCast instance where restarts would be much more obvious.  For example:

===============================================
Number of messages of category ERR: 2
ERR:2020-08-04 06:33:07.660:eToken transaction timed out.
ERR:2020-08-04 06:33:07.660:Critical dongle error (EToken transaction timed
out). Restarting child.
===============================================
Number of messages of category WRN: 0
===============================================
Number of messages of category MSG: 119538
===============================================
Number of *Starting* (what) events: 5
ERR:2020-08-04 06:33:07.660:Critical dongle error (EToken transaction timed
out). Restarting child.
MSG:2020-08-04 06:33:22.431:Watchdog child quits properly. Restarting.
MSG:2020-08-04 06:33:23.440:Starting new child...
MSG:2020-08-04 06:34:23.451:Starting new child...
MSG:2020-08-04 06:34:42.390:tc-cast-client starting... [6488]
===============================================

Do you come here often?  Perhaps about once every 2-3 months?  Not enough
experience with the new client and new bright blue shining eToken to say
whether that's better or worse.  Whether it's a faulty driver as Miguel
suggests, or simply a timing taken to extreme (when all the wrong things
happen at the same time) I don't know.

Ernst's script is here:

  https://www.satsignal.eu/software/TelliCast-utilities.html

It can save you a lot of work tracing through log files - my thanks for
Ernst and Arne for producing it.

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv



Re: Eumetsat Data Store

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Very interesting evolution in the distribution of satellite data of Eumetsat ( https://www.eumetsat.int/website/home/News/DAT_5207481.html )
We are all going to need very high speed internet connections ...

Regards,
Hugo
====================================

Hugo,

From the recent presentation, I understood that processing could either be carried out locally, or centrally at Darmstadt with just the results being sent to the end user. This is perhaps not dissimilar to what we already see with Copernicus data. Who pays for the CPU and other costs, and what limits may be imposed wasn't mentioned...

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Eumetsat Data Store

Hugo
 

Very interesting evolution in the distribution of satellite data of Eumetsat ( https://www.eumetsat.int/website/home/News/DAT_5207481.html )
We are all going to need very high speed internet connections ...

Regards,
Hugo


Re: Gaps in AVHRR images yesterday.

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

All bolts checked - only one needed tightening. Signal strength still 35 dBm, C/N now 10.7 dB _very_ marginal I would have thought.

Robert
====================================

Agreed, Robert, although there can be variations during the day. For comparison, Allan Gibbs is consistently getting around 12.0 dB with an Ayecka SR1 receiver, an 85 cm dish and ~30 m cable.

http://www.prescotpages.co.uk/networkstats/data/sr1-levels.html

He's seeing a signal level of -28..-27 dB.

http://www.prescotpages.co.uk/networkstats/data/sr1-sig.html

Makes me wonder about your signal level now, but I think you checked the cable recently. What I don't have to hand is a comparison of the numbers reported by the Ayecka and Novra boxes, they may be similar, and Frances Breame's tests showed operation at -41 dBm, so perhaps the cable is OK.

https://www.satsignal.eu/wxsat/dvb-s2/index.html

Time for a re-alignment?

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Gaps in AVHRR images yesterday.

Robert Moore
 

All bolts checked - only one needed tightening. Signal strength still 35 dBm, C/N now 10.7 dB _very_ marginal I would have thought.

Robert

-----Original Message-----
From: MSG-1@groups.io <MSG-1@groups.io> On Behalf Of David J Taylor GM8ARV ?????????????? ???? via groups.io
Sent: 28 September 2020 07:01
To: MSG-1@groups.io
Subject: Re: [MSG-1] Gaps in AVHRR images yesterday.

From: Robert Moore

OK I’ll hold fire on this until I’ve looked at other options. I don’t really want to lose HVS-1.

Robert
======================================

Robert,

You don't need to lose HVS-1 - get a second receiver and feed both from a splitter. Possibly someone on the group may have a spare or unused. If an IP receiver, you would need a further separate network input to your PC.

