On May 15, 5:42 am, Cecil Moore wrote:
Jim Kelley wrote:
On May 14, 7:44 pm, Cecil Moore wrote:
In order to get a valid measurement of the delay
through a coil, the coil needs to be loaded with
its characteristic impedance to minimize the
reflected current.

What if a 3' long stainless steel whip is loading the coil?

That makes the antenna a standing wave antenna.

It makes it an antenna.

Standing wave current has a negligible phase shift in
the coil or in the whip and therefore cannot be
used to measure the delay through a loading coil.

The delay through the coil depends on inductance and capacitance.

To the best of my knowledge, all attempted phase
measurements reported on this newsgroup, on current
through a loading coil have been made using standing
wave current with its fixed phase. No useful coil
delay information can come from such measurements.

So your claim is that information about Bugcatcher coils with a load
resistor attached is more useful?

ac6xg