The problem with KEYH, aside from the marginal signal, is that they are programming music, and music on AM is a non-starter. Forty years ago was the last time AM and FM were at parity for listeners, who began the migration to the greener pastures of FM. News/Talk and Sports are the dominant formats nowadays, and b the same token, News/Talk and Sports don't seem to do well on FM. I'm sure some of you remember News 92 FM, and I predict Desportes 93.3 will meet the same fate in due course.Not yet; 610 is still at their longtime site off West Road near I-45. Chuck Tiller might know a timeline for commencing operations at the KNTH location?
~35 years ago KEYH had a CP to move to 830 with 50kw daytime and 1kw night from a site north of Houston, dumping RF over the city and into the Gulf. Never built. I guess any revival of that idea would be pointless given the overall decline of AM radio. Also KGLA 830 in the New Orleans market might now be an issue (didn’t hit the air until sometime in the 1990s, IIRC.)
The latest KEYH STA expires on December 16. Will the FCC extend it further or pull the plug? Looks like there has been no progress on a new permanent site almost two years after the demise of the previous facility.
I believe the future of AM is digital. The MA3 format is apparently compatible with current HD receivers, and if there was more participation by the automobile manufacturers, penetration could be better. This would allow AM radio stations to broadcast with higher fidelity (at par or exceeding FM), in stereo, and Program Service Data. I understand WTAW 1620 in College Station is already broadcasting in digital, although I'm not sure whether it is IBOC HD or MA3.