[Elecraft] KX1 - We need to develop the ideal antenna

[Ron D'Eau Claire]

The feed line losses go up as the impedance goes down. "Zip" cord (like
speaker wire) has two close spaced conductors, so the impedance is quite low
as "balanced" feed lines go. I've seen actual impedance measurements in the
50 to 100 ohm range published. 

So it might be a little better than coax at high SWR's but not
significantly. 

Ron AC7AC

-----Original Message-----

David,

I take your point. Not sure about the use of twin loudspeaker wire for 
portable applications. It might be satisfactory when split to make the 
antenna element, but could be lossy when used as a feeder, don't know.

73,
Geoff
GM4ESD

On May 16, 2011 at 12:48 PM,  CUTTER DAVID

> I can understand this in a home situation, but for use with a very 
> lightweight, low bulk portable rig like a KX1 I would use something like 
> 16/0.2, (16 strands of 0.2mm copper, similar to 14/0076).  I         > 
> wouldn't for instance hang flexweave from a floppy fibreglass pole, but 
> I've done it with this thin multi-strand insulated wire. Flat twin 
> loudspeaker wire as shown in (all?) post-war ARRL handbooks         > 
> doesn't even need a centre insulator/connector.  My criteria is:  if it 
> falls out of the tree/balcony/hotel room window, will it cause damage or 
> hurt someone?

73
David
G3UNA




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