Date   

Re: For sale Kuhne 3.4GHz transverter

g4cch_1
 

The transverter is sold subject to completion of payment.

Next up will be a Kuhne 13cm G2, was built by me from a kit.

Will post info later with links to photo's

73, Howard G4CCH 


On 9cms now, if anyone is free

Nick Gregory G0HIK
 

As per the title, just worked GD1MIP and just wondering if anyone else is around.

G0HIK/P IO84


Hewlett Packard Tracking Generator 8443A on Ebay

Paul G8KFW
 

Hi all

 

There is a Hewlett Packard Tracking Generator 8443A on ebay  for £40  20 hrs left

 

nothing to do with me but I couldn’t even do the box for £30

 

Paul

No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.


--
Paul Bicknell G8KFW   South Coast UK


Re: SGLabs 3.4GHz delivery latest

Colin Ranson
 

Hi Nigel, yes I came on for 10 minutes in the last half hour of the AFS,  thanks for the report from Mersey Island, I was beaming west.

 

I will look out for you when up and running. I think I am going to have to revise my antenna positioning, difficult to explain why.

 

Best regards

 

Colin de G8LBS, Ipswich.

 

 

Sent from Mail for Windows 10

 

From: Nigel G8IFN
Sent: 06 December 2020 22:52
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] SGLabs 3.4GHz delivery latest

 

I am about 20 miles SSW from you and the others in the Ipswich area.
QTH is Mersea Island JO 01LS
my 9cm transverter was sent by BG post and has not yet arrived. I have got a 20dBi flat panel antenna ready and have a good takeoff from one of the front upstairs windows in the Ipswich direction. Heard Colin today on 2m obviously very loud.

On Sun, Dec 6, 2020 at 07:18 PM, SAM JEWELL wrote:

Colin,

It will be interesting to see how well it works over our 10-12km NLOS path with low/moderate power.

As far as I know, there is yourself, plus G3XDY and G4FSG locally. I am not sure G3LQR is operational any longer.

G4BAO is around 70km from me and I have worked him on 9cm a number of times, previously.

To the south, G4OGI in Kent, is active on 9cm. I am sure there are many others who are, are were, active within 100km of us.

Much, much, greater ranges are possible, of course, but it always helps to have someone local to test with, first.

 

73 de Sam, G4DDK


 
--
Nigel G8IFN

 


Re: SGLabs 3.4GHz delivery latest

Nigel G8IFN
 

I am about 20 miles SSW from you and the others in the Ipswich area.
QTH is Mersea Island JO 01LS
my 9cm transverter was sent by BG post and has not yet arrived. I have got a 20dBi flat panel antenna ready and have a good takeoff from one of the front upstairs windows in the Ipswich direction. Heard Colin today on 2m obviously very loud.


On Sun, Dec 6, 2020 at 07:18 PM, SAM JEWELL wrote:
Colin,
It will be interesting to see how well it works over our 10-12km NLOS path with low/moderate power.
As far as I know, there is yourself, plus G3XDY and G4FSG locally. I am not sure G3LQR is operational any longer.
G4BAO is around 70km from me and I have worked him on 9cm a number of times, previously.
To the south, G4OGI in Kent, is active on 9cm. I am sure there are many others who are, are were, active within 100km of us.
Much, much, greater ranges are possible, of course, but it always helps to have someone local to test with, first.
 
73 de Sam, G4DDK

 
--
Nigel G8IFN


Re: SGLabs 3.4GHz delivery latest

Neil Smith G4DBN
 

I suspect it will be a lot easier on 9 than on 3 Ben. Fingers crossed.

Neil G4DBN

On 6 Dec 2020 21:46, "militaryoperator via groups.io" <Military1944@...> wrote:

Looking forward to working everyone who has a shiny new 3.4 G transverter.
Neil G4DBN



Don't forget us old times Neil !! hi hi. 

Ben


Re: SGLabs 3.4GHz delivery latest

Neil Smith G4DBN
 

Well, it,'s CHEATIN' innit? All that Mathematics.

On 6 Dec 2020 21:33, Andy G4JNT <andy.g4jnt@...> wrote:
WHY WHY WHY ?
It's such a backward outlook




On Sun, 6 Dec 2020 at 21:28, Neil Smith G4DBN <neil@...> wrote:
On 06/12/2020 20:05, SAM JEWELL via groups.io wrote:

We are stuck with non-error-corrected modes in contests, .....



