Thanks for the reference to Embedded Research, Mike. I ordered it today and
am looking forward to a kit arriving in the near future.
> If it doesn't already have it, add the model 220 SSB filter to your
> list. It is the 8-pole filter to replace the stock 4-pole filter. Of
> all the changes I've made to my Argosy rigs, this filter makes the
> biggest difference (even on CW, which is my only mode). Also know
> that the noise blanker requirements differ depending on the serial
> number of the rig.
> The audio filter is available as a kit from Embedded Research.
> http://www.embres.com http://www.embres.com/af224.htm
> 73, Mike N4NT