[BC] WOWO

[Dan Strassberg]

WOWO's 9800W powered-down Class B night operation receives, I believe,
protection (currently only from WLIB) to the 5 mV/m groundwave contour. In
the future, all the other Class Bs on 1190 will allegedly have to protect
WOWO to 5 mV/m at night. Because WOWO's site is southwest of Fort Wayne and
WOWO has to deliver a 5 mV/m nighttime groundwave to Fort Wayne, the signal
toward New York, though a shadow of what it used to be, is still
substantial. WLIB's night facilities had to be designed to deliver an NIF
signal to at least 80% of New York's five boroughs, notwithstanding the null
in WLIB's night pattern over northern Queens and the southeast Bronx to
protect CHTN, which moved from 1190 to 720 almost 20 years ago and will soon
move to FM. Believe it or not, WLIB's NIF (entirely from WOWO) is around 17
mV/m! A couple of hundred miles to the southwest, WBIS's 7-kW night signal
(currently a CP) will have an NIF in excess of 21 mV/m, entirely
attributable to WOWO's skywave. In other words, the powered-down WOWO
delivers a 5+ mV/m 10% skywave to the Baltimore metro and 4+ mV/m to
New York. True, both New York and Baltimore used to be well within
WOWO's 0.5 mV/m 50% skywave contour, but even the reduced signal
covers a lot of territory.

Now, if somebody can explain to me why WAFS Atlanta has to protect WOWO
during critical hours even though several other 1190 daytimers have recently
been granted increased CH power, I'd be really interested to hear the
reason. Gotta have something to do with the interference-reduction agreement
that WOWO, WLIB, and WAFS negotiated but never implemented. Under that
agreement WAFS would have been granted 10 kW-N from five towers west of
Atlanta, WLIB would have modified its night pattern, and WOWO would have
added one tower and increased its night power to 15 kW with a considerable
increase in night signal over Fort Wayne.

--
Dan Strassberg, dan.strassberg at att.net
eFax 707-215-6367