Yes, one station emitted dots while another station transmitted dashes, when
receipt of the two signal joined to produce a mono tone the plane was at
the predetermined point where it would drop its 'messages' on civilians
below" The use of phosper gretly helped following waves even tho fires were
outed they then reignighted when the material dried. We only had tar paper
windows to ensure that guiding lights were not provided as a help.
ArtDave VanHorn" wrote in message
...

If you're trying to trip something at a specific point, you might try
using
a different WWII technique, scaled up. They did bomb releases by flying
till they crossed a radio beam.
You could use a microwave (10-24 GHz) source as your beam transmitter.

Later systems used two beams, and more sophisticated means.

Measuring absolute signal strength, at any real distance, is going to have
such huge variability as to make it useless.

If an anteena has a specific range dominated by its power input and a
distance thru air would not a ntenna with more gain allow it to0 travel a
longer distance until the plane
came to a distance to allow a relay to drop out.
I was looking for a meaningfull indication of gain that would not be
assaulted gurus negatives with respect to isentropic gain and disbelief of
calculations made.
What better way for the man in the street to understand antenna gain rather
than messing with dbi, dbd e.t.c., which an amateur uses to fulfill his need
for conflict?
Art