SWR Meter out of calibration. Can it be fixed?

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W5lz

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Feb 28, 2019
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Just for information, holding an Extra class license doesn't tell you anything about how long anyone has been a ham, or how much experience they have. You used to have to be a ham for two years before you were even allowed to take the test. Now, you can be an Extra in one setting, no license at all.
And I agree with you, the matter is closed.
 

majoco

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I'm somewhat surprised that you jumped to the conclusion that your meter was suspect without carrying out any further tests. You didn't say what power transmitter you were using, but I would certainly have made up a dummy load of a couple of 100ohm resistors in parallel and a suitable connector to check what the meter said, as you said you don't have a dummy load. For VHF work you need a proper RF screened load - if I had my way, every VSWR meter sold would have one in the box! Measuring VSWR of an antenna down a length of coax is always doubtful, so you should put your dummy load at the far end to confirm that the cable is good. Then you put you meter up at the antenna with a very short length of coax and see what the real answer is up there.
As an instructor of mine said many moons ago said "If you don't get the results you are expecting, suspect the test method, not the device being tested."
 

cmdrwill

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Measuring VSWR of an antenna down a length of coax is always doubtful, so you should put your dummy load at the far end to confirm that the cable is good. Then you put you meter up at the antenna with a very short length of coax and see what the real answer is up there.

Exactly, excelent point Majoco, but this is not on any of the 'ham' tests. Alltho this IS covered in Antenna 101.
 
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