[TenTec] Antenna Tuner

[Jim Brown K9YC]

On Thu, 1 May 2008 23:40:37 +0000, Marinus Loewensteijn wrote:

>A balanced feed will always have the lowest losses, regardless what 
>antenna you hang at the end. You can even hang a vertical at the 
>end through a wideband balun. 

Not necessarily. There's some excellent work reported in one of the 
ARRL Antenna Compendiums showing that window line is quite lossy 
when it's wet. 

I suggest that you (and anyone else who thinks a balanced feedline 
makes a balanced antenna study my RFI tutorial and the associated 
Power Point on Coax Chokes. 

http://audiosystemsgroup.com/publish  

ANY antenna without a REALLY GOOD common mode choke at the feedpoint 
can be quite noisy on receive. It's not very practical to put ANY 
common mode choke on a balanced feedline, let alone a REALLY GOOD 
one. 

73,

Jim Brown K9YC