2 METER TRANSVERTER OPTIONS

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I would like to enjoy my 6500 on 2 meters working SSB, Digital and FM. I've seen a few posts out there but can anyone recommend a few Transverter that will get me up and running without any  issues?
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Tony WV2C

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Posted 1 year ago

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Jd Dupuy

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Depends on your pocket book and how long you want to wait.

Kuhne -
http://shop.kuhne-electronic.de/kuhne/en/shop/amateur-radio/converter-transverte/transverter/TR+144+...

Expensive but the best in my book. I own 5 on different bands. Fast ship from Germany.

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

Cheap, might drift a bit but good field reports.

HA1YA - Two models 30 watt and 60 watt - http://www.ha1ya.hu/htmkepek/me2t_protransverterspec.htm

Down East Microwave - http://www.downeastmicrowave.com/category-s/1834.htm

Long wait time. Call for time.

Elecraft - http://www.elecraft.com/XV/XV.htm

if you like building.

Hope that helps  JD
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Ryan - NC4RA

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Great info JD !!
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Tony WV2C

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Thank you for the list!

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W3EX -- Tom

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I recently assembled the 144 MHz transverter from http://transverters-store.com/. I am getting ready to try to hook it up. That kit is not for the faint at heart in that there is very little information that comes with it. So if there is anyone out there that has the same kit I would appreciate hearing from you on the details of hooking it up to the Flex 6500.
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George Molnar, KF2T, Elmer

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Important point - confirm the unit is spec'd for the whole band. Many transverters are designed for just 2 MHz of the band (convert to 28-30 MHz).
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Jon - KF2E

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Are there any spec'd for the whole band? I've never seen one.
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Walt

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transverters-store.com

Technical specifications

RF range  -  144 ... 148 MHz
IF range  -  28 ... 32 MHz
IF input power  -  1 ... 50 mW (0.05 W max.) or 0 ... 17 dBm
LO frequency  -  116 MHz
LO frequency stability  -  +/- 3 ppm
Output power  -  10 W
RX gain  -  typ. 20 dB
Noise figure  -  typ. 1.0 dB
Image rejection  -  typ. 70 dB
PTT control  -  Contact closure to ground
Supply voltage  -  +13.8 V DC (+12 ... 14 V DC)
Current consumption  -  typ. 2 A (TX)
TX Output transistor  -  RD15HVF1
RX Input transistor  -  BF998
Dimensions (mm)  -  80 x 45


Cheers !
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Tony WV2C

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But a really nice unit...
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Walt

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oops !   Sorry - did not follow the thread properly to see that you were talking about a specific manufacture.

never mind . . .

'back to the pint'

Cheers


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Jon - KF2E

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I have one of these and the sensitivity drops dramatically beyond 146.
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Norm - W7CK

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Not to diss Flex but I'd recommend going with a radio that was designed to operate multiple modes on 2m.  It is much easier to work with a purpose built rig.  It will work out of the box and have far fewer wires and external parts and other associated equipment that would be needed for the Flex.  There are a number of multi mode HF-6, VHF, UHF rigs on the market these days.  Trying to get the 6000 series to work on VHF/UHF is doable but it costs a bit and will really not function as well as a dedicated "shack in a box" HF/VHF/UHF rig.
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Mike - W8MM

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Norm,

Adjusting the 2m frequency to dead-nuts only requires syncing to a 10 MHz frequency standard of one's choice.  I use the built-in GPS disciplined Flex accessory option.
(Edited)
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Norm - W7CK

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Mike,
I have a 6700.  How do you sync to a 10 MHz frequency standard?  For HF I do that through SmartSDR  through via the Settings, Radio Setup, RX, Frequency Offset.   The problem is that I don't see an independent Frequency Offset for 2m on the 6700.  I'm not using a Transverter, I'm using the built in 2m band in the 6700.
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Mike - W8MM

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http://www.flexradio.com/downloads/flex-6000-hardware-reference-manual-pdf/

Paragraph 7.5 on page 25 describes the specs for plugging in an external 10 MHz reference into the "10 MHz IN" RCA jack next to the ACC connector on the back panel.

I have my main 6700 equipped with the GPSDO option which is an internal reference that syncs frequency to GPS time.  All it needs is an external GPS antenna.  I have mine mounted on top of the rack enclosure that holds my 6700s.  It sees GPS signals through the roof of my garage loft FB.  So this 6700 is automatically locked to GPS frequency upon startup with no calibration required.

My other 6700 is synced to the first 6700's 10 MHz GPS frequency standard by connecting the "10 MHz OUT" SMA jack of the first 6700 to the second 6700's "10 MHz IN" RCA jack with an appropriate cable.  Paragraph 7.8 page 26.  The second 6700 automatically acquires the first 6700's reference when starting up.  No further effort required.
(Edited)
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George Molnar, KF2T, Elmer

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Quick 2 cents worth: Of course a precise 10 MHz reference, or better a GPSDO will net you right in on frequency all the way through 2 meters, but you can perform the built-in calibration routine on a higher frequency than the 10 MHz WWV default, and will likely see better resolution at 144 MHz. More parts per million millions of parts higher, after all.

I am very glad I purchased the GPSDO for my 6500. Installation was a snap and it's great peace of mind and operating ease (particularly for weak signal digital).

If CTCSS tones are bugging you (I can relate!) try building an RX EQ curve that rolls off below about 300 Hz. It will reduce the effect nicely. If the tone is still offensive, maybe a chat with the repeater operator is a next step. Some "sub audible" tones are anything but these days.
(Edited)
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Norm - W7CK

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I've used 10m 15m and others but 144 MHz is always off by quite a bit.  HF frequencies are spot on, but working folks on 144 MHz is embarrassing.  I'm never on frequency.  I have my doubts if a GPSDO would really correct the problem I'm experiencing.

Is anyone else using a Demi 2m Amp with a 6700 and having trouble being exactly on frequency?

Maybe I need to open a ticket.
(Edited)
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Tony WV2C

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Not sure what route I'm going to take right now but Thank you all for your comments.
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Ria - N2RJ, Elmer

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DEMI has them as well, just throwing that out there. No experience with them, though. 
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KENT HUFFORD

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This is the Ukrainian Transverter kits. Good YouTube on one

 

https://www.youtube.com/watch?v=w8JQ0SIUlI8&t=132s

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Lin N4YCI

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Just an update since the thread is still open.  DEMI sold their <900mhz transverter business to Q5 signals so if you want one of these high quality/dollar units here is the new link(hope this is OK)  http://www.q5signal.com/
Note: these have a 10mhz reference oscillator input, so if you have the built in GPSDO or an external 10mhz source (GPSDO, Rubidium ect) then you should be "dead nuts on"  I went with the Ukrainian  kit's new "high dynamic range".  It is stuck in JFK customs at the moment.  I will report back with how stable or unstable it is.  Not so much looking to use this on 2m FM as SSB paired with an amplifier I am mainly on 70cm DMR.
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Ben Sinclair

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If you don't mind building a kit, the Elecraft 2M transverter is very nice! I use one with my 6300.