On Sat, 20 Nov 2004 21:28:54 +0000 (UTC), "Reg Edwards"
wrote:

The supposed 600-ohm Zo of a random length of wire has very little to
do with it.
===============================

Depending on length, height and wire diameter, Zo can vary between 450 and
650 ohms or thereabouts. What's yours?

Then what balun ratio would the guru's and old wives recommend? And to
confuse even further, receivers can have an input impedance anywhere between
50 and 1000 ohms.

Some tuned receivers have an indeterminate input impedance. Who needs a
balun?
----
Reg , G4FGQ

Well Reg need and want are two different things. Perhaps my inverted
L didn't 'need' a balun, however after installing an ICE-182A
DC-Isolated matching transformer (balun if you will) I had a
noticeable reduction in noise. The difference is real and as a result
I have a better S/N ratio that makes listening less fatiguing. Now
here's the $64,000 question ........"Was the difference due to
impedance matching, the DC isolation or did a previously un-noticed
loose ground get fixed when I put the ICE unit in-line?"

Howard