transverters-store.com 144-28 Transverter

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  • Updated 8 months ago
Anyone have any experience using this transverter with a FLEX?

http://transverters-store.com/144mhz.htm

It is $100 shipped, but you need to put it in a box with your own connectors and heat sink, etc.
It is Russian  or Ukrainian made, I think.

If they stink, does anyone have any better suggestions that won't break the bank?

Ken - NM9P
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Ken - NM9P

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  • curious

Posted 5 years ago

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Nick - W2NER

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Yes, I purchased one of them, great quality and it works great!  I would not hesitate. The one I purchased was for 220mhz but its basically the same board.  If I did not already have a 144mhz transverter, I would have purchased another one.

(Edited)
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Ken - NM9P, Elmer

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Thanks, Nick.
Am I correct that it doesn't include the heat sink?  How large does it need?  I have some here, but don't know if they are large enough, or too large...

Ken - NM9P
(Edited)
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Nick - W2NER

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Yes thats correct.  The heat sink you need is very small, not more then 2x2x3/16.  I got an extruded alum case and used the case as the heat sink.  Worked out perfect. 
(Edited)
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John

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Not with this one, but G4DDK has some transverter kits for sale on his website
http://www.g4ddk.com/ and they are of good reliable quality made by someone who knows his business.
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Nick - W2NER

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I have a Ten-Tec 2 meter transverter like new works as it should for sale..
(Edited)
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Nick - W2NER

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I also have a 220 transverter for sale as well.
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Ken - NM9P, Elmer

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Nick, What are you asking for the 2 meter transverter?  How does it's performance compare with the on on Transverters-store?
(Edited)
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Nick - W2NER

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Make me a reasonable offer and its yours.

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Nick - W2NER

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Oh the Ten-Tec is leaps better then the transverter store IMO..  This is all set and ready to go, no building anything.
(Edited)
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Nick - W2NER

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oh, its like brand new.
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Ken - NM9P, Elmer

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Is that your 1210 on Ebay?
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W2NER

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Yes it is
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Dale KB5VE

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How much
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philip.theis, Elmer

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Ken, first thing to consider is if the transverter has a single or dual port IF (I'm sure it's going to be 28MHz)
If it has two ports, one for tx and the other for rx, you may want to consider looking inside and seeing if it is easily modified to single port.
Another question, do you have other transverters?
Single port is easiest to interface to the single port on the Flex.
If it is dual port, and you don't want to modify the unit, then you will use a small relay to switch the single Flex XVTR port to the two ports on the transverter.
Next thing to consider is the power level needed to drive the transverter; hopefully is will take low level input, this is most desirable.
Last you will need to account for the PTT line.   If you are running only a single transverter then it will be simple.  For more that one transverter you may want to look into using the bias tee method to key PTT and let a single relay switch bands.
Some food for thought.
Congrats and welcome to the VHF world; some day when there is enhancement, we should be able to work.
Phil K3TUF
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John

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All mind boggling to those not used to the transverter scene. Long learning curve needed
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philip.theis, Elmer

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Not really; you aren't giving yourself enough credit.  It's fun.
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AA0KM

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Anybody have a finished transverter in the box? Website link or pictures would be most helpful.

Looking for Idea`s.

Thanks,73 Jeff

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David

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Down East Microwave has a lot of information. I seen some reference to Elecraft as well.
http://www.downeastmicrowave.com/
http://www.elecraft.com/XV/XV.htm
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David Scobie

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The inexpensive transverter works as shown here. 
It isn't a super stable fancy high power, yada, yada, .... but it does work and for a hundred bucks it is a good deal.  If you have  lots of cash, buy a DEM unit, as they are very good.
The one I just finished the other night receives over 10 MHz - This is with the preamp turned up to 20Db
HTH,
73 de va3ae
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David

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Can you take some photos of the set up showing cabling and connections? Being new to transverters a picture is worth a lot. A screen shot of your Radio Setup XVTR setting would be helpful too.

 This seems like a good solution for my first interest of have a way of getting on some 220 repeaters. Then exploring the other modes. Adding 2m and 70cm down the road and have it set up to use them remotely would ideal. One step at a time of course.
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Tim - W4TME, Customer Experience Manager

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Refer to Chapter 10 in the FLEX-6000 Hardware Reference Manual
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David

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The manual is good but seeing some actual photo of the transverter and the settings David has for his XVTR setup would still help me understand better.
(Edited)
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David Scobie

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I've literally just finished the transverter and the radio nor any peripherals are in the rack-case yet.  For your edification, this is what it looks like on the bench.
I will post more photos when things are complete in a week or two.
Dave
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David Scobie

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And here's one of the innards...
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David

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This is great information. Thank you for taking the time.
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John

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With all this transverter talk, I am wondering if anyone is selling 600m transverters with say 80m IF's  kits in the US ?
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Lee, Elmer

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Flex radios cover 600 M natively (472 khz) no need for transverter  It also covers 137 khz
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John

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Its not for use with the flex 1500 but my other rig.
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Andrew Russell

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Not a USA offering but vk3xdk sells one.
I started with a NE612 with 10MHz LO and 10 meg IF but now use Flex 1500 with filters and amp or a 6500 for 630M.

http://www.vk3xdk.net46.net/ de VK5 CV.
(Edited)
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John

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I did see that one, but the import duties + vat  make it a bit steep for my pocket. I can easily build one my the arthiritis is making it hard to build stuff nowdays.
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Andrew Russell

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Building filters and an amp for the Flex radios is the way to go. Then its all digital without the noise and distortion in older radios.

