It is possible to determine the optimum take-off-angle (TOA) using an
analysis of backscatter. Possible, not easy.
It is improbable that WWRB has the expensive equipment and personnel to
perform the feat and even more unlikely that their limited antenna system
could benefit from knowing an optimum TOA. Note their occasional strong
second harmonic on 10100 kHz and how few antennas are in their "kit."


Mac

--
J. Mc Laughlin; Michigan U.S.A.
Home:




Brain fade time, but I vaguely remember a description in one of the
hobby electronics mags (PE, RE, or Monitoring Times) about a system that
the stations can use to determine which antenna angle gives the best
results to their target area by picking up backscatter and determining
where their signal is going. (Obviously before the time when they could
stick a receiver on the Internet and just listen).

Anybody know any details?

Mark Zenier Washington State resident