Dave Platt wrote:
As I understand it, one of the bigger downfalls of ordinary 300-ohm
twinlead for TV reception is that its performance can deteriorate
rather badly with age. Sunlight causes the PVC to deteriorate, and
surface contamination and moisture (e.g. rain) can significantly
increase the losses.

It's also subject to problems if it is too close to things, remember those
special standoff insulators for it? It can not be looped, wrapped around things,
etc.

Geoff.


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Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM