TopBand: A different type of balanced feed.

[Dr. Stephen Andrew Wilson]

>THe vertical is about 100 ohms on AES Analyzer.  I hate to think
>about tuning 2 tuners at once, seperated by 900 feet.

>Any Ideas??

Dear Mike Michon, AB5XP,

If you have a 100 ohm antenna, then feed it with a 100 ohm balanced line. 
How?
Easy.  Take two paralel EQUAL LENGTH coax 50-ohm lines.  Connect the two
centers 
to the balanced outputs on your tuner and the 2 shields to ground.  At the
antenna end,
take the 2 shields and tie them together and to the ground rod.  Tie one
coax center
to the ground radial system and the other to the vertical.  I used the
double coax idea 
some years back on an 80-meter doublet and found that it was MUCH quieter
then 
open wire or ladder line on RX.
       
Hope this helps.

Stephen Wilson, XE1UFO


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