SG Labs 3400MHz Txvtr
SG Labs 3400MHz Txvtr
Hi All,
just received a SG Labs 3400MHz txvtr. From the factory, it will work 3398, with a 430MHz IF.
It seems possible to reprogram the LO, to work with a 435MHz, which I will attempt in the next few days.
Published Specs, are pretty much as per the 2400 txvtr; from my limited testing so far, on the bench, it appears to exceed expectations. Power out, ( on my unit ) with 2W of IF drive, gives slightly over 4W @ 3398, and dead on 4W @ 3400MHz.
Rx, out of the box, conversion gain was set at 8dB ( is adjustable ) and the difference in performance between 3398 & 3400 is too close to call.
The lead time at the moment for these, is about 6 weeks, so if you order one, be patient, it will arrive
Should be good for a portable or home station.
Regards
Peter vk3apw
just received a SG Labs 3400MHz txvtr. From the factory, it will work 3398, with a 430MHz IF.
It seems possible to reprogram the LO, to work with a 435MHz, which I will attempt in the next few days.
Published Specs, are pretty much as per the 2400 txvtr; from my limited testing so far, on the bench, it appears to exceed expectations. Power out, ( on my unit ) with 2W of IF drive, gives slightly over 4W @ 3398, and dead on 4W @ 3400MHz.
Rx, out of the box, conversion gain was set at 8dB ( is adjustable ) and the difference in performance between 3398 & 3400 is too close to call.
The lead time at the moment for these, is about 6 weeks, so if you order one, be patient, it will arrive
Should be good for a portable or home station.
Regards
Peter vk3apw
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Re: SG Labs 3400MHz Txvtr
Excellent Peter.
I only just saw this on here. I hope that this encourages more to get on 3.4 GHz.
What was the cost for this unit?
Hayden
I only just saw this on here. I hope that this encourages more to get on 3.4 GHz.
What was the cost for this unit?
Hayden
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Re: SG Labs 3400MHz Txvtr
Hristiyan reports that the 9cm transverter is 240 Euro +10 Euro for shipping to VK.
As of 04/09/19 the lead time is 4-5 weeks
As of 04/09/19 the lead time is 4-5 weeks
Re: SG Labs 3400MHz Txvtr
240 euro (~$390aud) is a bit of a jump compared to the 23/13cm versions.
I'm guessing things get more complex and part cost more as wavelength gets smaller!
They do look like a nice unit, perfect for field day ops.
I'm guessing things get more complex and part cost more as wavelength gets smaller!
They do look like a nice unit, perfect for field day ops.
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Re: SG Labs 3400MHz Txvtr
They are a good alternative if you don't want to mess with the panels or source an alternative 9cm unit.
I suppose MiniKits transverter is also a possibility. The 23cm transverter was 198 euro I think last time I checked, 13cm a bit more than that.
A constant complaint I've heard is "oh but we're losing the 9cm band so why bother". Well we haven't lost it yet, it's good for a little while and the more activity we get on it the better I say!
I suppose MiniKits transverter is also a possibility. The 23cm transverter was 198 euro I think last time I checked, 13cm a bit more than that.
A constant complaint I've heard is "oh but we're losing the 9cm band so why bother". Well we haven't lost it yet, it's good for a little while and the more activity we get on it the better I say!
Re: SG Labs 3400MHz Txvtr
All the more reason for those holding panels in their shack to pull their fingers out and get modifying. A small financial outlay and several hours of personal time expended to get on the air on 3398MHz. Once that's done you just need to ask and people will oblige for a contact.
Lou - VK3ALB
Being right doesn't excuse bad behaviour
Being right doesn't excuse bad behaviour
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Re: SG Labs 3400MHz Txvtr
Well said Lou!
We've heard that there is a small hoard of panels in VK5.... we need to get these modified ASAP.
Hayden
We've heard that there is a small hoard of panels in VK5.... we need to get these modified ASAP.
Hayden
Re: SG Labs 3400MHz Txvtr
If any of the "hoard" have a spare 1 or 6 they are not going to use, let me know.
The Western Sydney Microwave User Group would be very interested.
Hilary
The Western Sydney Microwave User Group would be very interested.
Hilary
Hilary - VK2AZ
Glenmore Park NSW
QF56IF31
Glenmore Park NSW
QF56IF31
Re: SG Labs 3400MHz Txvtr
Hayden,
I wasn't pointing at anyone in particular. Based on what I know of activity around the country, I'd say there's many out there that have not been converted.
Even if the band should be taken away, for the cost of a few hours labor many hams could get a taste of 3.4GHz right now. There is no time like the present.
I wasn't pointing at anyone in particular. Based on what I know of activity around the country, I'd say there's many out there that have not been converted.
Even if the band should be taken away, for the cost of a few hours labor many hams could get a taste of 3.4GHz right now. There is no time like the present.
Lou - VK3ALB
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Re: SG Labs 3400MHz Txvtr
Apologies Lou,
I actually was because it was told to us at Gippstech! I believe somewhere in VK5 there are quite a stockpile of panels, maybe 5ZT or 5ZD can confirm?
I'd be happy to get hold of a few and start some conversions.
Re: SG Labs 3400MHz Txvtr
Hi all,
I bought a 3.4GHz SG labs transverter for Christmas
I've taken some pictures of the transverter and put them in my photo share. Scroll to the end of the page to see them.
