Shortwave Radiogram, del 10 al 13 de Marzo: programa 295

Shortwave Radiogram
Shortwave Radiogram

This is the time of year when time changes and frequency changes can complicate our shortwave listening. In most of North America, clocks will move forward one hour on Sunday, March 12. The only impact this weekend is that the “red-eye” transmission of Shortwave Radiogram will be one hour later by local time, e.g. 4:00 am EDT, because it stays at the same UTC time. The Mighty KBC broadcast also stays at 2200-2400 UTC Sunday, so it will be at 6-8 pm EDT starting this weekend.  

Most of Europe will change clocks forward March 26. That same date is the beginning of the A23 shortwave frequency season. More on that later this month.

Spring in the Northern Hemisphere also means  flowers are blooming – somewhat early this year due to the warm temperatures. This provides an abundant supply of flower photos which will be transmitted as MFSK64 images in the next few weeks. I hope we don’t suffer from flower fatigue by the time we get through April.

The present season is also changing gray (grey) line propagation on HF (shortwave). Chris in New Zealand sent an email report of reception of the Friday 0530-0600 UTC show on 7780 kHz (see below). This 7780 frequency was reliable for New Zealand and Australia when it was used for the Monday 0800 UTC transmission, but now WRMI uses that time and frequency for Voice of Indonesia.

A video of last weekend’s Shortwave Radiogram (program 294)  is provided by Scott in Ontario (Friday 1300 UTC). The audio archive is maintained by Mark in the UK. (We miss the weekly analysis provided by Roger in Germany, who is on sabbatical.)

Here is the lineup for Shortwave Radiogram, program 295, 10-13 March 2023, in MFSK modes as noted:

  1:37  MFSK32: Program preview
  2:45  MFSK32: Research: First Americans arrived ~15000 years ago
  8:00  MFSK64: How stratospheric balloons navigate the skies*
13:01  MFSK64: This week’s images*
28:11  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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