SX-99 Mute

Glen Zook gzook at YAHOO.COM
Mon Apr 16 17:48:12 EDT 2007

You have to solder two wires to the "Mute/Receive"
switch and run them out the back.  Then leave the
switch in the "Mute" position and use a set of
normally closed contacts on a relay which go "open"
when transmitting which will mute the receiver.

I had to do this on my original S-85 receiver
(basically the same except for the "S" meter and
rudementary crystal filter) back in 1960.

Glen, K9STH

--- Bob Peters <rwpeters at SWBELL.NET> wrote:

Hay guys does the SX-99 have anyway to mute???  I do
not see anything in the manual for a mute...

Glen, K9STH


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