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[Discuss-gnuradio] SDR in the HF band: a cheap solution.
From: |
Poul-Henning Kamp |
Subject: |
[Discuss-gnuradio] SDR in the HF band: a cheap solution. |
Date: |
Wed, 26 Jun 2002 15:06:01 +0200 |
TenTec makes a a cheap computer-controlled DSP receiver called RX-320.
The receiver widely acclaimed for its basic qualities, and as a user
I can only agree: it does work great.
In the context of SDR it has a special quality: a 3rd stage IF
frequency of 12 kHz.
Internally they use a normal sound-card class chip for digitizing
that IF so they can feed it to the DSP for demodulation.
It is perfectly feasible to "steal" that IF signal, plug it into
a PC's soundcard and do the demodulation yourself.
Full diagrams and technical information is available on the RX320
from TenTec's web-page.
Highly recommended as a way to play to SDR demodulation.
Poul-Henning
PS: TenTec also have a tranceiver version of the same design, but
I don't have a HAM license and am not interested in transmitting
anyway.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
address@hidden | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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