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Old February 25th 06, 08:32 PM posted to rec.radio.amateur.antenna
Robert11
 
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Default 75 And 50 Ohm Connectors In Same Listening Chain ?

Hello,

Should have asked this also in my previous post re 50 or 75 ohm coax, but
I guess it is probably better to start a different thread.
New at this, so please pardon these very basic type of questions.

For a receiving only application, 30 MHz on down:
Putting up a new Inverted-L receiving antenna.

Radio, Balun, Lightning Arrestor use the 259 type of plug which I guess is
nominally for 50 ohm systems.

I can go with 75 ohm BNC connectors for the main coax run, but am pretty
well stuck with the
259 type for the already purchased units I noted above.

Intuitively, I guess I would like (all) 75 ohm connectors if I am using 75
ohm coax.

But, for 30 MHz and lower listening, would I even notice any difference,
probably ?

Is any received signal lost, or reflected back, at these 75-50 ohm junctions
?
If meaningful, any way around the problem ?

Thanks,
Bob