Category Archives: DRM

India To Go DRM

In the broadcasting world, All India Radio has been an early adopter of DRM technology. I was pleased to find this article from the DRM Consortium via Andy Sennitt at RNW Media Network:

The Digital Radio Mondiale (DRM) Consortium has welcomed the Indian government‘s approval of All India Radio (AIR)’s ambitious plan of converting its vast broadcasting network to digital using the DRM standard. India is one of the first countries in the world to implement such an extensive and well-researched plan to upgrade its radio infrastructure using the global open DRM radio technology and thereby ensuring that it can maintain significant reach to its 1.2 billion strong population whilst delivering enhanced radio services.

India’s Cabinet Committee on Infrastructure on Thursday 8 April gave its approval to the proposal from the Ministry of Information and Broadcasting regarding 11th Plan of Digitalisation where Rs 9.20 billion (approx US$200 million) have been earmarked for AIR to convert to digital which will cover approx 70 per cent of the country. By converting to digital, AIR will deliver enhanced radio services that offer crystal clear sound, increase user experience with additional functionality such as automatic tuning by station name, interactive user interface through digital screens that offer slide-shows and many other services like EPG, Journaline.

The digitisation scheme involves the installation of over 40 digital (DRM capable) transmitters as well as other digital enhancements and networks for both state radio and television.

All India Radio (AIR) began moving towards digitisation with the adoption of the DRM standard after extensive field trials and tests since 2007 that was offering in their opinion the most ‘robust, reliable’ technology. Last year, it started a regular DRM broadcast from one of its high-power shortwave transmitters located at Khampur near Delhi and this year it acquired two high powered mediumwave DRM transmitters.

Source: DRM Consortium via RNW Media Network

Disco Music Via Shortwave and in DRM

The Disco Palace a radio station dedicated to disco music, has announced that they are now broadcasting disco music in stereo via shortwave radio and using DRM (Digital Radio Mondial) technologies. They are targeting North America and Europe with the following broadcasts:

Broadcast Frequencies
Europe from 1400-1500 UTC 6015 kHz
North America from 2000-2100 UTC 17755 kHz

The Disco Palace is based in Miami, Florida and owned by Alyx & Yeyi, LLC, is the first and only disco music radio station broadcasting in DRM on shortwave. Belgium-based TDP is the shortwave and DRM broadcast technical service provider of The Disco Palace.

For more information visit:

Modify An Icom IC-735 To Work DRM

The original IC-735 brochure.  Click to enlarge.

The original IC-735 brochure. Click to enlarge.

Are you a ham radio operator and/or SWLer that would like to dabble in DRM (Digital Radio Mondial) but don’t have a purpose-built  receiver? A friend recently brought to my attention a clearly-outlined DIY photo instructional for a modification you can make to the classic Icom IC-735 ham transceiver to add a 12 Hz downconverter and I.F. output jack.

If you’re handy with a soldering iron, view the PDF instructional created by Matthias Bopp (DD1US) for making this modification. The downconverter (along with many other DRM items) is sold by German firm, SAT-Schneider–follow this link to purchase it online for just 25 Euros.

logo_drmThough the IC-735 is primarily a ham radio transceiver, it has general coverage and makes for an exceptional shortwave broadcast receiver as well.  In fact, I have an IC-735 in my shack and use it primarily for SWLing. This unit was produced by Icom in the 1980’s; many are available now in the used market for around $325-450US. A great value for the money, especially if you also happen to be a ham.