[Linux-ham] Roll up J-pole

Peter Grace kb1cvh at arrl.net
Tue May 16 14:36:17 EDT 2006

I would think it would have a negative effect on your radio and the antenna.
The antenna generally should present a 50 ohm impedance to the radio.
With the RG-59 coax instead of RG-8X or Belden 9913 or better 50 ohm coax, I
suspect that the impediance mismatch will cause the SWR to be non-optimal.

Of course, I'm willing to learn from someone more knowledgable.
Peter Grace 	kb1cvh at arrl.net           GPG/PGP KeyID: D758F3EF
Workflow and information systems manager with recent experience with Hyperion
Intelligence server administration, Cognos Reportnet, Oracle, Linux and many
years of experience with managing and developing on large scale CRM systems.

Quoting Rob Rousseau <ki4bke at nc.rr.com>:

> Hi Folks,
>    I'm trying to make a rollup j-pole out of 300 Ohm TV twin lead
> wire.   I bought an RG-59 coax cable (with BNC connector), but it is 75
> Ohms instead of the recommended 50 Ohm RG-8X cable.   Would this have a
> negative effect on my antenna?
> Thank you for your advice and help,
> -Rob KI4BKE
> _______________________________________________
> Linux-ham mailing list
> Linux-ham at trilug.org
> http://www.trilug.org/mailman/listinfo/linux-ham
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