Iceni 70cm Transverter

Dave - G4RQI
 

Hello...

 

Does anyone have an Iceni 70cm Transverter kit they haven’t got round to building that they might like to part with?

 

Mail me at g4rqi@...

 

73 David – G4RQI

Sent from Mail for Windows 10

 


Re: SGLabs 3.4GHz delivery latest

militaryoperator
 


Looking forward to working everyone who has a shiny new 3.4 G transverter.
Neil G4DBN



Don't forget us old times Neil !! hi hi. 

Ben


Re: SGLabs 3.4GHz delivery latest

Andy G4JNT
 

WHY WHY WHY ?
It's such a backward outlook




On Sun, 6 Dec 2020 at 21:28, Neil Smith G4DBN <neil@...> wrote:
On 06/12/2020 20:05, SAM JEWELL via groups.io wrote:

We are stuck with non-error-corrected modes in contests, .....


Re: SGLabs 3.4GHz delivery latest

Neil Smith G4DBN
 

On 06/12/2020 20:05, SAM JEWELL via groups.io wrote:
I think much depend on how much attention is paid antennas and cables.
With an efficient (effective) antenna, even a bare SGLabs 2.5W and 1.7dB noise figure, (very) close to the feed will give some pretty good results on 'normal' troposcatter and anything (within reason) goes in a lift.
Adding a PA to the basic transverter, together with an LNA, complicates matters such that many may be put off. Not to mention the possible cost.......
Hence my interest in what might be possible with the basic transverter and an efficient antenna.
The idea of using digital modulation may not appeal, but could be another way to further increase range.  Especially if we could find an effective method of using it to rival the use of narrow FT8 mode on VHF.  This would probably not suit the contest guys.

We are stuck with non-error-corrected modes in contests, but ISCAT might be possible for aircraft scatter on SHF. JT6M might work, but not if the spreading is more than 20 Hz. Very slow CW will probably be just about as good. Outside contests, JT9E/F or QRA64 are probably optimal.  Really we need a wide-spaced extras-slow mode which will work when there is a lot of scintillation from troposcatter, so symbols of at least 3 seconds long, preferably 5-10 s.

I'm a fan of visual modes on VLF, so DFCW or QRSS FSK would get my vote for troposcatter DX on 9/6/3 cm.

Under the very very flat conditions right now on 3cm, I'm able to resolve GB3PKT at 240 km quite well with a long FFT, but it is far too weak to decode using JT4G. 30 second symbols would give near-perfect copy and can be read by eye. OK, it isn't going to be fast enough for contesting, but while we are pushing the limits, it is worth a try.

I should be on 3.4 properly in a couple of weeks and looking for tests via troposcatter, rainscatter, aircraft scatter and ducting.  5.7 is proving to be a dead loss with all of the appalling rural broadband backhaul links around here.  I mean, we have dratted VDSL in the village, so why would anyone choose 5.8G backhaul? Just means that 6cm as well as 80/40/30 m are all made useless.

Everyone waiting for 3.4 horns from me, I have my rotary welding positioner sorted at last and should be churning Super-VE4MAs out now I can rotate them while TIG welding the joints. I have some larger-diameter Rexolite 1422 in stock, so I'll be making a few lensed horns for 5.6 GHz. As well as being sealed against the weather, they can be mounted very close to other feedhorns for anyone wanting to experiment with a cluster of monoband feeds which can be selected by nodding or turning the dish a few degrees. I have another twenty or so 122 GHz antennas to finish first though, and a pile of heat-spreaders....

Looking forward to working everyone who has a shiny new 3.4 G transverter.

Neil G4DBN

This is the trace from PKT on 3cm just now in Spectrum Lab.

and here is it in WSJT-X JT4G mode.

On 06/12/2020 20:05, SAM JEWELL via groups.io wrote:
I think much depend on how much attention is paid antennas and cables.
With an efficient (effective) antenna, even a bare SGLabs 2.5W and 1.7dB noise figure, (very) close to the feed will give some pretty good results on 'normal' troposcatter and anything (within reason) goes in a lift.
Adding a PA to the basic transverter, together with an LNA, complicates matters such that many may be put off. Not to mention the possible cost.......
Hence my interest in what might be possible with the basic transverter and an efficient antenna.
The idea of using digital modulation may not appeal, but could be another way to further increase range.  Especially if we could find an effective method of using it to rival the use of narrow FT8 mode on VHF.  This would probably not suit the contest guys.


