While going thru FM SCAN.org. According to the FCC database, XHLTN is 57.5 kw and 102M, but according to this website, XHLTN is 120kw and HAAT is 272m? Which information is correct? I thought XHLTN transmitter is located next to XETV tower on Mt. San Antonio?
Mexican stations frequently add horizontal and vertical powers for promotional and advertising sales purposes. This is not a "forbidden practice" in that country.
In general, free, third party data sites are not going to be 100% accurate due in part to the sheer volume of data they attempt to provide and also due to the delays and inaccuracies of the the source data, particularly for "developing nations."