"Cecil Moore" wrote in message
t...
Yuri Blanarovich wrote:
The main argument was the current distribution along the loading coil in
a resonant quarter wave radiator. I and bunch stated that there is a drop
along the coil, ...

There is not much "drop" through the coil for the
forward current and reflected current. The "drop" in
standing-wave current is caused primarily by the
superposition of the forward current and reflected
current with their phasors rotating in opposite
directions. Assume there is zero loss in the forward
and reflected currents.

At the bottom of the coil, the forward current is 1a
at 0 deg and the reflected current is 1a at 0 deg.
The total current will be 2a at 0 deg.

At the top of the coil, the forward current is 1a
at -45 deg and the reflected current is 1a at 45 deg.
The total current will be 1.414a at 0 deg.

Here are the corresponding phasor diagrams:

http://www.w5dxp.com/phasor.gif

There is no drop in either forward current or reflected
current, yet there is a "drop" in total current. Since
lossless conditions are assumed, the "drop" is caused
100% by phasing, not by losses or radiation.

If we use a loading coil at a particular point in a
1/2WL monopole, we can get a *rise in total current*
through the coil. Both examples can be seen at:

http://www.w5dxp.com/test316.GIF
--
73, Cecil http://www.w5dxp.com

Exactly and thanks for your insight into the subject.
The argument was/is about (net, resultant) current along the loading coil in
a RESONANT quarter (standing) wave monopole, aka mobile 80 m loaded whip,
which was measured by W9UCW and ridiculed by W8JI et al.
The rest is QRN.

Yuri, K3BU.us