m II wrote:
Anyone have a way of measuring the varying efficiencies of the
following? Let's say 5 to 20 MHz frequency range.

This would be the base number for comparison, assign it a one:

a: Straight connection of a random long wire antenna


The others...

b: The same long wire connected through a television (75/300 ohm variety)

c: Same antenna with a 9:1 ratio transformer

I'm assuming everything else remaining the same. I'm interested in the
variation, shown ratio wise, between the above. Are there any handy
online calculators for this?


mike
http://amateur-radio-wiki.net/index....le=Calculators

dave wrote:


http://amateur-radio-wiki.net/index....le=Calculators


dammit, dave. If I felt like working at it, I would have gone across
the room and picked out a BOOK. Then on to finding the HP41...Why
can't we just be spoon fed all the time? It works for all the News I
get these days.


On a more serious note, this link was in there..thank you.

http://www.g8ajn.tv/balun.ht



mike