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Legal watts on a CB is 4, though yours will probably have less. Mine only puts out about 2 watts.

You will need a SWR meter to check, the Cobra 19 does not have one built in. They aren't too...

Generally a large coil is ok, just not tightly wound. But yes straight is best.

Nevermind, Tony beat me to it.

What is all adds upto is that with a 2.0:1 SWR you aren't losing 50% as you had suggested, only just above 10% of the watts. 4 watts output, .44 watt loss, which isn't bad.

I would say that 50 ohm coax is pretty standard however the quick disconnects are not at least not in the CB world. Can be easily found though.



My understanding is that any combination of 9'...

I believe the preferred coax length is 9' increments since 9' (108") is approx 1/4 wavelength in the 11 meter band. (102" whip with 6" spring= 108")