[TowerTalk] Distance Between Towers

[Don Moman VE6JY]

If you can place them anywhere, I'm not sure a circle / semi-circle
approach is best. Certainly for coax usage, but not from a RF viewpoint.
Lots of things happen to aggravate RF issues between stations when
antennas beam at each other.   So if you can keep things more in a
straight line - assuming there is a line you rarely would beam along -
that might be the better choice.   If I could do it again, I'd have my
towers more in a line along  160-340 degrees....  That would let me beam
into virtually all the directions I consider "contest important" areas
without looking directly into another tower.

73 Don
VE6JY

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Keith Dutson
Sent: January 2, 2007 4:19 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Distance Between Towers


Over the holidays some measurements were made on the land cleared to the
north of the shack for the proposed antenna farm.  New towers will be
added for 80/10 (140'), 40/WARC (200'), 20 (150') and 15 (120').  There
is an existing 150' tower with stacked tri-banders, located about 30
feet north of the shack.

I have a vision of the four new towers fanned out in a semi-circle
around the shack.  This will allow the shortest feed line and control
cable runs. I need advice on how far to place each of these towers from
the existing tower to ensure interference-free operation.

Thanks in advance for your suggestions.

73, Keith NM5G

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