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[TowerTalk] Cushcraft AP8 Vertical

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Subject: [TowerTalk] Cushcraft AP8 Vertical
From: "Ron W8RJL" <>
Date: Sun, 10 Oct 2010 21:16:43 -0400
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I just obtained an old AP8 which was broken off at the base. There is a round 
black plastic blob directly above and connected to the center pin of the SO-239 
feed point connector. I have reviewed the manual for the AP8 and that item does 
not appear in the parts list. My educated guess is that it is an RF Choke used 
to keep the vertical grounded to eliminate static charge. It might also be 
shunt inductance for feed point impedance matching. Can anyone confirm my 
suspicions? I doubt a replacement part is available so I will probably have to 
wind my own. Comments welcome. 73, Ron W8RJL

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