73 de Sam




On 6 Dec 2020, at 19:39, ian hope (2E0IJH) <ian@...> wrote:


9cm is somthing yet to dabble would be interested in your results, I have the 23 and 13cm SG labs units and the matching amps, but currently not active on them, until I replace the mast they were on, 
 
Ian
M5IJH
 
 
Sent: Sunday, December 06, 2020 at 7:18 PM
From: "SAM JEWELL via groups.io" <jewell@...>
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] SGLabs 3.4GHz delivery latest
Colin,
It will be interesting to see how well it works over our 10-12km NLOS path with low/moderate power.
As far as I know, there is yourself, plus G3XDY and G4FSG locally. I am not sure G3LQR is operational any longer.
G4BAO is around 70km from me and I have worked him on 9cm a number of times, previously.
To the south, G4OGI in Kent, is active on 9cm. I am sure there are many others who are, are were, active within 100km of us.
Much, much, greater ranges are possible, of course, but it always helps to have someone local to test with, first.
 
73 de Sam, G4DDK
 
 
 
 
 
 
 
On 6 Dec 2020, at 18:55, Colin Ranson <g8lbs@...> wrote:
 


Great stuff Sam !

 

Now engineering up a Hammond box here to match the other two SG-labs transverter and the Iceni.  It used to house a dual band Ukrainian transverter but the box was wasted on that ! I’ll pass that on to a local who can be bothered to use a proper mode.   Priority after that will be an ABS box tucked under the soffits on the shop side with amp/LNA in it

Beauty of 9cm is the smallness of antennas, I am going to try and re-engineer the 2.4GHz TP-Link feed for 9cm as one project, including getting the 73 ele QLY up. 

Father Xmas might bring me a suitable VNA soon as well.

 

Already mounted the supplied PCB antenna in the East facing window looking at you and John and Martleshambles.

 

Regards

 

Colin de G8LBS.

 

Sent from Mail for Windows 10

 

From: SAM JEWELL via groups.io
Sent: 06 December 2020 17:35
To: UKMicrowaves@groups.io
Subject: [UKMicrowaves] SGLabs 3.4GHz delivery latest

 

DPD are telling me my transverter will be delivered tomorrow.

Now I have to decide whether to use this one on terrestrial or reuse the G2 Kuhne one, but with the new, external, LO to keep it from drifting.........drift was a real pain, previously.

Reusing the Kuhne does have the advantage that it has a 2m IF and is already suitably boxed with LNA power feed, sequencing, etc.

The disadvantage is that I have to reengineer the EME system for a 70cm IF, using the SGLabs one.

Decisions........

Whichever way I choose, I hope to have something operational around Christmas, even if only low powered, to work the locals........at least three within 10km. And a local beacon to listen to. Plenty of incentive.

I do have a suitable linear, LNA and high gain QLY! but I don't see these re-entering service for a while longer.

 

73 de Sam, G4DDK

 

 

 

 


 

 

 

 

-- 
Neil
http://g4dbn.uk


Re: 3.4G feed horn dimensions ?

Nick Gregory G0HIK
 

On Sun, Dec 6, 2020 at 08:57 PM, militaryoperator wrote:
192858456314
Thanks Ben


Re: 3.4G feed horn dimensions ?

militaryoperator
 


ebay:  
192858456314



Subject: Re: [UKMicrowaves] 3.4G feed horn dimensions ?

Me also Ben,

Where do you get the copper tube from?

Nick G0HIK


Re: SGLabs 3.4GHz delivery latest

SAM JEWELL
 

As we know, Andy, the path between us works tolerably well, albeit with weak signals.
I am recovering from a shoulder problem. Once I have some strength back in my right arm, I will put something back on 9, be it the barefoot SGLabs, or the G2 Kuhne with PA.
Hopefully, fairly quickly.

73 de Sam



On 6 Dec 2020, at 20:13, Andy G4JNT <andy.g4jnt@...> wrote:


I'm still set up for that band after the last cumulative and can leave the antenna on the mast if someone wants to try for a JTxx  DX  KEWZO
I've got a reasonable take off to the NE from Near Southampton - especially now the trees have lost their leaves.



