Shortwave Radiogram, del 20 al 25 de Abril: programa 301

Shortwave Radiogram
Shortwave Radiogram

I hope everyone has recovered from the Program 300 celebration last week.🙂

Now we settle into our pattern of MFSK32 text, MFSK64 text, and MFSK64 images. We find the MFSK32 and MFSK64 work best in typical shortwave reception conditions. And a definite advantage of MFSK is that the mode accommodates both text and images. If you would like to try other modes on Shortwave Radiogram, let me know.

I recently received a reception report from a listener in China. It claimed reception on 9955 kHz, April 11, 1430-1500 UTC. I thought this might be a mistake, but I recalled Shortwave Radiogram was formerly on 9955. I checked the WRMI program schedule, and sure enough Shortwave Radiogram is on their System B schedule Tuesdays at 1430 UTC. So let’s tune in Tuesday to confirm this.

A video of last weekend’s Shortwave Radiogram (program 300) is provided by Scott in Ontario (Friday 1300 UTC). The audio archive is maintained by Mark in the UK. Analysis is prepared by Roger in Germany.

Here is the lineup for Shortwave Radiogram, program 301, 20-25 April 2023, in MFSK modes as noted:

 1:37  MFSK32: Program preview
  2:45  MFSK32: Saturn’s icy rings probably heat its atmosphere*
  9:15  MFSK64: Citizen scientists can hear the “sounds” of space
14:04  MFSK64: This week’s images*
28:43  MFSK32: Closing announcements

* with image(s)

Please send reception reports to

And visit

Twitter: @SWRadiogram or (visit during the weekend to see listeners’ results)

Facebook group:

Shortwave Radiogram Gateway Wiki

Shortwave Radiogram Transmission Schedule

| UTC Day  | UTC Time      | Frequency        | Transmitter       |
| Friday   | 0030-0100 UTC | 9265 kHz         | WINB Pennsylvania |
| Friday   | 0530-0600 UTC | 7780 kHz         | WRMI Florida      |
| Friday   | 1300-1330 UTC | 15770 kHz        | WRMI Florida      |
| Friday   | 1500-1530 UTC | 15755 kHz DRM    | WINB Pennsylvania |
| Saturday | 0330-0400 UTC | 9265 kHz         | WINB Pennsylvania |
| Saturday | 2300-2330 UTC | 7570 kHz         | WRMI Florida      | 
| Monday   | 0800-0830 UTC | 5850 kHz         | WRMI Florida      |

The Mighty KBC transmits to Sundays at 2200-2400 UTC (5-7 pm EST) on 5950 kHz from WRMI Florida. A minute of MFSK64 is at about 2330 UTC.  Reports to Eric: . See also and

“This is a Music Show” Most of the show is a music show, but the host transmits some MFSK-64 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). Also look for a waterfall ID at the beginning of the show.    @ThisIsAMusicSho

Pop Shop Radio from British Columbia, Canada, includes “a whole variety of pop music, such as records from the 1960s and 1970s that were played on Top-40 radio stations not only in North America but also on offshore radio and stations like Radio Luxembourg.” The programs now include some MFSK text and an image. Website: Twitter: @popshopradio1  Email:

Thanks for your reception reports!


Kim Andrew Elliott, KD9XB

Producer and Presenter

Shortwave Radiogram




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