[TowerTalk] Elementary feedline loss question

Pete Smith N4ZR n4zr at contesting.com
Fri Apr 4 09:53:55 EDT 2014

If I terminate a long 50-ohm coaxial cable with a 50-ohm dummy load, and 
put an MFJ-259B on the other end, and it reads R=56, X=0 at a given 
frequency, what is the mathematical relationship between the measured R 
(leaving calibration out of it, for now) and the loss in dB?

73, Pete N4ZR
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