About a month ago, the Mexican government finally updated their official mediumwave station list, now dated June 30, 2011. Updates to this list do not come very often, perhaps every year or so. The previous list was dated December 31, 2009, 18 months ago. It's been a long time coming.
The list, in .PDF format, documents station location (city and state), owner, call sign, frequency, daytime and nighttime powers, and license expiration date or status. It is unfortunate that actual latitude and longitude coordinates of transmitter sites are not included. However, latitude and longitude can be extracted from the matching entry in the US FCC database if you look carefully and wade through the huge number of redundant and outdated Mexican records to find the right one. I am working on creating a combined list using my Radio Data MW program. That will allow the creation of a list in many forms, sorted at will by call sign, frequency, power, location, signal strength, etc.
To my knowledge, Mexico does not maintain an internet downloadable, official database in file form like the FCC or Industry Canada does. It would be nice if they did.
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