[R-390] PSK-31

blw [email protected]
Sat, 19 Jan 2002 08:47:59 -0600


> Has anyone tried receiving PSK-31 on an R390A?  If so, how did you feed the
> sound card?  I was thinking of using the Line Output, but I don't know the
> impedence of the typical soundcard?  Are they lo-Z, hi-Z?  Would it matter all
> that much for PSK-31?  Would I be better off using the diode-load?
> 
> I assume the R390A will be stable enough for the task, but I don't know.
> Looking for advice.
> 
> 73,
> 
> Barry - N4BUQ

Barry,

I've not used sound in on a Windows computer, but I've been doing it on Macs
for a number of years now. I've run R-390A audio thru a 800-8 ohm
transformer directly into the Mac or into my stereo system and then into
Macs. Either way it is fine going directly into the computer. I don't recall
ever seeing a sound card for Macs, so I can't help you there.

I've tried audio from the radio to the Mac using a decoder program for
Windows under emulation. I only played with it a few minutes and never
actually got it to decode fax, WOLF, or code. I should go back and tinker
with it.

Audio from the A is very good and stable. I've never encountered any
problems compared to any other sound source. I do a lot of sound work from
video tapes, cassette, radio, FM stations, etc. Audio from the A is just
like all the others.



Barry