[TowerTalk] Will Resonance Go Up or Down?

[David Robbins K1TTT]

I would expect it to go up in frequency.

David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://www.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net
 

> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-
> bounces at contesting.com] On Behalf Of Doug Rehman
> Sent: Monday, March 13, 2006 21:19
> To: towertalk at contesting.com
> Subject: [TowerTalk] Will Resonance Go Up or Down?
> 
> I've got a CushCraft D40 rotatable dipole mounted on my tower's mast. At
> present, the tower is laying over horizontally. The D40 is about 6' off
> the
> ground.
> 
> It is resonant at about 7035 with about 220 KHz between 2:1 SWR points.
> When
> I raise the tower to vertical and extend it, thus raising the dipole to
> around 66', should the resonant frequency shift upward or downward? Any
> idea
> how far?
> 
> Tnx,
> Doug
> K4DDR
> 
> 
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