Topband: BC rejection using coax lines/stubs

[John Bastin]

On Jan 14, 2007, at 1:19 PM, Gary Nichols wrote:

> Hi gang, BX0ZR is having problems with intermod from broadcast  
> stations
> nearby.  Can anyone suggest or recommend an easy way to trap out a BC
> station.  They possibly have coax available for this purpose.  I  
> have not
> yet heard from them what freq the interference is on but any "how  
> to do"
> info would be valid and only need scaled to the proper freq.

An open quarter-wave stub of coax on the broadcast station frequency  
tee'd to the feedline should help.

Hope this helps.

73,


John Bastin K8AJS
bastinj at gmail.com