[R-390] SDR

[Curt Nixon]

THe only real problem is how much bandwidth do you "see" in the IF out.  
A Softrock set-up right after the first mixer, before any IF filtering 
lets and you see 100Khz or more of the band at once.

It sure is nice tho...even to see what is a few Khz up or down from your 
set.

I use a SR on my Drake A and B line as a panadapter--works well and Is 
really useful.  Comes out right after the first mixer.  THe technology 
is amazing.  There are guys using those 100 dollar Fun Cube Dongles for 
2M EME!!   It doesn't get much more demanding on a receiver than 
that--at least noise and sensitivity-wise.

FWIW

Curt
KU8L

On 2/19/2013 3:47 PM, quartz55 wrote:
> I've already mixed the 455 from the R390A IF down to 12KHz, with a 467KHz oscillator (+7dbm) and an SRA-3 mixer to feed my Soundblaster and running 'Dream' on the computer.  Seems to work pretty much like the SoftRock, without the SoftRock radio. On my 3GHZ Athalon, I do get a bit of delay, and it was nice to see the numbers with the MGC levels in the article.  I haven't done any extensive testing with the setup, but it decoded CW, AM, SSB (both), FM, however I haven't gotten the RDM to work yet.  If anyone else has tried 'Dream', I'd like to compare notes.
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