[Towertalk] Shunt Feed Tower

[Pete Smith]

At 06:45 PM 22-10-2002, N8DE wrote:
>Yes,
>Shorten the shunt wire [gamma] to about 45 feet.
>All that hardware on top of the tower makes the tower look very long to
>the feedline!
>Not exactly sure what capacitance will tune it at that gamma length,
>but, if you used an antenna analyzer, you'd get it right in not much
>time at all !

Well, I dunno... I went through a long and painful process of trying to 
find a point on my similarly loaded tower that would give 50 ohms when fed 
with a shunt wire and a series capacitor.  Never did.  Finally, I added a 
second capacitor for an omega-match configuration, and had a 1:1 match at 
1830 in about 10 minutes.

73, Pete N4ZR
Sometimes a tower is just a tower