I will call it PSA (pre-sunrise authority) because that is how it used to be listed in the Broadcasting Yearbook.
I am going to use WAOS, Austell as an example just because I know some of it's technical history. In the 1970s WAOS AM 1600 (then WACX) was authorized for 1000 watts NDD (non-directional day). Also, the station had a PSA power of 500 watts which allowed the station to sign on at 6AM at 500 watts and then raise the power to 1000 watts at official sunrise.
Now WAOS has a nighttime authorization of 67 watts. Did that "override" the PSA or does the PSA still exist? For that matter, do the old PSAs still exist? I know there was something about the FCC not having records and the station had to be able to produce the original paper authorization (usually in the form of a Western Union Telegram).
I am going to use WAOS, Austell as an example just because I know some of it's technical history. In the 1970s WAOS AM 1600 (then WACX) was authorized for 1000 watts NDD (non-directional day). Also, the station had a PSA power of 500 watts which allowed the station to sign on at 6AM at 500 watts and then raise the power to 1000 watts at official sunrise.
Now WAOS has a nighttime authorization of 67 watts. Did that "override" the PSA or does the PSA still exist? For that matter, do the old PSAs still exist? I know there was something about the FCC not having records and the station had to be able to produce the original paper authorization (usually in the form of a Western Union Telegram).