[BC] New RFR math
Gary Peterson
kzerocx
Mon Jan 23 08:31:17 CST 2006
It doesn't make any sense to me. However, I was out of school by the time
they started teaching creative math.
If I am notified that someone is climbing, I switch to manual power control
and kill the screen supply on the TX. That drops us to about 4 or 5 %
power. I tell them to climb as far away from our bays as possible (opposite
side of tower) and to not dally or rest near our antennas. If they have an
RFR monitor, I will shut down completely in the event that it indicates
excessive levels. I wish more tower outfits had RFR monitors and would
honor the signs and notify the licensees before they climb. I'm sure I'm
preaching to the choir here.
Gary, K?CX
" We all know that the proper level of RFR for a climb through has to
be calculated. (my term, climb through, for the space where tower
climber is in the aperture of a side mounted antenna) Yet, at my one
site, where I am a tenant, I have had three different tower companies
tell me to go to 25% power. I then ask then if I am a standard class B,
running 21 KW into a 5 bay, if 5 kw into the 5 bays, or 1kw per pay,
would make them happy. They pause, do the math, and say, sure! My
station runs 1.8 kw TPO into 3 bays, or 600 watts a bay. Yet they want
that to be reduced to 25% !
Again, I believe the true level needs to be calculated, but is
this new math that says that 600 per bay is dangerous and 1kw per bay is OK?
tom bosscher "
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