Re: [softrock40] Remoting received audio (was...Re: SDR app Software for RXTX6)
- It's not clear to be what you want to do. Do you want to
1) send the I/Q signals that go from the SR40 to the
computer over the INternet inreal time to be decoded
with SDR software at a remote location or,
2) Run the SDR software on a computer near the SR40
and then send the audio from that over the Internet
I think #1 would be hard to do. You need a very fast
Internet conectin at both your house and at the
hotel room. The first is expensive (on the order of
$1K/month) and the later is simply not going to happen
OK so #2. If that's the case then it's simply a matter
using a "sound device" that is not really a sound device
but a "pipe" of some kind. But still bandwidth is an
issue and the audio signal will need to be compressed
and you have to use VNC or X11 to send the display out
to the hotel room and that woud suck up bandwidth
from the audio stream. I doubt it could be made
to run smooth.
What I had though of doing was putting my SR40 on
the Internet. Kind of like a "web cam" but only it's
audio. So people would see a page updated every
second or so that displays a band scope (FFT)
display of the lower part of the 40M band. There
would be the normal web controls, drop down
boxes and so on to control the radio. and there
would a be button called "listen" that would cause
the audio to stream and send either static,
CW or whatever depending on how you had tuned.
I think the way to do this is to use standard HTML
forms and run the radio application as a CGI BIN
script in Python.
When I read the title, I thought you meant "remote"
as in a few hundred feet. My idea on that was to
place the SR40 closer to the antenna, loose most
of the feed like and then run 100 feet of audio
cable from ther SR40 to the sound card. I was
going to use CAT5 network cable to send the
audio. The stuff works well for this, better
even then audio coax if you use differential
drivers to send a balanced signal over a twisted
--- david feldman <wb0gaz@...> wrote:
> Thanks Chris,Chris Albertson
> I am actually interested in how to approach two separate problems,
> which can be solved alongside closed source SDR application, but
> would be
> smoother if integrated in some way:
Home: 310-376-1029 chrisalbertson90278@...
Office: 310-336-5189 Christopher.J.Albertson@...
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- At 04:54 AM 6/2/2007, Chris Albertson wrote:
>OK so #2. If that's the case then it's simply a matterIt's basically a remote base, so existing remote base solutions could
>using a "sound device" that is not really a sound device
>but a "pipe" of some kind. But still bandwidth is an
>issue and the audio signal will need to be compressed
>and you have to use VNC or X11 to send the display out
>to the hotel room and that woud suck up bandwidth
>from the audio stream. I doubt it could be made
>to run smooth.
be adapted, in theory. You wouldn't necessarily have frequency
control (not a biggie, because you can use VNC or similar for that
anyway), but you could get PTT and audio.
73 de VK3JED