Update on HD

January 21, 2020 Off By Eric O'Brien

Seems many of you in Pittsburgh have HD radios in your cars or homes. It also seems that you enjoy it. There are two things I want to clarify based on your responses.

WPGP (1250) is NOT broadcasting in HD on AM. According to Scott Fybush, that was the case back in the Radio Disney days, but Salem Broadcasting turned it off upon purchase and the switch to “The Answer”.

100.7-3 is the old WAMO 100 (660 Wilkinsburg) format. Now here’s the trick behind this. When WAMO returned to 660 several years ago, it was assigned an FX (the abbreviation for “FM Translator”) at 100.1 which, at the time, was on the KDKA-TV tower. It moved over to Hays where 96.1 and 1250 have their transmitters.

About a year ago, WAMO was assigned another FX at 107.3 and created a new format to put on 660. So, here’s the catch, an AM signal is allowed to have more than one translator. But each one has to serve a different contour within the main signal. So, 100.1 and 107.3 likely share a large percentage of the same contour. Therefore, what had been on 660 vacated the AM frequency and the new format came on. Meanwhile, FX signals can also retransmit HD-2 channels and a deal was struck for the “main signal” to be WBZZ-HD3 and 100.1 continues to serve as the translator while 660 is on 107.3.