Hello friends,
The North American spring time change is now complete. WINB’s schedule stays with Eastern time, so the Shortwave Radiogram broadcasts on WINB are now Thursday 2330-2400 UTC and Saturday 0230-0300 UTC on 9265 kHz — same local times in most of North America.
The only Shortwave Radiogram frequency on WRMI that stays on Eastern time, thus shifting by UTC, is 9955 kHz. SWRG is now Sundays at 1430-1500 UTC on 9955 kHz.
All other WRMI frequencies for Shortwave Radiogram stay with UTC, so note changes in your local time. The transmission schedule below reflects the new times.
One of the news stories in this week’s Shortwave Radiogram is about a planned DRM (Digital Radio Mondiale) portable radio to be made in India. I have been experimenting with and demonstrating DRM since the technology began just after the year 2000. It’s great when it works. It eliminates the fading that many people, who are not frequent shortwave listeners, find annoying. Background noise is eliminated. But DRM can tolerate only so much reduction in signal strength, or interference, or noise — all conditions that are typical on shortwave.
If this radio does come to the market, I’m sure several North American shortwave enthusiasts will purchase it. There are no longer any DRM capable shortwave broadcast transmitters in the Western Hemisphere, except for USAGM at Greenville, North Carolina. For the most part, we North Americans will have to receive DRM from European transmitters. I would like to see side-by-side transmissions across the Atlantic of DRM, analog audio, and our Shortwave Radiogram technique of digital text via analog carriers. Let’s find out which best copes with the rigors of shortwave propagation. With the internet increasingly blocked, shortwave may find new purpose.
A video of last week’s Shortwave Radiogram (program 344) is provided by Scott in Ontario (Wednesday 1330 UTC). The audio archive is maintained by Mark in the UK. Analysis is provided by Roger in Germany.
Here is the lineup for Shortwave Radiogram, program 393, 13-19 March 2025, in MFSK modes as noted:
1:45 MFSK32: Program preview
2:59 MFSK32: A new portable DRM receiver made in India*
7:24 MFSK64: NASA fires chief scientist, and more cuts
9:56 MFSK64: This week’s images*
27:39 MFSK32: Closing announcements
* with images
Please send reception reports to radiogram@verizon.net
And visit http://swradiogram.net
Bluesky: swradiogram.bsky.social
Twitter: @SWRadiogram or https://twitter.com/swradiogram
(visit during the weekend to see listenersā results)
Facebook group: https://www.facebook.com/groups/567099476753304
Shortwave Radiogram Gateway Wiki: https://wiki.radioreference.com/index.php/Shortwave_Radiogram_Gateway
Shortwave Radiogram Transmission Schedule
Other Shortwave broadcast programs that include digital text and images include The Mighty KBC, Pop Shop Radio and Radio North Europe International (RNEI). Links to these fine broadcasts, with schedules, are posted here.
Thanks for your reception reports!
Kim
Kim Andrew Elliott, KD9XB
Producer and Presenter
Shortwave Radiogram
Reporting on international broadcasting at https://twitter.com/kaedotcom
Fuente: https://swradiogram.net/
CategorĆas:Broadcasting
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