[Elecraft] 75 ohm coax

Frederick Dwight kl7cw at mtaonline.net
Fri Apr 3 02:08:54 EDT 2020


If your 75 ohm coax has a steel/copper coated center conductor, be sure to test it for loss on
the lowest frequency band you will use.  I experimented with a steel core 160 meter
antenna and found it had some additional loss and probably due to the inductance
it could be shorter for resonance (10 % perhaps ??) so I abandoned the idea.  Never noticed the effect on higher frequencies. 

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