[CQ-Contest] radio interference

[Eric Scace K3NA]

Sounds like the transmitter's signal is getting into one of the receiver's last IF stages.

-----Original Message-----
From: cq-contest-bounces at contesting.com
[mailto:cq-contest-bounces at contesting.com]On Behalf Of Rick Dougherty
NQ4I
Sent: 2004 December 23 03:59
To: cq-contest
Subject: [CQ-Contest] radio interference


Hi all..I am sure that some one out there can assist on this one.....my 15 
mult antenna is on the same tower as the 20m 3 hi stack..i.e. its in the 
field of radiation...the operator on the 15m mult station hears the 20m 
station perfectly clear, no matter what frequency either station is tuned 
to...its some sort of if overload? I can greatly reduce the level of the 20m 
run station at the 15m mult by using a bandpass filter..I am also wondering 
if I put a 20m stub at the antenna feedpoint for the 15m station would that 
accomplish the same thing?? thanks and Happy Holidays de Rick nq4i 


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