[TowerTalk] inverted L tower mounting

[donovanf at starpower.net]

Will,

Have you considered suspending an inverted-L, or a T vertical, between your towers?

Unfortunately, you're likely to have parasitic effects between any
vertical and your two towers, both of which may be resonant near 160 meters.  Some modelling is in order to better understand the likely
radiation pattern.

If you use a T vertical, be sure the horizontal part of the  T is non-resonant length on the HF bands!  A good non-resonant length would be
44 ft.

Don't forget to use lots of radials laid on the ground, or slightly buried.

Good luck!

73
Frank
W3LPL


---- Original message ----
>Date: Sat, 23 Feb 2008 12:00:13 -0500
>From: aa4nc at aol.com  
>Subject: [TowerTalk] inverted L tower mounting  
>To: towertalk at contesting.com
>
>I want to upgrade antennas for 160m from my current inverted vee @ 115'. I'd like to put up an inverted L to get some vertical plus horizontal polarization for DX and domestic contesting. My situation is that the only two supports that I have are towers. Most everything that I've read says this doesn't work well, however I've seen some guys do it.
>
>I'd be interested from hearing from anyone who has had good luck mounting a 160m inverted L on standoffs from a grounded steel tower. The guys are broken up with insulators and I have 2 towers to choose from - 90' with 10/15m yagis and 130' with 20/40m yagis. The towers are 110' feet apart.
>
>73 / Tnx,
>
>Will AA4NC
>
>
>
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