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                                Tuning instructions and settings below

Tuning Instructions.

When adjusting swr on this loop, a very little change will make a big difference. Mark positions of shorting bar and gamma match outer tube before moving.

If you need to adjust loop for a lower swr, start by loosening both set screws on the gamma match shorting bar. Movie the gamma match outer tube closer or farther away from the SO-239 connector. If more adjustment is needed, move the gamma match shorting bar closer or farther away from the SO-239 connector.

A combination of both will yeild a flat swr at your desired frequency.

Retighten set screws when done.

Measurments shown are a starting point only.

Warning !!!!!  Antennas made from aluminum and stainless steel are excellent conductors of electricity

Contact with power lines can result in death or serious injury

Do not install antenna, tower or supporting mast near any power lines

© 2011  FreqTester

Heavy Duty Horizontal 432 MHz loop for CW or SSB

A rectangular full wave, 5/16" diameter aluminum element

much larger than 1/2 wave loops

1-1/2 stainless steel U-bolt style mast clamp

Gamma match tuning, (50 ohms)

SO-239 Silver Plated Teflon connector

Great for rover or base  

Assembled and tested 

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