Sunday, September 13, 2009

XELO and the Border Blasters

As most readers of this blog know, south of the U.S. border were radio stations that broadcasted far beyond the 50,000-watt limit assigned to U.S. clear-channel stations like KAAY.
These "border blasters" typically operated at 150,000 watts and directed northwards their mix of music with relentless ads for dubious medical cures and cosmetics.

Here is a short intro from the Modesto Radio Museum web site (
Many radio broadcasters in the 30's moved South Of The Border to avoid Broadcasting regulations and liability. So-called Mexican "Border Blasters" were licensed commercial radio station that transmitted at very high power to the United States of America from various Mexican cities near the border beginning in the 1930's and continuing into the 80's. There were many such stations licensed by Mexico's Secretary of Communications and Transport (SCT) using transmitters with an output far in excess of licensed commercial stations located within the USA. The primary reason for the high powered stations was to escape United States regulations regarding power and frequency assignments.

As was the case between the 1930's and the 1970's, some border blasters in areas near larger American border cities such as San Diego are leased out by American broadcasting companies and air English-language programming targeting American audiences. The American side leases the station from the Mexican station owners/licence holders and feeds programming from their American studios to the Mexican transmitters via satellite.

Perhaps the most famous personality from the Border Blasters was Wolfman Jack, who broadcasted from XERB. You can read about the Wolfman's colorful life south of the border at these links:
There is a great book by Gene Fowler and Bill Crawford, Border Radio (Univ. Texas Press 2002); see

But the topic of this post is XELO, one of the historic Border-Blaster stations.

XELO was originally in the Tijuana/Rosarito area of Baja California, Mexico. Later, it moved to Juarez. It was notable for its mix of music and those aggressive advertisements, and perhaps its most famous presenter was Woody Guthrie, who spent three tumultuous weeks at the station:

Woody was arrested and expelled from the country by Mexican police, who misunderstood his jest, after receiving some fan mail from Canadian listeners, that "he smuggled some songs into Canada"! See this link at Google books for the details.

XELO had a huge broadcast range, as shown by this graphic:

XELO's listeners included Gary Wegner and Ron Henselman in Chicagoland. Gary recorded these clips, of XELO's "Record Roost" show: (There's quite a cast of characters here!)

(click here to download)

(or click here to download)

(or click here to download)

(or click here to download)

Gary also requested and received a Record Roost poster:

Wow --- 150,000 Watts for this cast of characters! This was not at all unusual in the glory days of the Border Blasters.

XELO still broadcasts these days, emphasizing Spanish-language programming.

Thanks to Ron Henselman for forwarding this material!

---Dave S.

P.S. Ron has more stories about Border Blaster stations, to come....

P.P.S. The photo and XELO graphic are from a Google Books page documenting the Fowler and Crawford text. It is not my intention to violate anyone's copyright, so these will disappear if the authors request that I remove them. (In the meantime, I suggest you buy their book! :-)


  1. I remember, as a kid, "logging" XELO and listening to them. In fact, I still have those sheets of notebook paper with all the stations I heard. KAAY was down the log a bit. Thank you, Ron & Dave! Bud S., Mobile, AL

  2. Any truth to the rumor that the U.S. imposed secret signals onto the XELO broadcast to communicate with subs at sea during WWII? Thus hiding the signal from the German and Japanese navies.

  3. i have a friend who has been trying to find a copy of "along the santa fe trail" by Ben Light trio. i understand that this version was used to open some of the shows on XELO radio in 1948. any idea where i could find this?

  4. off topic - but does anyone reading this know anything of a Dr. Jazzmo who was on XERF in the late 50's or mid 60's?

    1. Yes. And he was either followed or replaced by the Wolfman, who was probably later Wolfman Jack. I'm talking 1959-60.

  5. In the 1960s I had sent a letter to: Cousin Billy, Care of XELO's Record Roost, Post Office Box 188, El Paso, Texas, 79942 and received an antenna topper. I was using an Unelco Electronics Corp Model 1914, Shortwave receiver with 4 coil sets, 1 - 0.54-1.6 MHz, 2 - 1.4-3.3 MHz, 3 - 3.3-5.6 MHz, 5 - 9.4-17.8 MHz. I mainly did AM DXing and still have it and all the memories. It was a Christmas present that I had chosen out of the Sears Wishbook and still cherish it.
    73, Dennis KA7HQP