Re: Binaural CW Reception

[Sverre Holm-2]

After having read the interesting thread about binaural CW and pseudo-stereo
I found these two descriptions of analog circuits that are fairly simple to
build. The most advanced one is by VE3VXO:
http://www.arsqrp.com/ars/pages/back_issues/2001_text/0501_text/street.html
. It has both phasing and loww/high-pass separation. A simpler one with only
filters is SM0VPS's circuit http://www.g3ycc.karoo.net/stereorx.htm

It would be nice though to find a TDA3810 pseudo-stereo IC and build a
circuit around it as Benny, OH9NB, suggested a couple of days ago.

Finally a digital alternative for a PC in MultiPSK, http://f6cte.free.fr/ .
Binaural CW is one of the free features in this program. I tried it but my
PC seems to be a bit on the slow side for this function, at least with the
default filter length.


73

Sverre
LA3ZA
http://www.qslnet.de/la3za/
 

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[Ingo Meyer DK3RED]

Hello Sverre,

> It would be nice though to find a TDA3810 pseudo-stereo IC and build a
> circuit around it as Benny, OH9NB, suggested a couple of days ago.

A (not the) source for the TDA3810 is "Segor Electronics" (www.segor.de) in
Berlin/Germany. Type in "TDA3810" in the upper left corner and mark "nur Text" and click
on the button. I don't know if "Segor Electronics" send ICs outside Germany. Please ask
the crew via [hidden email]. 1 IC for 2.50 Euro, 10 or more ICs for 2.00 Euro.
--
72/73 de Ingo, DK3RED - Don't forget: the fun is the power!

    [hidden email] - www.dk3red.homepage.t-online.de
      DL-QRP-AG   #824 - www.dl-qrp-ag.de
       QRP ARCI #11295 - www.qrparci.org
         DARC #2360404 - www.darc.de

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