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Transmission Tower Collapse Knocks Three AM Stations Off Air in Mexico City

exbloguero

exbloguero


A 120-meter radio transmission tower collapsed early Tuesday at facilities operated by NRM Comunicaciones, knocking three AM stations off the air, according to industry sources.

The structure, a vertical antenna designed at approximately a quarter-wavelength for medium-wave broadcasting, served XEPH-AM, XEBS-AM and XEOY-AM — the latter a Class A clear-channel outlet.

Preliminary reports indicate the collapse occurred in the early hours of May 5, causing an immediate interruption of transmissions. No injuries were reported, though technical equipment and parts of the ground radial system sustained damage.

Authorities have not yet confirmed the cause of the incident. Specialists note that structures of this type — often exceeding 100 meters depending on frequency — can be vulnerable to factors such as strong winds, guy-wire failures or long-term structural wear.

Technical personnel from the company have begun assessing the damage and working on a restoration plan. There is no official timeline for when the affected stations will return to the air.

Civil protection authorities responded to secure the area, and access restrictions remain in place around the site.

NRM Comunicaciones has not issued a detailed official statement but is expected to provide updates on the cause of the collapse and the status of its operations in the coming hours.
 
Always interesting to hear about North America's biggest radio market: Mexico City. (Sorry New York.) As David tells us, the AM dial may be dying faster in Mexico than in the U.S. Most AM stations in small to medium markets have migrated to the FM dial. But in the largest markets, such as CDMX, and along the U.S. border, the AM dial is populated by stations trying to hold back the tide.

As Exbloglobo tells us, one of the stations knocked off the air is clear channel XEOY 1000. According to Wikipedia, it airs English and Spanish Contemporary music some hours and news/talk others. It is Class A, along with 1000 WMVP Chicago and 1000 KNWN Seattle, which are 50,000 watts at all times. But XEOY drops its power at night to 20,000 watts. That may be because it doesn't want to install a directional antenna for nighttime use. So it reduces power on its single tower rather than stay at 50,000 watts with a multi-antenna array.

The other two stations apparently simulcast a Tropical music format known as "Sabrosita." XEPH is at 590, 25,000 watts days and 10,000 watts nights. 1410 XEBS has the same power plan.
 
exbloguero said:
The structure, a vertical antenna designed at approximately a quarter-wavelength for medium-wave broadcasting, served XEPH-AM, XEBS-AM and XEOY-AM — the latter a Class A clear-channel outlet.
Click to expand...
A tower for stations on 590, 1000 and 1410 can’t be quarter wave on all three b
 
davideduardo said:
A tower for stations on 590, 1000 and 1410 can’t be quarter wave on all three b
Click to expand...
From what I've been told, the tower is 120 meters tall, but I could be mistaken.

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The advantage is that they have an auxiliary tower on the same premises, based on their experience from 20 years ago.

def.png
 


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