RadioGuy wrote:

Yup... and there was an article in Electronics Illustrated magazine for
March 1968 going into detail on how the towers were going to cause
disruptions to TV broadcast station coverage.

RG

Before the WTC towers were built, most television transmitters in NYC
were located on the Empire State Building. As the WTC towers grew taller
during construction, they started to cause serious reception 'ghosts'
(double images), particularly for viewers north of NYC. This was because
the signal from the ESB going south was reflected off the WTC towers,
producing a second signal going north. When the second reflected
(delayed) signal met with the primary signal going north from the ESB,
viewers in that area saw a serious ghost image on their screens. After
the WTC towers were completed, the television transmitters were moved
from the ESB to the WTC and that ended the ghost problem.
Since 9/11 some TV transmitters were moved back to the ESB (WCBS Ch-2
still had their old one there) while others were installed across the
Hudson river on the old Armstrong tower. It will be interesting to see
what happens to television reception in the NYC area when the new WTC is
built.


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