MPB has a CP for WMAA-DT ch43 (originally looks like it may have been an analog on 43) for Columbus... I would guess this also could have something to do with changing the COL to ackerman from MS State.
Also looking at the DT coverage for WMAB-DT and WMAE-DT leads me to 1 idea.
WMAA-DT will have a great signal in Columbus, Starkville & Tupelo.
WMAB-DT 47dbu contour slices Tupelo and covers Columbus fairly well I think.
WMAE-DT covers Tupelo well.
So my wild guess but WMAA could easily run 5 sd streams for educational, government, and other alternative programing just the same way KET does with some of their channels. KET in Kentucky runs up to 5 streams at some times on selected channels.
Here in Memphis
WKNO runs 3 different channels currently WKNO (analog), WKNO-HD, and WKNO2 on the DT signal. They have also have a CP for a new DT on channel 56.
WPXX has i on 50.1, PAX 50.2, WORSHIP 50.3, 50.4 is think is Daystar all SD streams
& WBUY-DT 41 is now broadcasting all five TBN networks:
TBN, The Church Channel, JCTV, TBN Enlace USA and Smile of a Child.
MPB is applying for CH26 for a digital channel in Clarksdale at a low power level
MPB had these apps but i guess they cancelled them for some reason.. I no longer see it
MISSISSIPPI AUTHORITY FOR
EDUCATIONAL TV
ERP(VIS): 760 kw; HAAT: 96 meters
Tower Site: 0.21 km E of intersection
of White Street with Davis Avenue,
Cleveland, MS
File No. BPET-960919KJ
MISSISSIPPI AUTHORITY FOR
EDUCATIONAL TV
ERP(VIS): 769 kw; HAAT: 11 meters
Tower Site: East Side of US E49 .8 km
N of intersection with US W49,
Yazoo City, MS
File No. BPET-960919KM
Robert A. Woods, Esq
CLARKSDALE, MS ... CH-*21
MISSISSIPPI AUTHORITY FOR
EDUCATIONAL TV
ERP(VIS): 767 kw; HAAT: 94 meters
Tower Site: N side of US 61, 0.9 km
N of Compressor Station 4 km SW of
Clarksdale, MS
File No. BPET-960919KK
Robert Woods, Esq.