On Sun, 6 Dec 2020 at 20:05, SAM JEWELL via groups.io <jewell=btinternet.com@groups.io> wrote:
I think much depend on how much attention is paid antennas and cables.
With an efficient (effective) antenna, even a bare SGLabs 2.5W and 1.7dB noise figure, (very) close to the feed will give some pretty good results on 'normal' troposcatter and anything (within reason) goes in a lift.
Adding a PA to the basic transverter, together with an LNA, complicates matters such that many may be put off. Not to mention the possible cost.......
Hence my interest in what might be possible with the basic transverter and an efficient antenna.
The idea of using digital modulation may not appeal, but could be another way to further increase range.  Especially if we could find an effective method of using it to rival the use of narrow FT8 mode on VHF.  This would probably not suit the contest guys.


73 de Sam




On 6 Dec 2020, at 19:39, ian hope (2E0IJH) <ian@...> wrote:


9cm is somthing yet to dabble would be interested in your results, I have the 23 and 13cm SG labs units and the matching amps, but currently not active on them, until I replace the mast they were on, 
 
Ian
M5IJH
 
 
Sent: Sunday, December 06, 2020 at 7:18 PM
From: "SAM JEWELL via groups.io" <jewell=btinternet.com@groups.io>
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] SGLabs 3.4GHz delivery latest
Colin,
It will be interesting to see how well it works over our 10-12km NLOS path with low/moderate power.
As far as I know, there is yourself, plus G3XDY and G4FSG locally. I am not sure G3LQR is operational any longer.
G4BAO is around 70km from me and I have worked him on 9cm a number of times, previously.
To the south, G4OGI in Kent, is active on 9cm. I am sure there are many others who are, are were, active within 100km of us.
Much, much, greater ranges are possible, of course, but it always helps to have someone local to test with, first.
 
73 de Sam, G4DDK
 
 
 
 
 
 
 
On 6 Dec 2020, at 18:55, Colin Ranson <g8lbs@...> wrote:
 


Great stuff Sam !

 

Now engineering up a Hammond box here to match the other two SG-labs transverter and the Iceni.  It used to house a dual band Ukrainian transverter but the box was wasted on that ! I’ll pass that on to a local who can be bothered to use a proper mode.   Priority after that will be an ABS box tucked under the soffits on the shop side with amp/LNA in it

Beauty of 9cm is the smallness of antennas, I am going to try and re-engineer the 2.4GHz TP-Link feed for 9cm as one project, including getting the 73 ele QLY up. 

Father Xmas might bring me a suitable VNA soon as well.

 

Already mounted the supplied PCB antenna in the East facing window looking at you and John and Martleshambles.

 

Regards

 

Colin de G8LBS.

 

Sent from Mail for Windows 10

 

From: SAM JEWELL via groups.io
Sent: 06 December 2020 17:35
To: UKMicrowaves@groups.io
Subject: [UKMicrowaves] SGLabs 3.4GHz delivery latest

 

DPD are telling me my transverter will be delivered tomorrow.

Now I have to decide whether to use this one on terrestrial or reuse the G2 Kuhne one, but with the new, external, LO to keep it from drifting.........drift was a real pain, previously.

Reusing the Kuhne does have the advantage that it has a 2m IF and is already suitably boxed with LNA power feed, sequencing, etc.

The disadvantage is that I have to reengineer the EME system for a 70cm IF, using the SGLabs one.

Decisions........

Whichever way I choose, I hope to have something operational around Christmas, even if only low powered, to work the locals........at least three within 10km. And a local beacon to listen to. Plenty of incentive.

I do have a suitable linear, LNA and high gain QLY! but I don't see these re-entering service for a while longer.

 

73 de Sam, G4DDK

 

 

 

 


 

 

 

 


Re: 3.4G feed horn dimensions ?

Nick Gregory G0HIK
 

Once again, Thanks for the great info Neil.

Tried with GD1MIP a couple of times today, no joy yet. But I'm going to a 2000ft location tomorrow for another try, fingers crossed.

Nick G0HIK


Re: 3.4G feed horn dimensions ?

Nick Gregory G0HIK
 

Me also Ben,

Where do you get the copper tube from?

