[TowerTalk] Full 40 mts dipole on side of a tower

Jim Thomson jim.thom at telus.net
Sun Apr 1 20:24:11 EDT 2018

Date: Sun, 01 Apr 2018 03:03:32 +0000
From: FERNANDO MUGUERZA VIDEGARAY <xe2fl.kf5mn at gmail.com>
To: TowerTalk at contesting.com
Subject: [TowerTalk] Full 40 mts dipole on side of a tower

<I think the antenna is a big capacitor formed by the antenna as one of
capacitor?s plate ,the big tower plus antenna clamps are the other
capacitor?s plate,this gives a lot of capacitance that is changing the
antenna?s frequency of resonance,it is better to separate the dipole from
the tower which now is  only 1 inch.
  Insulated plate and clamps are a must!

## I find this hard to believe.  If there is any stray C  between  each ele half, and the al
plate he has it mounted to,  you could easily measure it with any digital  LCR meter. 

##  F-12  mounted their 40m and 80m rotary dipoles to large  17 inches wide x 8 inches tall
al plates , using just split  PVC tube u find in any home depot electrical dept, the  grey  stuff, 
UV resistant.  

Something else is amiss here.  

Jim   VE7RF 

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