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Re: Can the NanoVNA be used on 75-ohm antennas/cables?


David KD4E
 

Does not a mismatch create problems with loss and noise?

If I connect a 50 ohm coax to a 300 ohm TV antenna, without a
transformer, should I not anticipate a poor quality received signal?

Or am I misunderstanding?

David, KD4E

You know, after all the talk about matching impedances, I'm really

wondering .... we talk about POWER in watts but that's pretty much for

transmitters. But we talk about receivers in? VOLTS. Well, okay, microvolts,

usually. Somehow, I don't see a good reason to CARE about matching

receiver input impedance. Maybe it lowers the antenna bandwidth or Q?


Impedances have PHASE, but voltages do not. Care to comment?


Bill

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