[RFI] Ladder Line and RFI/Noise

[Andy]

>  The developers of telephone communications
> learned more than a century ago that twisted pair was at rejecting noise
> and crosstalk, and that parallel wires were bad.

It would seem, then, that twisting one's ladderline might help.  It
might not fix the problem, but it should help, except for tight spots
where you need to run past something for only a few inches (like
through a wall, perhaps).

One might envision even using twisted wire pairs instead of open
ladderline.  But with such tight coupling, comes (a) much lower cable
impedance (100 ohms or less), and (b) higher loss, probably closer to
that of coax since most of the dielectric wouldn't be air anymore.

Andy