Cecil, W5DXP wrote:
"There is no way in heck to get 3 nanoseconds delay out of a 100 turn,
10-in., 2-in dia. coil."

I calculate 628 in. of wire divided by c (@ 1181.1x10 to the sixth power
in./sec.) = 0.53x10 to the minus 6 power, delay through the coil. That`s
just over 1/2 microsecond delay in the coil. A lot slower than Tom`s
coil but my signal sticks to the wire.

Best regards, Richard Harrison, KB5WZI