The independent site for Digital Radio Mondiale (DRM) in North America (NA).
At the conclusion of the conference, attendees were taken to the WEWN transmitter site in nearby Vandiver. Thanks to the EWTN staff for the wonderful lunch and tours. Special thanks to NASB for another excellent conference! It is always excellent spending time with friends, old and new.
Christopher Rumbaugh of DRM North America presented a DRM update and demonstrated the CML Micro DRM-1000 chipset and development kit. He also gave news about SolarGrove N88 (a DRM1000 chip based receiver).
Jerome Hirigoyen of Telediffusion de France (TDF) gives his DRM Cast update. This is an update from the device and concept first presented at NASB 2019.
Brady Murray of WWCR spoke about the major winter storm in January 2026 that took all of their transmitters off the air for days, and some for weeks. Brady, Phil and staff used some creativity to repair cooling equipment that froze and burst during the storm and power outtage.
Mike Sabin of new NASB associate member Trans World Radio talks about what's left of KTWR in Guam, and how TWR has replaced it with broadcasts to Asia from various sites throughout the region.
Eike Bierwirth presenting about his comprehensive online databases of shortwave broadcasts by time and frequency, making it easy to identify stations or to find a broadcast that you would like to hear. http://www.eibispace.de/
Calvin Carter from Continental Electronics presented information about their new solid-state shortwave transmitter.
Presentation by Steve Herman, former chief White House correspondent and chief national correspondent for the Voice of America. Steve is now Executive Director of the Jordan Center for Journalism Advocacy and Innovation at the University of Mississippi. He will announce details of his new weekly podcast and radio program (including on shortwave via WRMI) "America@250: Due Diligence." Steve also…
At long last (after the Covid pandemic and other issues) NASB 2026 will be returning to the EWTN transmitter site in Irondale, nearby Birmingham Alabama. I am planning to attend and look forward to reuniting with many friends and hopefully making new ones! Make a plan to join us. SWL and industry folk are heartily welcomed.
Pop Shop Radio DRM Canada Day special: 2 July 2025 0300 UTC on 11960 kHz in DRM from Woofferton to North America. Thank you Tony!
VON Plans Antenna Reactivation, Broader African Broadcast. Read the whole article here . Of note: "Reactivate the Digital Radio Mondiale (DRM) shortwave rotating transmitter, the largest in Africa" "Add three new languages to its broadcast lineup: Chinese Mandarin, Bahasa Indonesia, and Portuguese, bringing the total to 11 languages"
Please watch this video. It is from Gambia's QTV with an episode on groundbreaking educational use for DRM. I couldn't figure out how to embed the video so you will have to follow the link.
From the DRM Consortium website: Solar Grove Solutions a leading innovator in consumer electronics based in Florida, USA, known for making accessible devices, has just announced the commencement of manufacturing its All-Band (MW, SW, VHF – FM) Analog and Digital Radio Mondiale (DRM) receiver model N88 in India. This is a significant step towards delivering cutting-edge technology at accessible…
Our beloved friend Terje speaks to us from behind the veil. His good friend Mike has rebuilt his webpage and we once again can enjoy it. https://hobbyradio.se/ is now available. Terje Isberg (SK) is the developer behind DRM-Log Plotter software, and other DRM related analysis software. Terje passed away in 2022. He was a brilliant person, a polyglot (Swedish, German, English, Japanese), an…
For those following the HFT "High Frequency Trading" on HFBC/Shortwave frequencies debate, I have news! The FCC has sided with legitimate users of the frequencies (eg. SW Broadcasters) this time! A win for #SWL https://docs.fcc.gov/public/attachments/DA-25-70A1.pdf https://docs.fcc.gov/public/attachments/DA-25-71A1.pdf https://docs.fcc.gov/public/attachments/DA-25-67A1.pdf
Above: Image of emergency broadcast test 17700kHz coverage simulation Lots of DRM activity going on in China! It was reported via a Japanese listener on WOR that on 29 October 2024 an emergency broadcast test occurred on 17700 kHz in DRM mode, broadcasting weather in Sichuan Province. <https://mp.weixin.qq.com/s/VIoFE3zpt1H8ncTAlCY86A> B24 DRM schedule of CNR release 8 November 2024: Beijing 13825…
WMLK has been reported testing DRM on 9275 kHz around 23:00 UTC. They were seen using Mode B 10kHz, xHE-AAC Stereo 17.46kbps. Text of "WMLK Radio DRM transmission with Ampegon TSW2300 transmitter - stay tuned @ 9275kHz". That equipment is capable of 150 kW mean power with 9 dB crest factor. HFCC shows they are targeting Europe on that frequency at that time. It is thought the DRM ID intro to their…
Several DRM aficionados in China are receiving a BritAsia broadcast on 21575 kHz. It is being identified as "BritAsia pop up DRM service for India". Reports suggest a strong signal in China of SNR 25dB at 14:20UTC on 9 Oct 2024. From the DRM ID E1C123, this is likely originating from Woofferton.
Take a look at the DRM update slides as presented at IBC 2024.
Interesting discussion of Nationwide broadcasting using DRM. Many European countries could easily shift to DRM for their broadcasting needs now that the CML DRM1000 chip is available for receivers. In North America, national broadcasting services such as NPR could shift to DRM for signal delivery - if only DRM was permitted on AM/MW and FM.
@MohanNataraja16 on Twitter (X) received Radio Free Asia (RFA) DRM test broadcast in Mandarin on 11700 khz in London, UK on June 11, 2024 at 2100 UTC . No further information is known about the test and it is unknown from where it was broadcast. RFA is operated by the US government and "...provide(s) independent, uncensored and accurate local news to a weekly audience of nearly 60 million who lack…