It's not clear from your screenshot, but I take it you /are/ using a separate network feed for the data from the Novra to your PC?

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Gaps in AVHRR images yesterday.

Robert Moore
 

Robert,

It's not clear from your screenshot, but I take it you /are/ using a separate network feed for the data from the Novra to your PC?

Cheers,
David

** Yes, I do use a separate network feed. The screenshot was copied from a notebook that I use to access the Novra, while the latter is disconnected from the receiver PC.
The dish is in a very exposed position, with the bracket in a tripod configuration to reduce shaking in the wind. I will get the lad who helps in the garden to check the bolts securing the bracket to the wall - they haven't been checked for a while.
Robert


Re: Gaps in AVHRR images yesterday.

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

From: Robert Moore

OK I’ll hold fire on this until I’ve looked at other options. I don’t really want to lose HVS-1.

Robert
======================================

Robert,

You don't need to lose HVS-1 - get a second receiver and feed both from a splitter. Possibly someone on the group may have a spare or unused. If an IP receiver, you would need a further separate network input to your PC.

It's not clear from your screenshot, but I take it you /are/ using a separate network feed for the data from the Novra to your PC?

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Gaps in AVHRR images yesterday.

David J Taylor GM8ARV 🏴󠁧󠁢󠁳󠁣󠁴󠁿 🇪🇺
 

Robert,

Aha, 'that more like it.'
The low SNR possibly causing your your more frequent gaps in data?

Regards,
John.
=================================

A stable 11 dB SNR is OK, but not if it's dipping below 10 dB. A slight misalignment in azimuth, elevation or LNB skew reduces the margin, and you may find that the screws holding the mounting into the wall can become loose with time. Mine need tweaking by a fraction of a turn about once a year, and that's just about my limit for reaching up (from a ladder).

Cheers,
David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@...
Twitter: @gm8arv


Re: Gaps in AVHRR images yesterday.

Robert Moore
 

OK I’ll hold fire on this until I’ve looked at other options. I don’t really want to lose HVS-1.

 

Robert

 

 

From: MSG-1@groups.io <MSG-1@groups.io> On Behalf Of Thorsten Miglus
Sent: 27 September 2020 15:30
To: MSG-1@groups.io
Subject: Re: [MSG-1] Gaps in AVHRR images yesterday.

 


Robert,

you can select the MODCOD for BASIC service only within the Satellite settings.

Cheers,
Thorsten


On Sun, Sep 27, 2020 at 03:39 PM, Ernst Lobsiger wrote:

Robert

If you take BASIC only you should be fine. But you have to set a MODCOD
filter for 8PSK 3/5 only or at least stop 16APSK 2/3. This is something
you should be able to do on the NOVRA. Thorsten might tell you how ...

Regards
Ernst


Re: Gaps in AVHRR images yesterday.

Thorsten Miglus
 


Robert,

you can select the MODCOD for BASIC service only within the Satellite settings.

Cheers,
Thorsten


On Sun, Sep 27, 2020 at 03:39 PM, Ernst Lobsiger wrote:
Robert

If you take BASIC only you should be fine. But you have to set a MODCOD
filter for 8PSK 3/5 only or at least stop 16APSK 2/3. This is something
you should be able to do on the NOVRA. Thorsten might tell you how ...

Regards
Ernst


Re: Gaps in AVHRR images yesterday.

Ernst Lobsiger
 

Robert

If you take BASIC only you should be fine. But you have to set a MODCOD
filter for 8PSK 3/5 only or at least stop 16APSK 2/3. This is something
you should be able to do on the NOVRA. Thorsten might tell you how ...

Regards
Ernst


Am 27.09.2020 15:16, schrieb Robert Moore:

Thanks John and Ernst, I didn’t appreciate that C/N of 18 was so
remarkable, I wish I taken the screenshot then! I’m not very good at
these things now – as I’ve often said, I’m only here to look at the
pictures.
I can’t tweak my dish as I no longer work up ladders. The dish is
getting a bit dirty, I suppose I could reach it with a spray of soapy
water and then hose it with fresh (or wait for the rain), but I don’t
know whether cleaning the dish would make much difference at all.
If I stopped taking HVS would I get any more consistent delivery of
Basic images?
All very frustrating at present.
I’ll have another look at TD15.
Robert
From: MSG-1@groups.io <MSG-1@groups.io> On Behalf Of geojohnt via groups.io
Sent: 27 September 2020 12:47
To: MSG-1@groups.io
Subject: Re: [MSG-1] Gaps in AVHRR images yesterday.
Robert,
Aha, 'that more like it.'
The low SNR possibly causing your your more frequent gaps in data?
Regards,
John.
+++++++++++++++++
-----Original Message-----
From: Robert Moore <rsmoore@...<mailto:rsmoore@...>>
To: 'MSG-1@groups.io' <MSG-1@groups.io<mailto:MSG-1@groups.io>>
Sent: Sat, 26 Sep 2020 20:36
Subject: Re: [MSG-1] Gaps in AVHRR images yesterday.
Maybe misreading the console Ernst. I've attached a screenshot - C/N
is 11 in this shot, it's been up and down.
Robert
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Re: Gaps in AVHRR images yesterday.

Robert Moore
 

Thanks John and Ernst, I didn’t appreciate that C/N of 18 was so remarkable, I wish I taken the screenshot then! I’m not very good at these things now – as I’ve often said, I’m only here to look at the pictures.

I can’t tweak my dish as I no longer work up ladders. The dish is getting a bit dirty, I suppose I could reach it with a spray of soapy water and then hose it with fresh (or wait for the rain), but I don’t know whether cleaning the dish would make much difference at all.

If I stopped taking HVS would I get any more consistent delivery of Basic images?

All very frustrating at present.

I’ll have another look at TD15.

 

 

Robert

 

 

From: MSG-1@groups.io <MSG-1@groups.io> On Behalf Of geojohnt via groups.io
Sent: 27 September 2020 12:47
To: MSG-1@groups.io
Subject: Re: [MSG-1] Gaps in AVHRR images yesterday.

 

Robert,

 

Aha, 'that more like it.'

The low SNR possibly causing your your more frequent gaps in data?

 

Regards,

John.

 

 

+++++++++++++++++

-----Original Message-----
From: Robert Moore <rsmoore@...>
To: 'MSG-1@groups.io' <MSG-1@groups.io>
Sent: Sat, 26 Sep 2020 20:36
Subject: Re: [MSG-1] Gaps in AVHRR images yesterday.

Maybe misreading the console Ernst. I've attached a screenshot - C/N is 11 in this shot, it's been up and down.


Robert

 

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Re: Gaps in AVHRR images yesterday.

geojohnt@...
 

Hello Ernst,

Thanks for your graphs, interesting.
Your figures pretty much reflect mine.
 
What size of dish do you have?

I've found my SNR has been a little higher the last couple of days???
This morning under cloud - but not that 'thick,' it's down (and up to 'normal') in frequent steps by several decimal points.

I haven't seen this lower level for several days now.

Regards,
John.

 
++++++++++++++++++++++++++


-----Original Message-----
From: Ernst Lobsiger via groups.io <ernst.lobsiger@...>
To: MSG-1@groups.io
Sent: Sat, 26 Sep 2020 21:06
Subject: Re: [MSG-1] Gaps in AVHRR images yesterday.

On Sat, Sep 26, 2020 at 12:36 PM, Robert Moore wrote:
Maybe misreading the console Ernst. I've attached a screenshot - C/N is 11 in this shot, it's been up and down
Robert

Don't pay too much attention to Signal Strength. This number is also hard to compare between different receiver types.

Your C/N = SNR = 11 dB is marginal for HVS-1 or HVS-2 reception. And as discussed before, this will also disturb BASIC.
You should have SNR = 12 - 13 dB. If this changes rapidly with big amplitude your dish could be fluttering in the wind (?).

Below is what I have right now taking 4 TC transponders with NO packet loss on a TBS-6908 V10 (manufactured 2014).

Cheers
Ernst