[TowerTalk] TA-33 Mosley Senior-Choke Balun needed?

[Bob Allen <mcamp@gmavt.net>]

Hi,
We were working on our 2 Field Day antennas and the question came up about choke baluns and 
whether they are needed on this antenna.
The manufacturer say no but Cushcraft's instructions for one of their tri-banders of similar 
construction and frequency says to make a choke balun by wrapping coax in a 6" circle 8 turns. 
Given that and the assumption that the coax hitched direct could have problems with common mode 
currents as described in the ARRL Antenna Book 19th ed. sec.26 pg. 16 we use choke baluns as 
described above.
The question is: are we doing anything that might stand out as particularly wrong in the sense 
of signal loss or maybe SWR issues though these antennas tune fine like this (except when we get 
the dipoles too close)?
We feed these with rg-8

Bob
KB1FRW
73

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