Tag Archives: shortwave

Extended HE-AAC: DRM to upgrades audio codec

drmlogoMany thanks to SWLing Post reader, Mike, for sharing this news item on RadioInfo:

(Source: RadioInfo)

The latest upgrade to DRM’s audio codec was demonstrated in a presentation at this week’s Digital Broadcasting Symposium in Kuala Lumpur.  Digital Radio Mondiale (DRM) is the first global broadcast standard to adopt the Extended HE-AAC (xHE-AAC), which promises improved quality for DRM broadcasts in SW, AM and FM.

Alex Zink, the Senior Business Development Manager for Digital Radio at Fraunhofer, outlined the benefits of DRM in emergency situations, particularly the ability of DRM transmissions to signal receivers to turn on automatically and deliver emergency warning messages in a crisis.

“Unlike consuming radio on a smart phone, there is no gatekeeper in between digital free to air broadcasting and the consumer,” said Matthias Stoll in his presentation during the afternoon workshop.[…]

Read more at: http://www.radioinfo.com.au/news/new-audio-codec-drm-digital-symposium-2014 © Radioinfo.com.au

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Shortwave Radio Recordings: Radio Progreso

Radio-Progreso-CubaFor your listening pleasure: one hour, twenty eight minutes of Radio Progreso (Cuba), recorded on February 28, 2014 starting around 2:15 UTC on 4,765 kHz. Though I’m not certain, I’m pretty sure this includes a radio soap opera.

Click here to download the recording as an MP3, or simply listen via the embedded player below:

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Horizon FM Tenerife now on shortwave

524px-Tenerife_locatorThanks to Mike Barraclough for this info:

“Horizon FM Tenerife has started broadcasting on shortwave on 5,780 [kHz], 75 watts at the moment, short English announcement on their website.”

More information can be found here along with an announcement that Horizon plans to increase output power to 1kW within the next three weeks.

Mike originally posted this info on the Cumbre DX FB page.

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HFCC Conference: “Shortwave remains essential”

ABU-logo(Source: Asia-Pacific Broadcasting Union)

“Short wave will continue to be an important part of broadcasting, a coordinating conference hosted by the ABU in Kuala Lumpur has been told.

The 10th Global Shortwave Co-ordination Conference of the High Frequency Coordination Conference (HFCC) with the ABU and the Arab States Broadcasting Union (ASBU) from 20-24 January 2014 is part of the regular twice-yearly seasonal management of shortwave frequencies around the globe to coordinate usage and minimise interference.

Mr Bassil Zoubi, Head of Transmission at ASBU, said: “Shortwave programs will continue to be vital in addressing and communicating with some important parts of the world, especially with Internet penetration in the Arab countries around 34% while in some other parts of the worlds it is less than 10%.”

He said the ASBU had adopted T-DAB+ as a delivery platform for regional audio broadcasting, though the union continued to support [shortwave] DRM as a important delivery medium for international as well as national coverage, which was why the ASBU was calling for a universal radio chipset.

HFCC Chairman Mr Oldrich Cip said shortwave radio was important for travellers and isolated people, and it reached across the digital divide to the most disadvantaged and marginalised societies.

The International Federation of Red Cross and Red Crescent Societies had underlined this role of wireless radio in the 2013 World Disaster Report.

“It said that marginalised populations may not have the money or the knowledge to take advantage of the digital revolution,” Mr Cip said. “The report has noted that with only six per cent of people in low-income countries using the Internet in 2011, the digital divide was still stark and therefore access to low cost media technology was really the key.”

He also urged the conference that effort was needed to ensure that terrestrial broadcasting was part of the framework of the Global Strategy for Disaster Risk Reduction.

ABU Director of technology Dr Amal Punchihewa reiterated the importance of ensuring there were mechanisms in place to deliver information technology to the most needy and vulnerable populations around the globe.

“The ABU will continue to work with our partners to ensure this technology will survive and thrive for the benefit of the population, in times of crisis, in areas of isolation and at the most vulnerable times,’ he said.

Mr Gary Stanley, Rapporteur of the HFCC Steering Board, thanked the ABU for hosting the conference and said shortwave radio was still very important for disseminating news and information to regions where Internet penetration was low and other ways of receiving international media were limited.”

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The Tuckerton Tower’s long (and unlikely!) history

The Tuckerton Tower circa 1916 (Souce: Tom Mcnally mcnally.cc)

The Tuckerton Tower, circa 1916 (Souce: Tom Mcnally mcnally.cc)

I love radio history, and I dive right into it when something especially piques my interest. This morning, a news item from a local newspaper in New Jersey about that state’s famed, but nearly forgotten, Tuckerton Tower did just that.

Built in 1912, the Tuckerton Tower was once the tallest structure in the US.  Indeed, it was at that time the second tallest structure in the world (the Eiffel Tower had it beat by 243 feet).  Though on US soil, it was originally built by––get this––the German government, in order to communicate with an identical tower in Eilvese, Germany (see comments); of course, it also communicated with naval vessels. According to many sources, the US government may have been completely unaware of the construction of this communication monolith until it neared completion.

But that’s just the beginning of the story:  When the US entered WWI, the US government took over the tower’s operations and placed Tuckerton’s German operators and engineers in a POW camp.  Then, post-war, the newly-formed Radio Corporation of America (RCA) assumed the tower’s operation with the intention of using it for the latest and greatest innovation in radio communications: voice over wireless. Tuckerton Tower continued under RCA’s operation until the US government drafted it into service again, this time during WWII.

But even though the tower survived two world wars, weather events like nor’easters, and The Great Depression, by the late 1940s it was considered obsolete. Several attempts were made to preserve the historic structure, but on December 28, 1955, it was torn down and cut for scrap.  Today, a lower section of the tower can be viewed at the Tuckerton Historical Society’s museum, while the concrete block anchors that once held the monolithic structure upright now rest, somewhat defiantly, in the center of a residential area.

If you find this tower’s history as remarkable as I do, check out this informative and detailed article in The Sandpiper and Tom McNally’s History of Tuckerton Wireless which includes some excellent photos of the tower throughout history.

Are there any readers of The SWLing Post with memories long enough to remember the Tuckerton Tower, or who have heard stories about it?  Please comment!

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Bill helps with low-power, license-free broadcasting

HobbyBroadcasterIn reference to our post, Dave’s FM Station Empire, SWLing Post reader Bill writes:

Nice article on the use of low power broadcasting. For the last 5 years my site, HobbyBroadcaster.net, has been helping radio enthusiasts along with schools and businesses learn how to use legal, low power, license-free Part 15 radio for a variety of uses. I created the site due to my involvement with starting a campus-limited high school station and discovering the lack of quality resources available for school-based broadcasters unable to obtain an FCC allocation. With many hobbyists also using this same technology on AM to serve their neighbors with micro radio it only seemed natural to expand the interest to hobbyists, too.

Also, Part 15 regulations allow for some use of the shortwave bands for experimental broadcasting with the most common frequency used by hobbyists being 13.56 MHz.

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