[RFI] Ladder Line and RFI/Noise

Andy ingraham.ma.ultranet at rcn.com
Tue Oct 19 13:13:14 PDT 2010


> The primary component of loss below UHF is copper loss, not dielectric
> loss.

Good point.  I keep forgetting that.

> There's at least one exception to this. A decade or so ago, N7WS did
> some research, published in one of the ARRL Antenna Compendiums, showing
> that WINDOW line gets pretty lossy when it gets wet. ...

I have also seen several references (for much longer than a decade)
saying that TV twinlead also gets lossy when wet.  So it is apparently
not unique to window ladderline either.

Andy


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