Letter to the Editor: AM Stereo Is Still an Option (Radio Wo
Jun 14, 2020 2:55:18 GMT
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Post by Boomer on Jun 14, 2020 2:55:18 GMT
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More:
radioworld.com/columns-and-views/readers-forum/letter-to-the-editor-am-stereo-is-still-an-option
The Internet says that all patents have expired on the C-QUAM AM stereo system, which is the official standard for AM stereo, making it cheaper to operate, no licensing or ongoing fees.
That might be good for the smaller, independent AMers who have gotten an FM translator for their stations and are now running music formats.
Research shows some Nautel AmpFet transmitters come with installed AM stereo exciters. Delta makes exciters as add-ons for mono transmitters. Here's a newly built transmitter with built-in C-QUAM stereo:
kwlbroadcast.com/go/site.php?page=products&do=det&pid=22
Boomer
Want revitalization? Mandate AM stereo in any FM stereo radio.
A recent Radio World article about an AM monitor receiver included the author’s comment, “No, analog AM stereo is not making a comeback.”
Please know 100 stations in the United States still broadcast in C-QUAM AM stereo, and there are more returning. A Class B AM station in the New Orleans market will be starting C-QUAM as I write. There is one in Texas and more thinking about it. Australia has announced four stations there will be begin C-QUAM stereo transmissions in the next month or two.
It’s a shame that auto receiver manufacturers do not include C-QUAM in their products. But thousands of AM stereo car radios are still in use in Australia. In the U.S., that number will likely be higher since cars are now peaking in their lifespan, averaging as much as 17 years; with over 250 million on the road, that can mean a fairly large number out there still with a C-QUAM-capable radio, not to mention that certain HD car radios can decode C-QUAM, though not in wide bandwidth fidelity.
A recent Radio World article about an AM monitor receiver included the author’s comment, “No, analog AM stereo is not making a comeback.”
Please know 100 stations in the United States still broadcast in C-QUAM AM stereo, and there are more returning. A Class B AM station in the New Orleans market will be starting C-QUAM as I write. There is one in Texas and more thinking about it. Australia has announced four stations there will be begin C-QUAM stereo transmissions in the next month or two.
It’s a shame that auto receiver manufacturers do not include C-QUAM in their products. But thousands of AM stereo car radios are still in use in Australia. In the U.S., that number will likely be higher since cars are now peaking in their lifespan, averaging as much as 17 years; with over 250 million on the road, that can mean a fairly large number out there still with a C-QUAM-capable radio, not to mention that certain HD car radios can decode C-QUAM, though not in wide bandwidth fidelity.
More:
radioworld.com/columns-and-views/readers-forum/letter-to-the-editor-am-stereo-is-still-an-option
The Internet says that all patents have expired on the C-QUAM AM stereo system, which is the official standard for AM stereo, making it cheaper to operate, no licensing or ongoing fees.
That might be good for the smaller, independent AMers who have gotten an FM translator for their stations and are now running music formats.
Research shows some Nautel AmpFet transmitters come with installed AM stereo exciters. Delta makes exciters as add-ons for mono transmitters. Here's a newly built transmitter with built-in C-QUAM stereo:
kwlbroadcast.com/go/site.php?page=products&do=det&pid=22
Boomer