Nick G0HIK


Re: 3.4G feed horn dimensions ?

militaryoperator
 

uW’ers
 
Where does one acquire on of these white Chapparral thingys ?
 
Colin de G8LBS  ..... ....pondering different antennas for 9cm.


I got mine here:  113332867052


Ben


Re: SGLabs 3.4GHz delivery latest

ian hope (2E0IJH)
 

I normally have the 23 and 13 units,mast head mounted with the matching amps, so there's less than a metre of LMR 400 to the yagis, I have used the 23cm barefoot mast mounted, but found to get any further than essex across the water from gravesend I needed the amp, my QTH at gravesend is a little on the low side, 15 mins the other way you have wrotham area were Gb3VHF lives and totally different height
 
Ian
M5IJH

 
 
Sent: Sunday, December 06, 2020 at 8:05 PM
From: "SAM JEWELL via groups.io" <jewell@...>
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] SGLabs 3.4GHz delivery latest
I think much depend on how much attention is paid antennas and cables.
With an efficient (effective) antenna, even a bare SGLabs 2.5W and 1.7dB noise figure, (very) close to the feed will give some pretty good results on 'normal' troposcatter and anything (within reason) goes in a lift.
Adding a PA to the basic transverter, together with an LNA, complicates matters such that many may be put off. Not to mention the possible cost.......
Hence my interest in what might be possible with the basic transverter and an efficient antenna.
The idea of using digital modulation may not appeal, but could be another way to further increase range.  Especially if we could find an effective method of using it to rival the use of narrow FT8 mode on VHF.  This would probably not suit the contest guys.
 
 
73 de Sam
 
 
 
 
On 6 Dec 2020, at 19:39, ian hope (2E0IJH) <ian@...> wrote:
 

9cm is somthing yet to dabble would be interested in your results, I have the 23 and 13cm SG labs units and the matching amps, but currently not active on them, until I replace the mast they were on, 
 
Ian
M5IJH
 
 
Sent: Sunday, December 06, 2020 at 7:18 PM
From: "SAM JEWELL via groups.io" <jewell@...>
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] SGLabs 3.4GHz delivery latest
Colin,
It will be interesting to see how well it works over our 10-12km NLOS path with low/moderate power.
As far as I know, there is yourself, plus G3XDY and G4FSG locally. I am not sure G3LQR is operational any longer.
G4BAO is around 70km from me and I have worked him on 9cm a number of times, previously.
To the south, G4OGI in Kent, is active on 9cm. I am sure there are many others who are, are were, active within 100km of us.
Much, much, greater ranges are possible, of course, but it always helps to have someone local to test with, first.
 
73 de Sam, G4DDK
 
 
 
 
 
 
 
On 6 Dec 2020, at 18:55, Colin Ranson <g8lbs@...> wrote:
 


Great stuff Sam !

 

Now engineering up a Hammond box here to match the other two SG-labs transverter and the Iceni.  It used to house a dual band Ukrainian transverter but the box was wasted on that ! I’ll pass that on to a local who can be bothered to use a proper mode.   Priority after that will be an ABS box tucked under the soffits on the shop side with amp/LNA in it

Beauty of 9cm is the smallness of antennas, I am going to try and re-engineer the 2.4GHz TP-Link feed for 9cm as one project, including getting the 73 ele QLY up. 

Father Xmas might bring me a suitable VNA soon as well.

 

Already mounted the supplied PCB antenna in the East facing window looking at you and John and Martleshambles.

 

Regards

 

Colin de G8LBS.

 

Sent from Mail for Windows 10

 

From: SAM JEWELL via groups.io
Sent: 06 December 2020 17:35
To: UKMicrowaves@groups.io
Subject: [UKMicrowaves] SGLabs 3.4GHz delivery latest

 

DPD are telling me my transverter will be delivered tomorrow.

Now I have to decide whether to use this one on terrestrial or reuse the G2 Kuhne one, but with the new, external, LO to keep it from drifting.........drift was a real pain, previously.

Reusing the Kuhne does have the advantage that it has a 2m IF and is already suitably boxed with LNA power feed, sequencing, etc.

The disadvantage is that I have to reengineer the EME system for a 70cm IF, using the SGLabs one.

Decisions........

