bumper,

I'm talking about the main bipole antenna (I have a core unit, not a portable).

Is that coaxial cable so poorly shielded that I have to create a special routing for it away from the radials? What kind of performance degradation are we talking about if the coax is, say, 1cm from the radial (and no metal is involved for the mounting)?

In PF's "Good Examples" section of their web page, the first example shows the coax lead running close to the lower radial. It also looks like a metal bracket, but I could be wrong about that.

2NO