[amsat-bb] Re: 75 ohm CATV Cable on 70 cm

Fred A Parker fparker at paulbunyan.net
Tue May 22 09:36:11 PDT 2007

I run up to 100 watts with no trouble.    To get a good match.    Put a dummy load on the end of the cable and keep trimming it say six inches at a time until you get a good match .    Remember if the cable is cut to 1/4 wave length or odd multiple thereof it is the worst condition you can have.   While 1/2 wave length or even multiple thereof is ideal.  Or you could try and put some torrid beads on the end of it to help control the rf feedback back down the line.   Remember this line is not designed for the high voltages you get with high swr.

Fred KF0AK

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