Tag Archives: AM Radio

FCC championing change that could “Bolster AM Radio”

FCC Commissioner Ajit Pai

It appears that FCC Commissioner, Ajit Pai, is pushing a plan to revitalize declining AM radio station and listener numbers in the US. Read some of the details below or the full article on the New York Times website.

Many thanks to David Goren for the tip!

(Source: NY Times)

The [The Federal Communications Commission] announced late Thursday that it would begin seeking public comment on numerous changes[.]

[…]Because of interference caused by consumer electronics, smartphones and the like, AM radio often seems to deliver mostly static. The AM audience has fallen to 15 percent of all radio listeners, down from 50 percent as recently as 1978. While the FM audience has fallen as well, it draws more than five times the audience of AM.

[Steps include] eliminating a regulation requiring stations to prove that any new equipment decreases interference with other stations — a requirement that is expensive, cumbersome and difficult to meet.

The F.C.C. has also proposed eliminating or loosening rules that govern nighttime transmissions by AM stations. Those regulations currently require many AM stations to reduce their power or cease operating at night to avoid interference with other stations.

[…]The current regulations make it difficult for AM stations to locate towers where they will not interfere with nearby stations at night. They also put conflicting requirements on stations, mandating that they still cover most of their broadcast territory even while operating at reduced power.

The proposed new rules, the commission said, aim at keeping more stations on the air at night.

[T]he F.C.C. said it was ready to make available to current FM stations what are known as FM translators — empty spots on the FM dial where AM stations can broadcast. Those are particularly valuable in urban areas, where tall buildings with steel frames or aluminum siding can block AM signals, degrading reception.

[Read the full article at the NY Times website…]

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The rise and decline of AM radio in Pittsburgh

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A portrait of Frank Conrad in 1921; holding a microphone in his hand (Source: Wikimedia Commons)

Many thanks to Jeff Brady who shared this article from the Pittsburgh Post-Gazette. While this article focuses on Pittsburgh’s AM radio scene, it’s certainly reflective of a common theme throughout the US and in other countries.

(Source: Pittsburgh Post-Gazette)

By Adrian McCoy and Maria Sciullo / Pittsburgh Post-Gazette

“Radio, as we know it, may have begun on a bet.

Frank Conrad, assistant chief engineer for Westinghouse in the early 20th century, wanted to see whether a new watch was keeping correct time. In 1912, he made a $5 wager with colleague Thomas Perkins. But how to verify his claim?

Tinkering with materials in his Wilkinsburg garage, Conrad created a small receiver capable of picking up time signals from the U.S. Naval Observatory in Arlington, Va.

He won his bet and went on to design bigger and better radios for Westinghouse. In turn, Westinghouse became a key player in turning the hobby of a few radio enthusiasts into an industry that changed the world.

Pittsburgh’s radio history is the history of modern radio.

For AM radio — and the radio industry in general — the hits just keep coming. Rapid technological changes, government legislation, aging demographics and a shifting media landscape have combined to erode AM’s once massive audience. Better clarity through FM, HD and satellite, and more diverse programming have resulted in AM leaning heavily on two formats: talk and sports.

Still, it all started here.” [Continue reading…]

For more information about Frank Conrad, check out this biography on Wikipedia. Read the full Gazette-Times article The Rise and Decline of AM Radio by clicking here.

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ABC video highlights the Dooen transmitter on World Radio Day

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The Dooen tower "hat" (photo: ABC)

(Source: Australian Broadcasting Corporation)

Standing 201-metres tall with a 19-metre wide capacitive ‘top hat’, the 3WV mast in western Victoria stands out in the vast flat landscape that stretches below it.
Celebrating 75th years of service, the occasion of World Radio Day seemed a worthy time to pay tribute to this impressive technological structure.

“It really meant a lot to us. It must’ve been a big undertaking in 1936 to build it because cranes and things that are about today weren’t even heard of,” says long time Horsham resident James Heard.

And while the locals are proud of the trusty Dooen mast, its power reaches far wider than just this wide brown land.

In fact 594 AM has even been heard as far as Canada, Japan and South Africa.

The staggering reach is aided by the distinctive ‘top hat’ and the low frequency of the AM band. While obviously a success, the antenna was the first of its kind in Australia and acted as a prototype for other services.

“It’s the first solid-state 50-kilowatt broadcast transmitter installed for the ABC and it was the test bed for the installations across the rest of the country,” says Tim Hughes, Transmission Coordinator for ABC Victoria.

So whether you’re tuning in from snowy Canada or just down the road, thanks be to the 3WV transmitter.

I’m sure many an ultralight DXer would like to snag this transmitter! Watch the 3+ minute video on the ABC website.

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How to turn your AM radio into a metal detector

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Really? This radio could find a missing toy?

While watching Curious George on PBS Kids with my four year old, I learned something. In the episode we viewed–“Curious George, Metal Detective”–George needs a metal detector to find a toy robot he’s lost in the sand, but the one he’s borrowed has run out of batteries. “How about making one?” his scientist friend suggests. Make one? “It’s easy,” she explains: simply by taping an AM radio and calculator together, you can make your own metal detector. George tries it, and–lo and behold–finds his missing toy.

Really? I wondered. Was this PBS show feeding my skeptical children science fiction?

I quickly googled the notion, and apparently, it works! Watch the video below for a tutorial on building your own deluxe model:

Lessons learned? You’re never too old to learn from Curious George, PBS, or the fellow in this video. And radios are clearly even more versatile than even I guessed.

Now, back to metal detecting…Is that another soda can?

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