[TowerTalk] Mosley S-402

john at kk9a.com john at kk9a.com
Tue Mar 28 06:34:34 EDT 2017

I have no personal experience with Mosley. It is not necessary to insulate
the parasitic elements however doing so makes calculating the lengths much
easier as there is no boom/bracket compensation.  Also the boom resonance
is easier to calculate should you have multiple antennas in various
directions. Direct mounting will likely require some tip length changes.
You can purchase insulating material at McMaster Carr and other places
should you wish to fabricate new heavier duty insulators or you can use
Stauff clamps or possibly DX Engineering element brackets.

John KK9A

To:	TowerTalk at contesting.com
Subject:	[TowerTalk] Mosley S-402
From:	Tom Martin <tmartin at chartermi.net>
Date:	Mon, 27 Mar 2017 16:17:47 -0500

For the second time I've had a broken element support issue. The first
time a F1 tornado came through and I lost half of the reflector. A few
weeks ago, a 45 mph wind gust took off half of the driven element. Those
insulator blocks have failed each time right at the coil to element

Does anyone know where I can get ideas as to how to bag the little blocks
and still have the elements insulated from the boom? Also, I see that my
Mosley CL-33 doesn't have the director and reflector insulated from the
boom. I thought that if the driven element was insulated from the boom,
all elements had to be the same.


73, Tom W8JWN

More information about the TowerTalk mailing list