[Lowfer] Ten-Tec RX-320 Mods ?

[Steve Dove]

Hi Peter,

Frank's mixer-input transformer mod is still on the AMRAD site, but fairly well 
buried;  the direct link is:

http://www.amrad.org/projects/lf/rx/RX320LFMod.pdf

Additionally,  I've messed around with this fabulous-for-the-money radio quite a 
bit, and have some very simple mods for the front-end that dramatically improve 
the LF sensitivity.  If you get one, I'll gladly send you the details.

Stability is marginal for LF;  one would need to keep it in a temerature controlled 
zone.  The reason is the three crystals within it all affecting the outcome.

It is dissimilar to the SDR approach, in that it is quite a conventional receiver 
architecture with the exception that the last IF is centred at 12kHz and all 
filtering and demodulation done in a DSP chip, rather than making the Pentium 
in your PC think it's a DSP.

That said,  there'd be nothing to stop you taking the 12kHz IF output 
(conveniently on an RCA on the back of the 'D') and feeding it into the 
soundcard and having at it with SpecLab or Alberto's new program.

        All the best,

                Steve


12/18/2003 9:58:54 PM, "Peter Barick" <A20PJB1@wpo.cso.niu.edu> wrote:

>All,
>
>Was looking into the Ten-Tec RX-320D, a software, pc dependent radio,
>and remembered Frank Gentges was "promoting" this rx and some front end
>mods for improved LF performance, but can no longer find the ref. on the
>AMRAD page. The LWCA has an archived ref. for the mods. (2001?) but the
>link is dead.
>
>Anyway, is anyone using such an rx on LF or other insights on this?
>
>Is this similar to Lyle's down-converter and software approach
>(SDRadio) -- or on the same trail, at least?
>
>Peter