Topband: 1.810 BCB interference

[Tom Rauch]

> Peter, I would like you to do one more check. The next 
> time you are copying
> the KXEX programming on 1810, please go to 1680 and see if 
> you can copy
> KAVT. If you can copy KAVT, this would prove who the 
> offender is. It is the
> KXEX signal being fed back into and rebroadcast by the 
> KAVT transmitter.

That won't work!! It isn't necessary!!

The IM product you hear:

1.) Is on a clear frequency.

2.) Is on a higher frequency where propagation is better.

3.) Is NOT being broadcast with the same antenna pattern. 
(The array at the broadcast station will not have even close 
to the same pattern on 1.81 MHz as it has in the AM BC 
band.)

The only time we want to listen to the main signals is to do 
an audio match when searching for the unknown offending 
station and to prove it can be a receiving system problem. 
If you hear a 50 over nine signal from both stations it 
might be mixing in the receiver or the receiving antenna, 
but if  you can't hear the main signal it doesn't mean a 
thing.

73 Tom