> FM radio stations don't "drop their power" during
> transmitter repairs either.
Actually, they have to reduce power if people are climbing up to the top of the tower. I've dealt with tower workers getting on the tower and having to lower power several times. Testing my memory, if your station has a paper transmitter log, you take a reading, lower the power, and write on the log, "Reduced power. Tower work." Then, take another reading. After the tower work is complete, you take a reading, raise the power, and write "Returned to normal power. Tower worker safe." Then, you take another reading. The last station I worked at when I had to deal with tower work used a computer to control the transmitter instead of a paper log. So, I just had to tell the computer there was tower work, and it lowered the power and logged it for me. Then, I had to tell it when the worker was safe, and it raised it back and did all the logging for me again.