[AMRadio] Dealing with Ice on BC Antennas


billy kd5zla at swbell.net
Mon Dec 16 12:15:38 EST 2013


On our antennas on 93.5 and 106.9 we have de-icers Our AM at 1450 is the 
one that we have trouble with 180 ft folded una-pole. Have to go out and 
beat the fire out of the wires to get the ice off of it.


n 12/16/2013 11:03 AM, Kimberly Elmore wrote:
> I know that a lot of the list participants are BC engineers of one stripe or another. Talk about lots of RF has led me to wonder how broadcast transmitters deal with ice accumulation on antennas. Ice certainly detunes mine, making it electrically longer. I can, of course, simply twiddle a knob or two on matching network and get past the problem, but big transmitters aren't so agile nor are they particularly forgiving. Dealing with so much RF is a completely different world from what most of us non-BC engineer types will ever experience. How is this sort of thing handled?
>
> Kim N5OP
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