Andrew

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AA0KM

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http://stores.ebay.com/tubesshop/

PRE-BUILT NOW.

Sorry I had troubles posting above and I am late to this.

I see the pre-built are on http://transverters-store.com/assembled_tr.htm

I apologize I was not up to speed on this. Want a converter but waiting on Demi.

Sorry for any confusion I may have caused.

73 Jeff

(Edited)
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John Bailey

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Hello Flex users,

I bought one, tested on the bench with my sig gen and spectrum analyzer.  Works as advertised!
I love the xvtr integration with the 6300.  Don't push more than 2 Watts if you want linear operation.  Anything over will go into compression.  I use with a Mi Rage B310G.  Again anything over about 50 Watts is fine for FM, but not for linear operation.

Best, John KB1YFD
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John

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For those in the UK, g4ddk Sam, has transverter kits for sale from his webpages and not forgetting those sellers in Europe as well
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Philip KA4KOE

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Will it cover all of 2m?
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N3FRP

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Excellent review on K4DSP's youtube video. Share this video
http://youtu.be/w8JQ0SIUlI8
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Lee Maisel

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We don't need the attenuator option at all.
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Dolan Morrison

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Would this combination work with the Flex6300.
Mainly to be used for local repeater FM, and aurora work 2m ssb.
Gm0lze
R.M. LA 145 VHF MOBILE AMPLIFIER 85W (135-175MHz)
https://www.ebay.co.uk/itm/R-M-145-VHF-MOBILE-AMPLIFIER-85W-135-175MHz-/202282436957?hash=item2f18f9..
.

ASSEMBLED 144-28 TRANSVERTER IN BOX
http://transverters-store.com/assembled_tr.htm
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Ken - NM9P, Elmer

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I just bought the assembled 2m transverter last month and am still testing it.  I picked up a VHF/UHF watmeter at the Dayton/Xenia Hamvention so I can test power drive, etc.  

My first surprise was how sensitive the xvtr is to drive.  I have had to turn my XVTR port output WAY down to keep from running it at full blast (15 Watts).  I am trying to stay below 1.5 - 2 Watts for spectral purity, and it doesn't take much drive for that.  I have only made one SSB contact so far, but a lot of repeater work out to 40 miles with my beam at 45 ft.

I hope to do some July Tropo on 2 Meters this summer.

Ken - NM9P
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Bill -VA3WTB

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Ken, this has always interested me, I have thought of doing this for a while. Nice to hear what your learning and glad it is working well for you. Is there lots to set up to get this working?
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Larry - W8LLL

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I have one of the ukraine 144/432 transverters available if anyone is interested $60 shipped US.

I bought both DEMI 50 watt transverters and no longer need this. 

I also have a transverter store 432 that works good $50 shipped US.

And I have a 144 transverter store that works but developed an issue when it has been on for a while it will intermittenly go into transmit on its own. make an offer

https://www.ebay.com/itm/Dual-Band-144-432-to-28-MHz-ASSEMBLED-TRANSVERTER-VHF-UHF-28mhz/13244944682...


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wb7ond

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At FDIM this year J. Duffey, KK6MC gave an excellent presentation on adding UHF and VHF capability to your QRP station.  Out of that talk I saved a link that might be of interest to all who have the Converter-Store devices.  
http://www.nmvhf.org/Ukranian%20Transverter%20Transmit%20Performance.pdf
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John

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I think that the 30ppm Lo stability is really lacking and I agree with KK6MC's evaluation of these transverter.
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David G4NRT / Z21NRT

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I have just ordered one of these Ukrainian transverters (boxed without attenuator) for 2m.  I'd be very appreciative if someone who already has one could either post or email me a screen grab of their XVTRs Form in PowerSDR where they have configured it.

David G4NRT/Z21NRT
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Bill / VA3QB

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Did you ever receive yours ?  Their website is offline. 
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David G4NRT / Z21NRT

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Yes.  Received.  Works perfectly and I am very happy with it.  I have only used it to work via local repeaters and occasional simplex on S10 but I am happy enough for the price.  It is also a good size to carry both my Flex 1500 on business trips.
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Chris - NZ6T

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I've got the opposite opinion out of everyone here. I ordered one prebuilt.

Transmit worked great. Would not receive anything. I emailed to see if there was something internal that needed to be adjusted and got the response. "I test everything before shipping, I don't provide support" plugged it into another HF radio and got similar results. Transmit worked great, would not receive.

Finally I gave up and ordered a DEMI transverter and chalking the transverter store transverter as a loss.