[AMRadio] SX-99 Mute

Bill Smith hbco2 at sbcglobal.net
Mon Apr 16 18:48:37 EDT 2007

Put a t/r relay in the antenna, and switch the speaker.  Remember to switch
in a resistor load in place of the speaker.   I think the SX-99 has 500 ohm
and 8 ohm outputs, you might bridge a 680 ohm resistor across the receiver's
high impedance terminals.

You should be feeding the receiver's 300 ohm balanced antenna input with a
balun.  You will enjoy a noticeable reduction in noise and increase in
spurious signal rejection.

73 de Bill, ab6mt
hbco2 at sbcglobal.net

----- Original Message ----- 
From: "Bob Peters" <rwpeters at swbell.net>
To: "AM" <amradio at mailman.qth.net>; "Boatanchors"
<boatanchors at listserv.tempe.gov>
Sent: Monday, April 16, 2007 2:03 PM
Subject: [AMRadio] SX-99 Mute

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


Very Best 73's
Bob W1PE
The Voice of Mesquite

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