SG Labs 3400MHz Txvtr

23cm, 2.4/3.4/5.7/10/24/47 GHz and above - antennas, propagation, operating, etc. Includes Optical communications, with light,
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VK3APW
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SG Labs 3400MHz Txvtr

Post by VK3APW » Tue Aug 13, 2019 7:17 pm

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 :D
Should be good for a portable or home station.

Regards

Peter vk3apw
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VK7HH
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Re: SG Labs 3400MHz Txvtr

Post by VK7HH » Fri Aug 30, 2019 11:01 am

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

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Re: SG Labs 3400MHz Txvtr

Post by VK7HH » Wed Sep 04, 2019 3:04 pm

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

VK1JA
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Re: SG Labs 3400MHz Txvtr

Post by VK1JA » Wed Sep 04, 2019 4:20 pm

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.

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Re: SG Labs 3400MHz Txvtr

Post by VK7HH » Wed Sep 04, 2019 4:40 pm

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!

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VK3ALB
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Re: SG Labs 3400MHz Txvtr

Post by VK3ALB » Wed Sep 04, 2019 10:25 pm

VK7HH wrote:
Wed Sep 04, 2019 4:40 pm
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!
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

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Re: SG Labs 3400MHz Txvtr

Post by VK7HH » Thu Sep 05, 2019 10:23 am

Well said Lou!

We've heard that there is a small hoard of panels in VK5.... we need to get these modified ASAP.

Hayden

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Re: SG Labs 3400MHz Txvtr

Post by VK2AZ » Thu Sep 05, 2019 4:30 pm

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
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VK3ALB
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Re: SG Labs 3400MHz Txvtr

Post by VK3ALB » Thu Sep 05, 2019 7:42 pm

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.
Lou - VK3ALB

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Re: SG Labs 3400MHz Txvtr

Post by VK7HH » Thu Sep 05, 2019 7:51 pm

VK3ALB wrote:
Thu Sep 05, 2019 7:42 pm
I wasn't pointing at anyone in particular.
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.

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