I hope you are not exhausted from last weekend’s celebration of the 200th program of the Shortwave Radiogram series. Thanks for tuning in and decoding our somewhat special program.
A very interesting addition to program 200 is a special Ham-DRM edition, produced by Daz Man in Australia. Ham-DRM is derived from Digital Radio Mondial of the broadcasting world, but it does not require special receivers or transmitters. It does require software that can decode the Ham-DRM. Information about the software is here, as well as the remaining schedule: 0300-0330 UTC Sunday April 25 on 7780kHz, and 0800 UTC Wednesday April 28 on 5850kHz and 7730kHz (all frequencies from WRMI). If you want to practice decoding the Ham-DRM outside of a shortwave setting, the audio is available at SoundCloud.
As with all DRM and ll things digital, the signal must be above a certain threshold for anything to decode. The signal was good enough at an SDR South Australia during our Wednesday 0800-0830 UTC Ham-DRM broadcast, 7730 kHz from WRMI (16000 km):
Here is the lineup for Shortwave Radiogram, program 201, 22-25 April 2021, in MFSK modes as noted:
1:41 MFSK32: Program preview
2:45 SpaceX Starship will ferry humans to the Moon*
8:09 MFSK64: European public broadcasters face threats
13:57 This week’s images*
28:12 MFSK32: Closing announcements
* with image(s)
Please send reception reports to firstname.lastname@example.org
And visit http://swradiogram.net
Twitter: @SWRadiogram or https://twitter.com/swradiogram (visit during the weekend to see listeners’ 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
| UTC Day | UTC Time | Frequency | Transmitter | |----------|---------------|------------------|-------------------| | Thursday | 2330-2400 UTC | 9265 kHz | WINB Pennsylvania | | Friday | 0030-0100 UTC | 9265 kHz | WINB Pennsylvania | | Friday | 1300-1330 UTC | 15770 kHz | WRMI Florida | | Friday | 1500-1530 UTC | 13655 kHz DRM | WINB Pennsylvania | | Saturday | 0100-0130 UTC | 9955 kHz | WRMI Florida | | Saturday | 0330-0400 UTC | 9265 kHz | WINB Pennsylvania | | Saturday | 1330-1400 UTC | 15770 kHz | WRMI Florida | | Sunday | 0800-0830 UTC | 5850 and 7730 kHz| WRMI Florida | | Sunday | 2330-2400 UTC | 7780 kHz | WRMI Florida |
The Mighty KBC transmits to North America Sundays at 0000-0200 UTC (Saturday 7-9 pm EST) on 5960 kHz, via Germany. A minute of MFSK is at about 0130 UTC. Reports to Eric: email@example.com . See also http://www.kbcradio.eu/ and https://www.facebook.com/TheMightyKbc/.
Also this weekend, Daz Man writes: “I have some Ham-DRM data. Needed: EasyPal or WinDRM plus 7zip (Windows) QSSTV or TRXAMADRM plus p7zip (Linux) Data is Mode E, QAM4, 3 passes – also with 3dB PAPR processing to boost SNR.”
“This is a Music Show” Most of the show is a music show, but the host transmits some MFSK text and image near the end of the broadcast. It’s transmitted on WRMI, Thursdays at 0200-0300 UTC on 5850 kHz (Wednesday evening in the Americas) and a new time also on WRMI, Wednesdays at 2100-2200 UTC on 7780 kHz (aimed towards Europe) . Also look for a waterfall ID at the beginning of the show. firstname.lastname@example.org . www.twitter.com/ThisIsAMusicSho/ @ThisIsAMusicSho
New York and Pennsylvania NBEMS nets. Most weekends, as KD9XB, I check in to the New York NBEMS (Narrow Band Emergency Messaging Software) net Saturday at 1300 UTC on 3584 kHz USB, and the Pennsylvania NBEMS net Sunday at 1230 UTC on 3583 kHz USB (with out-of-state check-ins now starting at 1130 UTC). Check-ins are usually in Thor 22, and messages are in MFSK32. Messages generally use the Flmsg add-on to Fldigi. If you are a radio amateur in eastern North America, feel free to check in. Outside the region, use an SDR in the eastern USA to tune in and decode. You do not need Flmsg to check in, and most of the messages can be read without Flmsg. If you can decode the net, send me an email to email@example.com , or tweet to @SWRadiogram, and I will let them know you are tuned in. USEast NBEMS Net: Please also note the USEast NBEMS Net, Thursdays 0000 UTC (Wednesdays 7 pm EST) on 3536 kHz USB.
Thanks for your reception reports!
Kim Andrew Elliott, KD9XB
Producer and Presenter
Zach in Alabama decoded these images 17 April 2021, 0000-0030 UTC, 9955 kHz from WRMI Florida, despite the usual Cuban jamming on that frequency …