Whichever way I choose, I hope to have something operational around Christmas, even if only low powered, to work the locals........at least three within 10km. And a local beacon to listen to. Plenty of incentive.

I do have a suitable linear, LNA and high gain QLY! but I don't see these re-entering service for a while longer.

 

73 de Sam, G4DDK

 

 

 

 


 

 

 

 


Re: SGLabs 3.4GHz delivery latest

Andy G4JNT
 

and did once work 'BAO using JT65C



On Sun, 6 Dec 2020 at 20:13, Andy Talbot <andy.g4jnt@...> wrote:
I'm still set up for that band after the last cumulative and can leave the antenna on the mast if someone wants to try for a JTxx  DX  KEWZO
I've got a reasonable take off to the NE from Near Southampton - especially now the trees have lost their leaves.



On Sun, 6 Dec 2020 at 20:05, SAM JEWELL via groups.io <jewell=btinternet.com@groups.io> wrote:
I think much depend on how much attention is paid antennas and cables.
With an efficient (effective) antenna, even a bare SGLabs 2.5W and 1.7dB noise figure, (very) close to the feed will give some pretty good results on 'normal' troposcatter and anything (within reason) goes in a lift.
Adding a PA to the basic transverter, together with an LNA, complicates matters such that many may be put off. Not to mention the possible cost.......
Hence my interest in what might be possible with the basic transverter and an efficient antenna.
The idea of using digital modulation may not appeal, but could be another way to further increase range.  Especially if we could find an effective method of using it to rival the use of narrow FT8 mode on VHF.  This would probably not suit the contest guys.


73 de Sam




On 6 Dec 2020, at 19:39, ian hope (2E0IJH) <ian@...> wrote:


9cm is somthing yet to dabble would be interested in your results, I have the 23 and 13cm SG labs units and the matching amps, but currently not active on them, until I replace the mast they were on, 
 
Ian
M5IJH
 
 
Sent: Sunday, December 06, 2020 at 7:18 PM
From: "SAM JEWELL via groups.io" <jewell=btinternet.com@groups.io>
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] SGLabs 3.4GHz delivery latest
Colin,
It will be interesting to see how well it works over our 10-12km NLOS path with low/moderate power.
As far as I know, there is yourself, plus G3XDY and G4FSG locally. I am not sure G3LQR is operational any longer.
G4BAO is around 70km from me and I have worked him on 9cm a number of times, previously.
To the south, G4OGI in Kent, is active on 9cm. I am sure there are many others who are, are were, active within 100km of us.
Much, much, greater ranges are possible, of course, but it always helps to have someone local to test with, first.
 
73 de Sam, G4DDK
 
 
 
 
 
 
 
On 6 Dec 2020, at 18:55, Colin Ranson <g8lbs@...> wrote:
 


Great stuff Sam !

 

Now engineering up a Hammond box here to match the other two SG-labs transverter and the Iceni.  It used to house a dual band Ukrainian transverter but the box was wasted on that ! I’ll pass that on to a local who can be bothered to use a proper mode.   Priority after that will be an ABS box tucked under the soffits on the shop side with amp/LNA in it

Beauty of 9cm is the smallness of antennas, I am going to try and re-engineer the 2.4GHz TP-Link feed for 9cm as one project, including getting the 73 ele QLY up. 

Father Xmas might bring me a suitable VNA soon as well.

 

Already mounted the supplied PCB antenna in the East facing window looking at you and John and Martleshambles.

 

Regards

 

Colin de G8LBS.

 

Sent from Mail for Windows 10

 

From: SAM JEWELL via groups.io
Sent: 06 December 2020 17:35
To: UKMicrowaves@groups.io
Subject: [UKMicrowaves] SGLabs 3.4GHz delivery latest

 

DPD are telling me my transverter will be delivered tomorrow.

Now I have to decide whether to use this one on terrestrial or reuse the G2 Kuhne one, but with the new, external, LO to keep it from drifting.........drift was a real pain, previously.

Reusing the Kuhne does have the advantage that it has a 2m IF and is already suitably boxed with LNA power feed, sequencing, etc.

The disadvantage is that I have to reengineer the EME system for a 70cm IF, using the SGLabs one.

Decisions........

Whichever way I choose, I hope to have something operational around Christmas, even if only low powered, to work the locals........at least three within 10km. And a local beacon to listen to. Plenty of incentive.

