[Antennas] Hy-gain AV-640 issues

Andy ingraham.ma.ultranet at rcn.com
Sun Apr 24 22:26:46 EDT 2011


fred forbush wrote:

> Higher coax loss means higher SWR.

Actually, no.

If the cable had no loss, then a short or open at the far end
translates to a huge (infinite) SWR at the rig end.

If the cable has huge loss, then the SWR at the rig end approaches 1:1
no matter what's on the other end.

Coax loss makes the feedline look like a dummy load ... the more loss,
the better the dummy load.

That is all assuming you are using the coax at its characteristic
impedance, of course.

Andy


More information about the Antennas mailing list