Jim,
His comment/query concerned the common mode current on the feedline if
it is in the radial field.
I'm waiting for comments about balun.
Don
N8DE
Jan Erik Holm wrote:
Why a balun?
73 Jim SM2EKM
--------------
Don Havlicek wrote:
Tom,
Good question!
I never used a balun on the 80m vertical, but might when I replace the
coax this Spring.
I'll be interested in reading the responses to your query.
Don
N8DE
Tom Champlin wrote:
The recent discussion of ground radials has been a big help for me.
There is just one other thing that bothers me. Most hams would
probably either run buried PVC to put the feed line in, which would
of necessity be parallel with the nearest buried radials. Even if
everything was above ground, my question would be the same. Assuming
it would be desirable to use some kind of balun on the coax before or
at the vertical feed point, possibly a W1JR toroid type, or some
ferrite beads. The object being to keep RF from running back to the
shack on the coax braid.
So, would one want to place this balun past the radial field but
before the feed line gets close to the house or right at the antenna,
or does it matter?
Tom W0HH
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