I do have a suitable linear, LNA and high gain QLY! but I don't see these re-entering service for a while longer.

 

73 de Sam, G4DDK

 

 

 

 


 

 

 

 


Re: SGLabs 3.4GHz delivery latest

Andy G4JNT
 

I'm still set up for that band after the last cumulative and can leave the antenna on the mast if someone wants to try for a JTxx  DX  KEWZO
I've got a reasonable take off to the NE from Near Southampton - especially now the trees have lost their leaves.



On Sun, 6 Dec 2020 at 20:05, SAM JEWELL via groups.io <jewell=btinternet.com@groups.io> wrote:
I think much depend on how much attention is paid antennas and cables.
With an efficient (effective) antenna, even a bare SGLabs 2.5W and 1.7dB noise figure, (very) close to the feed will give some pretty good results on 'normal' troposcatter and anything (within reason) goes in a lift.
Adding a PA to the basic transverter, together with an LNA, complicates matters such that many may be put off. Not to mention the possible cost.......
Hence my interest in what might be possible with the basic transverter and an efficient antenna.
The idea of using digital modulation may not appeal, but could be another way to further increase range.  Especially if we could find an effective method of using it to rival the use of narrow FT8 mode on VHF.  This would probably not suit the contest guys.


73 de Sam




On 6 Dec 2020, at 19:39, ian hope (2E0IJH) <ian@...> wrote:


9cm is somthing yet to dabble would be interested in your results, I have the 23 and 13cm SG labs units and the matching amps, but currently not active on them, until I replace the mast they were on, 
 
Ian
M5IJH
 
 
Sent: Sunday, December 06, 2020 at 7:18 PM
From: "SAM JEWELL via groups.io" <jewell=btinternet.com@groups.io>
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] SGLabs 3.4GHz delivery latest
Colin,
It will be interesting to see how well it works over our 10-12km NLOS path with low/moderate power.
As far as I know, there is yourself, plus G3XDY and G4FSG locally. I am not sure G3LQR is operational any longer.
G4BAO is around 70km from me and I have worked him on 9cm a number of times, previously.
To the south, G4OGI in Kent, is active on 9cm. I am sure there are many others who are, are were, active within 100km of us.
Much, much, greater ranges are possible, of course, but it always helps to have someone local to test with, first.
 
73 de Sam, G4DDK
 
 
 
 
 
 
 
On 6 Dec 2020, at 18:55, Colin Ranson <g8lbs@...> wrote:
 


Great stuff Sam !

 

Now engineering up a Hammond box here to match the other two SG-labs transverter and the Iceni.  It used to house a dual band Ukrainian transverter but the box was wasted on that ! I’ll pass that on to a local who can be bothered to use a proper mode.   Priority after that will be an ABS box tucked under the soffits on the shop side with amp/LNA in it

Beauty of 9cm is the smallness of antennas, I am going to try and re-engineer the 2.4GHz TP-Link feed for 9cm as one project, including getting the 73 ele QLY up. 

Father Xmas might bring me a suitable VNA soon as well.

 

Already mounted the supplied PCB antenna in the East facing window looking at you and John and Martleshambles.

 

Regards

 

Colin de G8LBS.

 

Sent from Mail for Windows 10

 

From: SAM JEWELL via groups.io
Sent: 06 December 2020 17:35
To: UKMicrowaves@groups.io
Subject: [UKMicrowaves] SGLabs 3.4GHz delivery latest

 

DPD are telling me my transverter will be delivered tomorrow.

Now I have to decide whether to use this one on terrestrial or reuse the G2 Kuhne one, but with the new, external, LO to keep it from drifting.........drift was a real pain, previously.

Reusing the Kuhne does have the advantage that it has a 2m IF and is already suitably boxed with LNA power feed, sequencing, etc.

The disadvantage is that I have to reengineer the EME system for a 70cm IF, using the SGLabs one.

Decisions........

Whichever way I choose, I hope to have something operational around Christmas, even if only low powered, to work the locals........at least three within 10km. And a local beacon to listen to. Plenty of incentive.

I do have a suitable linear, LNA and high gain QLY! but I don't see these re-entering service for a while longer.

 

73 de Sam, G4DDK

 

 

 

 


 

 

 

 

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