posted on Oct, 14 2003 @ 08:35 AM
More than likely, Overhead Door isn't on the same frequecy as the antennas on the new towers. They are using the correct frequency I'm sure. I
venture to say what we have here is in effect the same sort of interference we get when we hold our 800-900 MHZ cell phone next to a computer monitor.
They aren't on the same frequency but an anomoly known as a harmonic is responsible. See, no transmitter is exactly at the frequency to absolute
perfection and when the antenna length is too far out of spec, a larger harmonic is created and more of the transmitted signal is also returned to the
transmitter which can burn it out. My guess is an incorrection occured in the transmitter producing a harmonic which interfered with the relatively
weak signal from the transmitter in the openers. When the opne button is pushed, small identifyer is sent and has to be read completely before it
will trigger the opener. The interference must have been so bad that it kept some, if not all of the code from being received. Thats just one guess,
of course and doesn't discount the effect that HAARP, which is a huge transmitter, might also inflict.