You can find them here...
https://photos.app.goo.gl/YZscxrT5ZRtYHUKAA
I've also made a couple of quick videos testing the transmit and receive abilities of the unit.
You can find those here...
https://www.youtube.com/channel/UCYCZzT ... 7oe9hovRvA
cheers
Tim
I bought a 3.4GHz SG labs transverter for Christmas
I've taken some pictures of the transverter and put them in my photo share. Scroll to the end of the page to see them.
You can find them here...
https://photos.app.goo.gl/YZscxrT5ZRtYHUKAA
I've also made a couple of quick videos testing the transmit and receive abilities of the unit.
You can find those here...
https://www.youtube.com/channel/UCYCZzT ... 7oe9hovRvA
cheers
Tim
--
VK2XAX :: QF56if23 :: BMARC :: WIA :: AMSAT-VK
VK2XAX :: QF56if23 :: BMARC :: WIA :: AMSAT-VK
Re: SG Labs 3400MHz Txvtr
Hi all,
I've just uploaded a video on how to program the SGlabs transverter to a different IF.
https://youtu.be/onsv-g3drx8
cheers
Tim
I've just uploaded a video on how to program the SGlabs transverter to a different IF.
https://youtu.be/onsv-g3drx8
cheers
Tim
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Re: SG Labs 3400MHz Txvtr
Excellent video Tim.
Simple clear and easy to follow. I’ll be reprogramming the IF of my transverter in the next few days.
Regards
Hayden
Simple clear and easy to follow. I’ll be reprogramming the IF of my transverter in the next few days.
Regards
Hayden
Re: SG Labs 3400MHz Txvtr
Hi all,
I've just uploaded a video where I test the PCB yagi that comes with the transverter, unfortunately the result is not good!
https://youtu.be/Etmd-Ye8TrQ
regards
Tim
I've just uploaded a video where I test the PCB yagi that comes with the transverter, unfortunately the result is not good!
https://youtu.be/Etmd-Ye8TrQ
regards
Tim
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Re: SG Labs 3400MHz Txvtr
I did similar sweeps of the 1296/2.4 version of the PCB yagis. They weren't that good.
The transverter works exceptionally well though, and giving 4W out, it's a nice little compact option for those wanting to get on the 3.4 GHz band. Use it or lose it!
The transverter works exceptionally well though, and giving 4W out, it's a nice little compact option for those wanting to get on the 3.4 GHz band. Use it or lose it!
Re: SG Labs 3400MHz Txvtr
Hristiyan sent me an email proposing changes to the Australian market for the LO frequencies.
"We decided to made a new frequency plan especially for VK. The new LO
frequencies are: 2968 , 2966, 2963 , 2960 MHz.
It is possible to switch between standard frequency plan and Australian
plan by a simple initialization procedure.
All tests are OK"
He is asking me to make any comments on this change.
They equate to: 3398 ==
430 MHz
432 MHz
435 MHz
438 MHz
Anyone have any comments?
Hilary
VK2AZ
"We decided to made a new frequency plan especially for VK. The new LO
frequencies are: 2968 , 2966, 2963 , 2960 MHz.
It is possible to switch between standard frequency plan and Australian
plan by a simple initialization procedure.
All tests are OK"
He is asking me to make any comments on this change.
They equate to: 3398 ==
430 MHz
432 MHz
435 MHz
438 MHz
Anyone have any comments?
Hilary
VK2AZ
Hilary - VK2AZ
Glenmore Park NSW
QF56IF31
Glenmore Park NSW
QF56IF31
Re: SG Labs 3400MHz Txvtr
Hi all,
The problem with the measurement of the 3.4GHz yagi was me.
I had negated to calibrate out the N to SMA adapter I was using on the yagi!
Rerunning the test shows a return loss of about -28dB @ ~3398 MHz.
I'll redo my little video
cheers
Tim
The problem with the measurement of the 3.4GHz yagi was me.
I had negated to calibrate out the N to SMA adapter I was using on the yagi!
Rerunning the test shows a return loss of about -28dB @ ~3398 MHz.
I'll redo my little video
cheers
Tim
--
VK2XAX :: QF56if23 :: BMARC :: WIA :: AMSAT-VK
VK2XAX :: QF56if23 :: BMARC :: WIA :: AMSAT-VK
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Re: SG Labs 3400MHz Txvtr
That's a little bit better result Tim!
Re: SG Labs 3400MHz Txvtr
Hi all,
My transverter is all boxed up and ready to go. Switchable 2w/20w.
I just have to put an antenna on the tower and its QSO time
cheers
Tim
My transverter is all boxed up and ready to go. Switchable 2w/20w.
I just have to put an antenna on the tower and its QSO time
cheers
Tim
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VK2XAX :: QF56if23 :: BMARC :: WIA :: AMSAT-VK
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Re: SG Labs 3400MHz Txvtr
Hi all,
My SGLabs 3.4Ghz Tvrtr boxed up with Stealth amp, switchable 2/20W also ready to go.
73 Darrell vk2bls
My SGLabs 3.4Ghz Tvrtr boxed up with Stealth amp, switchable 2/20W also ready to go.
73 Darrell vk2bls