View Single Post
  #761   Report Post  
Old March 27th 06, 10:50 PM posted to rec.radio.amateur.antenna
Tom Donaly
 
Posts: n/a
Default Current through coils

Cecil Moore wrote:
Gene Fuller wrote:

Emboldened by this apparent success I tried to substitute the
now-famous W8JI coil; 100 turns, 2 inch diameter, 10 inch length. This
time the overall 500 segment count was the limiter (I am cheap), so I
had to make the coil four-sided. The delay through this coil was about
9 degrees at 5.89 MHz and about 6 degrees at 3.9 MHz. Sooooo, the
bottom line for the 17,000 posts in this thread is ...



You wish that was the bottom line. Here's some mud in your eye.

1. I have always been talking about my 75m bugcatcher coil which
is about 6"x6" and designed for actual mobile use. W8JI's coil
is nowhere near what the average ham uses for a 75m bugcatcher
coil. It is much too fragile for long-term mobile use. It can't
even be considered to be a "bugcatcher" because one Texas-
sized bug and it is destroyed.

2. You haven't installed that coil in an 8 foot 75m mobile
antenna so you don't know what the delay is in an 8 foot
4 MHz system. Please feel free to try again - no cigar at
the present time.


You mean your coil has to be attached to an antenna in order
to become a transmission line? This is getting better and
better.
73,
Tom Donaly, KA6RUH