Hi, David,
From within Linrad, if you type 'S' this will generate a
full-bandwidth file that can be read and played back by Linrad. Typing
'S' starts file recording, typing 'S' again stops it. There is a tiny
'S' in the right corner of the main window to show that recording is
underway.
As you noted, the Linrad wav files just record the audio output from
Linrad, which is of course dependent on your output sampling rate,
filter settings, etc.
When I need a full-bandwidth wav file, I use CoolEdit 96 to record the
stereo inputs [I/Q] from the Delta44 directly. CoolEdit 96 doesn't
give 96000 Hz as one of the bandwidth choices, but if you type in 96000
as the desired bandwidth, it works fine sampling at 96000 Hz. 48000
works, too. I don't recall if that is one of the offered choices or if
you also have to type it in. These wav files can then be played back
by Linrad or any other SDR that accepts wave files, or treated like any
other wav file by any program you wish.
CoolEdit is now Adobe Audition, but I have continued to use CoolEdit as
the price is right and it does everything I need it to do.
I downloaded CoolEdit years ago, but I believe you can still download
it [Google it}. Here is one site that Google produced:
http://www.threechords.com/hammerhead/cool_edit_96.shtml
I can provide no warranties or assurances regarding the site, however ;)
Hope that helps, and
73,
W3SZ
Roger Rehr
http://www.nitehawk.com/w3sz
Quoting David Underwood <[EMAIL PROTECTED]>:
I need to find a way to record the full bandwidth of I and Q channels
from a delta 44 into linrad in wav files. (48 KHz each). This is for
analysis of
signals to discriminate between meteor scatter and cosmic ray scatter.
Existing programs only analyze wav files.
The receiver at the moment is a softrock 6.0 at 10.7 MHz
fed from the IF of an Icom 1000 at 50-70 MHz.
(although this doesn't matter for wav files)
So far the wav files I have made appear to contain a narrow bandwidth,
and have some kind of reflection. I used a binary dump program to look
at the files and found every other byte was 0xFF.
I tried something similar with Speclab program in windows.
(dual boot computer, same hardware)
The wav files make more sense, but there are other problems
with the software, asio drivers, no audio out, displays not as useful etc.
Any suggestions would be appreciated.
David Underwood
K0IMH
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Roger Rehr
W3SZ
http://www.nitehawk.com/w3sz
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