Topband: Beverage Feed Line Choke Installation

[Missouri Guy]

 > >Jumping in with both feet on the thread....
> >In my humble experience, common-mode chokes aren't 
> >really needed at all IF the antenna is disconnected from it's 
> matching
> >transformer and no Topband (or other frequencies of interest)
> >signals can be heard in the receiver.   Experiment!  :)
> 
> I don't agree. The antenna is part of the common mode circuit. 
> Disconnect it 
> and you have a different circuit. 
> 
> 73,
> 
> Jim K9YC

Jim, 

OK, different circuit....interesting.
I might try some A/B tests, such as remotely switching (battery,
wirelessly 
controlled) in/out a common mode choke while listening to the receiver.  
Other than that, how would I really know if the chokes are needed or
working?

73,
Charlie, N0TT