[CQ-Contest] ANOTHER CAUSE OF UNINTENDED DUPES

[Wilkowski,Joseph]

Tom N4KG is right on with this explanation.  Unfortunately it is one of 
 the prices you pay with most tranceivers.   Some tranceivers carrier 
 offset will track the cw tone control (bfo) but many do not.  Tom's 
 technique below will solve these problems.  As a matter of course my 
 RIT is on and working continously when I am on a run frequency as many 
 stations are as much as 200 cps below /above my xmit frequency. Which 
 in most tranceivers affects the passband filtering as well.  So you 
 must be frequecy agile in order to keep the received tone in your rx 
 passband and also pleasing to your ear.

/joe
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From: owner-cq-contest at contesting.com
To: CQ-CONTEST at CONTESTING.COM;  DX at VE7TCP.AMPR.ORG
Subject: [CQ-Contest] ANOTHER   CAUSE  OF  UNINTENDED   DUPES
Date: Thursday, January 29, 1998 5:40AM

<snip>
To determine your radio's offset, place the radio in TRANSMIT
while in the CW mode.  Set the VFO to read  XX00.0.  Switch
back to receive mode.   Turn on the calibrate signal
(if you have one, otherwise,  use  WWV).  If the received pitch
is NOT at your desired listening pitch, adjust the RIT or PITCH
control to bring the received signal to your preferred pitch.
Now your transmit frequency will be zero beat with the
received signal.  DO  NOT  tune the VFO during this adjustment.

<snip>
_


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