Transmitter Efficiency Calculator

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The transmitter efficiency calculator is amazingly accurate (“This Calculator Is Cool Stuff,” June 1).

I entered the measured transmitter efficiencies for WQYK(AM) in Tampa, and selected the commercial power rate. It was within 1 percent of the monthly electric bill.

This calculator is a winner!

Dr. Frank Berry
Tampa Bay, Fla.


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Increase Efficiency - Add Cooling

It won't be long before transmitter buildings that lack air conditioning will turn into hot houses in many parts of the country, as higher daytime temperatures approach.