[TowerTalk] Fwd: Insulated elements, Yes - No?

[Hans Hammarquist via TowerTalk]

Well Dan,


I just received a TX38 from Cycle24. All the elements are insulated from the bom. I don't know if that's for convenience but the elements are clamped to the bom with plastic/hard rubber cleats. I have no problems with the engineering of it but it starts me wondering ...


Hans



-----Original Message-----
From: Dan Cisson <n4gnr at windstream.net>
To: Hans Hammarquist <hanslg at aol.com>
Sent: Tue, Aug 5, 2014 12:53 pm
Subject: Re: [TowerTalk] Insulated elements, Yes - No?


Hans,, about all driven elements are insulated from the boom,,, and I have 
NEVER seen the other elements insulated from the boom,,, they are always 
grounded to the boom(not insulated)...Dan N4GNR
p.s. look at some of the commercial antennas like HyGain and M2,, look at 
download manuals for those antennas

-----Original Message----- 
From: Hans Hammarquist via TowerTalk
Sent: Tuesday, August 5, 2014 12:32 PM
To: towertalk at contesting.com
Subject: [TowerTalk] Insulated elements, Yes - No?

When I, (too many years ago) read building instructions for yagi antennas it 
was claimed that it didn't make a difference if the non driven element was 
electrically to the bom or not. Now I see that the element are insulated 
from the bom.


What is the right thing to do? (I hope NOT to start a long discussion). Is 
it the same thin with the driven element if I use a gamma match?


Best 73 de,


Hans - N2JFS
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