On Mon, 21 Mar 2005 21:04:47 -0600, Crazy George wrote:

Well, let me just post this at the bottom. RCA made a line of VHF TV transmitting antennas which were a slot arrays.
The only one I managed to get close to before it became airborne and clamped a thousand or more feet in the air was for
channel 9. It was 80 feet long (2 - forty foot sections) and was constructed exactly as Tom, K7ITM suggested, the phase
of the feed of each element was progressively changed, in this case, to effect 1.5° of downtilt. I would suggest
contacting RCA TV antenna engineering for their design parameters, but they seem to have gone somewhere.



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Crazy George
The attglobal.net address is a SPAM trap. Please change that part to: attdotbiz properly formatted.
"Matt" wrote in message ...
Is there anyway to down tilt the signal on horizontally polarized omni slot
antenna? I would like to add 1-3 degrees of downtilt.

Matt



We had 1 degree of down-tilt on the RCA Slot antenna for Channel 11.
Unfortunately I got the task of Replacing Slot covers on the antenna which
at the time was 15 years old. The antenna was retired 2 years ago, it was
33 years old...

I was 21, and stupid enough to climb a 1000' tower.



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Korbin Dallas
The name was changed to protect the guilty.