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Old July 30th 06, 12:51 PM posted to rec.radio.scanner
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Posts: 27
Default grounding question

Is a 50 Ohm termination a special value for static discharge? Is it better
than a short or a 10K resistor? The permanently connected 10K would make
it unnecessary for you to screw on your 50 Ohm termination.


Dale W4OP


I would think that the lower the impedance, the better, since a dead short
on the antenna would be the ideal situation when disconnected. The reason
it's 50 Ohms is because that's a readily available terminator. I'm using
BNC connectors, so the effort is minimal. The down side of leaving it
connected all the time is that, without a lightning arrestor, a strike would
probably damage the receiver, so I'm going to disconnect it in any case. I
don't think the 10K would protect against that.

- Doug


 
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