Category Archives: AM

Jack’s Mediumwave Lazy Susan Mag Loop System

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Many thanks to SWLing Post contributor, Jack Blanke (WB5LVP), who writes:

I stole this idea from another SWLing Post contributor and I hope he won’t mind.

However, placing the Ferrite Antenna near the center of the loop does enhance its performance and the Lazy Susan was something I had been using long ago to quickly re-orient the radio azmuth to accommodate the signal source. But, like my mentor, minor improvements like this can really enhance performance of smaller portables on medium wave. He used cardboard and I used scrap wood from the work shop. Either way, not much money was involved in this minor enhancement.

These inexpensive additions to the listening post really make the PL380 and the AN200 combo provide hours of enjoyment from medium wave DXing. Now,if only I can find the gent’s name who came up with this little gizmo, I’d love to thank him!!

73’s!

Thanks for sharing your setup, Jack! I can assure you that Rich Stahl (WR3V) will be happy you “stole” his idea. That’s what it’s all about–helping each other! I love the little table/stand you built for the portable and how it perfectly accommodates the loop. Great job!

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Cook Islands restores AM broadcast service

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Sunset on the Cook Islands (Photo by Gary DeBock)

(Source: Radio New Zealand)

The signal was lost in August when the main transmitter’s rusty mast on Rarotonga was dismantled.

Radio Cook Islands’ general manager Jeanne Matenga said Blue Sky, which manages the network, reactivated a smaller transmitter near the airport late last week.

She said the government seemed to be worried about the absence of a radio signal to some parts of the country as the cyclone season neared.

“People in Aitutaki can hear it and I got a text message from someone in Mitiaro saying they could hear it there as well.

“If it reaches Mitiaro, it will get Atiu and Mauke because those islands are very close to each other. Possibly Palmerston might be able to get a signal too because it’s closer to Aitutaki, and the Northern Groups still have their FM.”

Click here to read at RNZ.

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Rolf experiments with MW antenna coupling

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Many thanks to SWLing Post contributor, Rolf, who writes:

I made a great discovery tuning using a second passive analog radio.

When I tune to Radio Caroline, for example, on my portable I can receive the signal okay. When I put the receiving radio on minimum then place it next to and couple it with the second radio, it is receiving a lot better!

Even stations I could hardly hear, now i can hear them!

Check out my short demonstration video:

Click here to view on YouTube.

That is fascinating, Rolf. Thank you for sharing. Indeed, this is one of the reasons why I try to maintain a good distance between radios when comparing them in reviews. In this case, though, you’re using coupling to your advantage!

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RadioTapes.com: a treasure trove of airchecks from the Minneapolis/St. Paul markets

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Cassettes

Photo by Ar Meftah

One of our contributors on the Shortwave Radio Audio Archive, Tom Gavaras, has been sharing some brilliant airchecks. I also discovered that Tom runs an amazing site simply chock-full of Minneapolis/St. Paul airchecks. Tom writes:

Hi Thomas,

[…]As an FYI … I own/run a website called RadioTapes (www.RadioTapes.com). It features more than 2,000 airchecks of Minneapolis/St. Paul radio stations dating back to 1924. You will also find some shortwave recordings that I previously posted (on the Special Postings page).

In addition to my collection, the website includes airchecks provided by more 100 contributors. RadioTapes also has a Facebook page with 1,400 followers.

Post readers: I strongly suggest you check out Tom’s amazing archive of airchecks.  If you ever lived in or DXed the Minneapolis/St. Paul market, you’ll certainly hear some familiar voices and IDs.

Thank you Tom!

Click here to check out RadioTapes.com.

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DRM: a solution to the “medium-wave problem”–?

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(Source: Radio World)

Is medium wave in decline? Some people think so.

In the 1950s radio was declared mortally wounded by TV. But then FM with its new music rescued it, becoming one of the most successful technologies and platforms ever. Radio survived and thrived but AM should have died at the hands of the nimbler, younger and more attractive FM.

Only it did not and the medium reinvented itself by using presenter-led programming, commercial music and sport. In the United States it took until the end of 1990s for the FM and AM audiences to be equal and to this day the big AM stations are going strong, bringing in the ad dollars.

REASONS

Still, it’s undeniable that the whiff of decline has enveloped AM in the past two decades. The reasons are well-known: Analog medium wave doesn’t always deliver the best sound, it can suffer from interference, it can behave annoyingly different by day and night and even by season. Medium wave mainly appeals to a maturing population (a global phenomenon, considered shameful by some!) using aging receivers (this is bad!).

[…]

THE SOLUTION

Recently cricket fans were able to enjoy an open-air demonstration of three different DRM programs on one frequency ahead of an important match in Bangalore. The fans also received data (stock exchange values) available on radio screens. This demonstrated that digital DRM is a game changer for medium wave.

In DRM the crackling audio disappears as sound is as good of that on FM. The electricity consumption and costs decrease, the spectrum is trebled and reception, even in cars (as available in over 1.5 million cars in India currently) is excellent, too.

If it is so good then why isn’t DRM medium wave conquering the world faster? Maybe it’s about confidence in a new platform. Broadcasters and governments need to market DRM digital radio once signals are on air in their countries.

As for receiver availability and their costs, let us remember how many receivers were on sale in the 1970s when FM was taking over the world. Nowadays, many listeners consume radio in their cars rather than sit in front of a retro looking wooden box. Digital receivers (DRM alone or DRM/DAB+) are a reality and a bigger push for digital would help with volumes sold thus bringing down the prices.[…]

Click here to read the full article at Radio World.

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Mediumwave DXing: Radio setup offers “cheap thrills”

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Many thanks to SWLing Post contributor, Rich Stahl (WR3V), who shares his frugal but effective mediumwave DXing setup:

My MWBC directional reception on the cheap (see photo above):

Tecsun PL-310ET $40.85
Tecsun AN200 loop $12.95
Walmart Lazy susan $7.95
Cardboard box -0-

Total $61.75

Who says its an expensive hobby?

Indeed! That’s a very basic, yet very effective setup, Bill. Thanks for reminding us that this doesn’t have to be an expensive venture!

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