Shortwave Radiogram, del 3 al 6 de Febrero: programa 290

Shortwave Radiogram
Shortwave Radiogram

Lately all of our broadcasts have been without mishap. The Saturday 2300-2330 UTC is, however, “interesting” because of the noise that has been co-channel the  past few weeks. It sounds more like jamming than data, but this does not rule out that it is some sort of data. The signal seems strongest via SDRs in Michigan (see screenshot below), but given the nature of shortwave propagation, it is not necessarily from that area. And the noise does not seem to be daily, although I have not yet determined the exact schedule. 


Voice of Korea from North Korea is on 7570 also at 2300 UTC, which usually prevents reception of Shortwave Radiogram in Europe. This noise does not seem to be jamming against that. And it is possible that the noise is jamming from Cuba against, maybe, a former program on WRMI. But signal is stronger than any Cube jamming I have heard previously.

WRMI is now aware of the noise. If you have any ideas as to what it is, and from where it is transmitted, please let me know.

A video of last weekend’s Shortwave Radiogram (program 289)  is provided by Scott in Ontario (Friday 1300 UTC). (See also video of sidewalk reception in Moscow of The Mighty KBC, 15770 kHz from WRMI.) 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 290, 3-6 February 2023, in MFSK modes as noted:

  1:36  MFSK32: Program preview
  2:43  MFSK32: A test observatory on the far side of the moon
  6:42  MFSK64: Bee bricks provide habitat for solitary bees*
10:19  MFSK64: This week’s images*
27:42  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




Etiquetas:, , , , , ,

A %d blogueros les gusta esto: