Date   

Re: GB3KBQ

Adrian G4UVZ
 

Thanks both ...I think thatthe rainey season is on it's way again so that should help propogation!!

A


Re: Contest 7th March

Noel G8GTZ
 

I intend to be on 13 and 9cms from around 12 noon.

73
Noel - G8GTZ


Re: Mast head preamp box wanted

G8ZHA
 

Just what I need. Many thanks. Rich.

 

From: UKMicrowaves@groups.io [mailto:UKMicrowaves@groups.io] On Behalf Of Peter G3SMT via groups.io
Sent: 06 March 2021 16:49
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] Mast head preamp box wanted

 

Rich,

Have a look here :-  https://g3nyk.ham-radio-op.net/componen.htm

Alan has the enclosures that you are looking for and is most helpful.

73

Peter  G3SMT

 

On 06/03/2021 16:42, G8ZHA via groups.io wrote:

I am looking for a suitable box for a mast mounted preamp.

 

One such as the SHF-Electroink  type as shown on the attached picture.

 

I did manage to pick one up from a rally a few years ago – does anyone know who sells them?

 

Rich G8ZHA


--
Peter G3SMT


Re: Mast head preamp box wanted

Peter G3SMT
 

Rich,

Have a look here :-  https://g3nyk.ham-radio-op.net/componen.htm

Alan has the enclosures that you are looking for and is most helpful.

73

Peter  G3SMT


On 06/03/2021 16:42, G8ZHA via groups.io wrote:

I am looking for a suitable box for a mast mounted preamp.

 

One such as the SHF-Electroink  type as shown on the attached picture.

 

I did manage to pick one up from a rally a few years ago – does anyone know who sells them?

 

Rich G8ZHA


--
Peter G3SMT


Re: GB3OSW

geoffrey pike
 

Hi Peter,
Thanks for that, i seem to remember Tony mentioned it may be a problem, just need more reflective metal in the sky!
thanks
Geoff
GI0GDP


On Saturday, 6 March 2021, 11:01:14 GMT, Peter G3SMT via groups.io <peter.torry@...> wrote:


Hi Geoff,

I do have rising ground to the West of me and I do have some difficulty in working GI on 23cm so I would imagine that 10G reception would be rather remote unless there are some reflective paths.

Regards

Peter  G3SMT



On 06/03/2021 09:57, geoffrey pike via groups.io wrote:
How clear is its path to GI?
cheers
Geoff
GI0GDP

On Saturday, 6 March 2021, 08:19:37 GMT, Martyn G3UKV <ukv@...> wrote:


Re-send of yesterday's mail which didn't seem to arrive here . . . .
Martyn

-------- Forwarded Message --------
Subject: GB3OSW
Date: Fri, 5 Mar 2021 12:33:30 +0000
From: Martyn Vincent <ukv@...>
To: UKMicrowaves@groups.io


Welcome back beacon GB3OSW (IO82KV80) on 3cm - 10368.780 MHz.
Not many spotters so far on beaconspot.uk - so have a listen if possible.
Thanks Peter (G3SMT - beacon NoV).
73 Martyn G3UKV

Virus-free. www.avg.com

--
Peter G3SMT


Mast head preamp box wanted

G8ZHA
 

I am looking for a suitable box for a mast mounted preamp.

 

One such as the SHF-Electroink  type as shown on the attached picture.

 

I did manage to pick one up from a rally a few years ago – does anyone know who sells them?

 

Rich G8ZHA


Re: Nano VNA SAA-2N and G3XDY QRO filter

Dave G1EHF
 

The VNA SAA-2 series use the ADF4350 as source oscillators, which in theory will go to 4.4 GHz. Mine goes easily to 4 GHz, although the noise floor does start to increase above 3 GHz. That said, it can characterise a 9 cm filter or antenna easily if you're not after 70 dB of dynamic range!

73, Dave G1EHF


Re: GB3MCB current frequency?

Dave G1EHF
 

I intend to get GB3GCT installed and running once the COVID-related access restrictions are lifted from the tower.

It''ll be on 10368.935 MHz from IO91IJ51 and run PI4.

I'll announce on here when it's going.

73, Dave G1EHF


Re: GB3OSW

Peter G3SMT
 

Hi Geoff,

I do have rising ground to the West of me and I do have some difficulty in working GI on 23cm so I would imagine that 10G reception would be rather remote unless there are some reflective paths.

Regards

Peter  G3SMT



On 06/03/2021 09:57, geoffrey pike via groups.io wrote:
How clear is its path to GI?
cheers
Geoff
GI0GDP

On Saturday, 6 March 2021, 08:19:37 GMT, Martyn G3UKV <ukv@...> wrote:


Re-send of yesterday's mail which didn't seem to arrive here . . . .
Martyn

-------- Forwarded Message --------
Subject: GB3OSW
Date: Fri, 5 Mar 2021 12:33:30 +0000
From: Martyn Vincent <ukv@...>
To: UKMicrowaves@groups.io


Welcome back beacon GB3OSW (IO82KV80) on 3cm - 10368.780 MHz.
Not many spotters so far on beaconspot.uk - so have a listen if possible.
Thanks Peter (G3SMT - beacon NoV).
73 Martyn G3UKV

Virus-free. www.avg.com

--
Peter G3SMT


Re: GB3OSW

geoffrey pike
 

How clear is its path to GI?
cheers
Geoff
GI0GDP

On Saturday, 6 March 2021, 08:19:37 GMT, Martyn G3UKV <ukv@...> wrote:


Re-send of yesterday's mail which didn't seem to arrive here . . . .
Martyn

-------- Forwarded Message --------
Subject: GB3OSW
Date: Fri, 5 Mar 2021 12:33:30 +0000
From: Martyn Vincent <ukv@...>
To: UKMicrowaves@groups.io


Welcome back beacon GB3OSW (IO82KV80) on 3cm - 10368.780 MHz.
Not many spotters so far on beaconspot.uk - so have a listen if possible.
Thanks Peter (G3SMT - beacon NoV).
73 Martyn G3UKV

Virus-free. www.avg.com


GB3OSW

Martyn G3UKV
 

Re-send of yesterday's mail which didn't seem to arrive here . . . .
Martyn

-------- Forwarded Message --------
Subject: GB3OSW
Date: Fri, 5 Mar 2021 12:33:30 +0000
From: Martyn Vincent <ukv@...>
To: UKMicrowaves@groups.io


Welcome back beacon GB3OSW (IO82KV80) on 3cm - 10368.780 MHz.
Not many spotters so far on beaconspot.uk - so have a listen if possible.
Thanks Peter (G3SMT - beacon NoV).
73 Martyn G3UKV

Virus-free. www.avg.com


Contest 7th March

John Lemay
 

'Morning all

The UK Microwave Group has the first "Low Band" contest tomorrow; Sunday 7
March from 10:00 to 16:00. The Low Bands are 23, 13 and 9cms.

The first 4 hours coincide with an IARU event.

I'm planning to be active on all three bands throughout the contest period.
Hope to work many of you !

Regards

John G4ZTR
JO01KW


--
This email has been checked for viruses by AVG.
https://www.avg.com


Re: Nano VNA SAA-2N and G3XDY QRO filter

Alan Melia
 

Hi Colin, there was a good article in Dubus a year or two back by W1GHZ I think which explains what you can do and how to do it.
 
Alan
G3NYK
 

----- Original Message -----
Sent: Friday, March 05, 2021 10:57 PM
Subject: Re: [UKMicrowaves] Nano VNA SAA-2N and G3XDY QRO filter

Hi David, I got an SAA-2N about a month ago and other than charge it and turn it on I have done nothing with. It is complex for this old brain so I will need to clear the decks and condition myself to learning. I need to properly tune my 73ele Quad Loop Yagi for 3.4GHz as well as tune up a filter.

 

Regards

 

Colin de G8LBS.

 

Sent from Mail for Windows 10

 

From: david656179 via groups.io
Sent: 05 March 2021 18:39
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] Nano VNA SAA-2N and G3XDY QRO filter

 

Yes indeed a work of art and a very useful addition to the station.  Lucky you.   If I am lucky to live to get to another round table at Ipswich, I might well ask if John et al are able to check to see whether I did actually get them correctly set up. Roll on the day.

My main point was that this VNA was specification  to 3Ghz and yet I was using it up to 4GHz, which was a pleasant surprise.  I read somewhere that there are still later versions. I wonder if they also have ranges extended beyond the claimed maximum frequency range?

 


Re: Nano VNA SAA-2N and G3XDY QRO filter

Colin Ranson
 

Hi David, I got an SAA-2N about a month ago and other than charge it and turn it on I have done nothing with. It is complex for this old brain so I will need to clear the decks and condition myself to learning. I need to properly tune my 73ele Quad Loop Yagi for 3.4GHz as well as tune up a filter.

 

Regards

 

Colin de G8LBS.

 

Sent from Mail for Windows 10

 

From: david656179 via groups.io
Sent: 05 March 2021 18:39
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] Nano VNA SAA-2N and G3XDY QRO filter

 

Yes indeed a work of art and a very useful addition to the station.  Lucky you.   If I am lucky to live to get to another round table at Ipswich, I might well ask if John et al are able to check to see whether I did actually get them correctly set up. Roll on the day.

My main point was that this VNA was specification  to 3Ghz and yet I was using it up to 4GHz, which was a pleasant surprise.  I read somewhere that there are still later versions. I wonder if they also have ranges extended beyond the claimed maximum frequency range?

 


Re: GB3OSW

Neil Smith G4DBN
 

Nice signals from GB3OSW across the Pennines, decoding at -18dB but audible CWID. Two 1500 ft hills in the path don't seem to worry the RF at all.

Neil G4DBN


On 05/03/2021 15:52, Peter G3SMT via groups.io wrote:

Hi John,

Unfortunately the beacon issues coincided with me having an accident so I had to repair myself before tackling the beacon.

There were a number of minor issues with loss of gain from MMIC amplifiers reducing the drive levels but new chips restored the correct levels. What took some time was an intermittent issue traced to a 3 dB attenuator that would be OK one minute and then have a 30 dB loss the next so a new unit solved the issue.

73

Peter  G3SMT



GB3KBQ

Neil Smith G4DBN
 

No tropo tonight so far fom GB3KBQ, but I've seen some spectacularly strong aircraft scatter reflections.

Neil G4DBN

On 05/03/2021 14:23, Adrian G4UVZ via groups.io wrote:
GB3KBQ   10368.870 MHz Now back on air after rebuild of driver...Now radiating with JT4G modulation !

Beacon Keeper G4UVZ


Re: Nano VNA SAA-2N and G3XDY QRO filter

david656179
 

Yes indeed a work of art and a very useful addition to the station.  Lucky you.   If I am lucky to live to get to another round table at Ipswich, I might well ask if John et al are able to check to see whether I did actually get them correctly set up. Roll on the day.

My main point was that this VNA was specification  to 3Ghz and yet I was using it up to 4GHz, which was a pleasant surprise.  I read somewhere that there are still later versions. I wonder if they also have ranges extended beyond the claimed maximum frequency range?


Re: GB3OSW

John Fell
 

Thanks for  the reply Peter - will keep watch for GB3OSW .
Hope you are fully restored now 
Best 73
John
G0API

On Fri, 5 Mar 2021 at 15:52, Peter G3SMT via groups.io <peter.torry=talktalk.net@groups.io> wrote:

Hi John,

Unfortunately the beacon issues coincided with me having an accident so I had to repair myself before tackling the beacon.

There were a number of minor issues with loss of gain from MMIC amplifiers reducing the drive levels but new chips restored the correct levels. What took some time was an intermittent issue traced to a 3 dB attenuator that would be OK one minute and then have a 30 dB loss the next so a new unit solved the issue.

73

Peter  G3SMT


On 05/03/2021 14:12, John Fell wrote:
Hi Peter,
Thanks for doing the work - what was involved ?
Still looking for the first decode down here over the mountains ....
73
John
G0API

On Fri, 5 Mar 2021 at 12:52, Peter G3SMT via groups.io <peter.torry=talktalk.net@groups.io> wrote:

Martyn,

Thanks for the report. I was going to leave it a few days to ensure all was well before announcing its return and apologising for the length of time it was off the air but I will update beaconspot today.

73 

Peter   G3SMT


On 05/03/2021 12:33, Martyn G3UKV wrote:
Welcome back beacon GB3OSW (IO82KV80) on 3cm - 10368.780 MHz.
Not many spotters so far on beaconspot.uk - so have a listen if possible.
Thanks Peter (G3SMT - beacon NoV).
73 Martyn G3UKV

Virus-free. www.avg.com

--
Peter G3SMT

--
Peter G3SMT


Re: GB3OSW

Peter G3SMT
 

Hi John,

Unfortunately the beacon issues coincided with me having an accident so I had to repair myself before tackling the beacon.

There were a number of minor issues with loss of gain from MMIC amplifiers reducing the drive levels but new chips restored the correct levels. What took some time was an intermittent issue traced to a 3 dB attenuator that would be OK one minute and then have a 30 dB loss the next so a new unit solved the issue.

73

Peter  G3SMT


On 05/03/2021 14:12, John Fell wrote:
Hi Peter,
Thanks for doing the work - what was involved ?
Still looking for the first decode down here over the mountains ....
73
John
G0API

On Fri, 5 Mar 2021 at 12:52, Peter G3SMT via groups.io <peter.torry=talktalk.net@groups.io> wrote:

Martyn,

Thanks for the report. I was going to leave it a few days to ensure all was well before announcing its return and apologising for the length of time it was off the air but I will update beaconspot today.

73 

Peter   G3SMT


On 05/03/2021 12:33, Martyn G3UKV wrote:
Welcome back beacon GB3OSW (IO82KV80) on 3cm - 10368.780 MHz.
Not many spotters so far on beaconspot.uk - so have a listen if possible.
Thanks Peter (G3SMT - beacon NoV).
73 Martyn G3UKV

Virus-free. www.avg.com

--
Peter G3SMT

--
Peter G3SMT


Re: GB3MCB current frequency?

John Fell
 

Just peaked dish and GB3KBQ on a nice clear day with no rain on the map is at 40dB/noise floor in 11.7Hz RBW .Much too strong to get meaningful signal levels from the solid decodes .

73
John
G0API

On Fri, 5 Mar 2021 at 15:18, John Lemay <john@...> wrote:

Thanks Adrian

 

Copied here within a couple of minutes of listening. No decodes yet because most planes only provide 5 to 10 seconds of signal !

 

John G4ZTR

JO01KW

 

From: UKMicrowaves@groups.io [mailto:UKMicrowaves@groups.io] On Behalf Of Adrian G4UVZ via groups.io
Sent: 05 March 2021 14:24
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] GB3MCB current frequency?

 

GB3KBQ   10368.870 MHz Now back on air after rebuild of driver...Now radiating with JT4G modulation !

Beacon Keeper G4UVZ


Virus-free. www.avg.com

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