[NLRS] 2m IF rig quest

[Thomas Murphy]

That probably leaves only the IC-705 (since a 905 would be most 
everything or you're after a companion to fill in the Region 2 bands 
with transverters). A 9700 would likewise also be out of your desired 
specs. The upcoming Yaesu FTX-1F QRP is pre-release marketed as 
supporting single-USB CAT/audio/TX, if you're interested in getting on 
the reservation list for that whenever it comes available.

For headless radios, I see that the Expert Electronics SunSDR2 base and 
PRO models offer 8 W on 144. Unfortunately the QRP version foregoes the 
2m capabilities. That they are a Russian-based company might make them 
less attractive for a new build right now. Most other 
direct-sampling/direct-synthesizing SDRs seem to cap out at 6 or 4m 
without doing Nyquist folding (with extra filters) and having a fast 
enough DAC.

Something like the ADALM-Pluto you might as well build completely around 
rather than going the IF route given its minimal filters and power. I 
also can't tell how friendly of interfaces are available for it once 
you're on a PC.

And, since it came up in a search, the DSP-10 
(https://www.janbob.com/electron/dsp10/dsp10.htm) is presumably the 
thing you really don't want. A kit project developed in the '90s that 
would probably be best only for inspiration to design something with 
newer parts these days.

- Thomas / WN1C

On 3/25/25 11:46, Jon Platt via NLRS wrote:
> Hello NLRS land
>
> Checking in with the brain trust here.  I am in the search for a 
> "radio" to use as my microwave IF rig.  It needs to have 2m (2m only 
> is OK), QRP preferred, with the desire to have an internal sound 
> card/USB feature to reduce the number of boxes needed when doing 
> digital from the rover.  It appears to be a limited field. Not 
> breaking the bank would be nice too.   A FT 818 or 817 sort of fits 
> the bill but they dont have an internal sound card.   I hate all the 
> boxes and cables when I rove, prefer the KISS approach.
>
> Any ideas out there?
>
> 73, Jon
> W0ZQ
>
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