KR4BD said:
That would be a violation of FCC rules unless they had an STA (Special Temp Authorization). Output power must be maintained between 90% and 105% of licensed power...unless the rules have changed and I am in the dark on this....
That's true, power must be maintained at at least 90% of licensed power. Those rules have not changed.
I'm not buying the "weathered transmission line" argument either. That transmitter is sending 23.8 KW up the line, and if it's getting lost in the line someplace, it doesn't take long before there's a fire in it. And then it's off the air. So that's not it.
However.... their license was modified in 2009. And their current license show them using an
ERI Lynx Antenna That's a new antenna designed for combining an HD transmitter with analog. So that was probably the license mod in 2009.
When the new antenna went up, they probably paid the extra $5 grand and did a pattern study. They would have maximized their radiation to the north, to help out downtown and with that crappy multipath area they always had along 64 between Story Avenue and the tunnel.
That would have taken power that used to go south and west and maybe even east, and directed it north toward Louisville. Which was the smart thing to do.
But that would have made it seem like WAMZ doesn't do as well as it used to in those other places. because, in fact, it doesn't. Their radiation pattern has been redirected to areas that count in the ratings.
That's my guess. They're not dumb enough to "save money" on their cash cow, especially now that they actually have to fight for their ratings. If something was broken, they'd fix it.
But it's not broken. It's "re-engineered".