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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.


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

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