Friday, March 09, 2018

Shortwave Radiogram, March 10-11

@jushin_Perseus received these images in Japan, Monday 0800-0830 UTC, 7730 kHz from WRMI Florida.

Hello friends,

As I was typing last week's edition of this email, the lights in my house were flickering because of the high winds on 2 March. I knew I had to work fast: adding new names to the mailing list, then sending the email three times, each with a third of the mailing list, and finally uploading the Shortwave Radiogram audio to Bulgaria and to WRMI. All of that was finished just before the lights went out at 6:00 am. (Actually, I was on the UPS.) Power was not restored until about 7:00 pm.

But my internet connection was not restored at that time. The Verizon fiber optic lines were victims of falling trees a few blocks away. Internet did not return until Sunday at about 3:00 pm. Because of this, I was not able to send my usual Twitter reminders and retweets of listeners' images, at least for the Saturday 1600 UTC show.

Videos:  BacardeSan in Mississippi produced an amazing video showing his simultaneous reception of 5850 and 7730 kHz, from WRMI Florida, Monday at 0800-0830 UTC. He used a single RTL_SDR and GQRX software. You won't be able to decode from his audio because the two frequencies were about about 400ms apart:

BlackApple 62 in Italy provided this video of reception Saturday at 1600-1630 UTC on 9400 kHz from Bulgaria: And Scott in Ontario produced this video of the Sunday 2330-2400 UTC broadcast on 7780 kHz:
MFSK image experiment

This weekend's Shortwave Radiogram will include an MFSK32 image transmitted at normal speed. It will then be transmitted at half speed, to be recorded then played back at double speed. Is the quality of the latter image better?

You can use Audacity to record and change the speed of the transmitted audio. (Effect > Change Speed > Percent Change: 100.0)  Other audio editors are also available. Sometimes it is tricky to transfer audio from one application to another inside a PC. A virtual audio cable such as VB Cable might help.

Details of the experiment are in the attached pdf prepared by Mark Braunstein, WA4KFZ.

Here is the lineup for Shortwave Radiogram, program 38, 10-11 March 2018, all in MFSK32 (but with one item slowed down):

 1:36  Program preview
 2:44  Clocks in Europe affected by power grid irregularities*
11:16  Odd and amazing cyclones at Jupiter's poles* 
16:53  Goodyear's photosynthesizing concept tire*
22:16  MFSK image enhancement experiment*
25:00  Closing announcements

* with image(s)

Please send reception reports to
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Shortwave Radiogram Program 38
(10-11 March  2018)

1600-1630 UTC
9400 kHz
Space Line, Bulgaria
2030-2100 UTC
7780 kHz
WRMI Florida
2330-2400 UTC
7780 kHz
WRMI Florida
0800-0830 UTC

7730 kHz
5850 kHz
WRMI Florida

The Mighty KBC transmits to Europe Saturdays at 1500-1600 UTC on 9400 kHz (via Bulgaria), with the minute of MFSK at about 1530 UTC (if you are outside of Europe, listen via ).  And to North America Sundays at 0000-0200 UTC (Saturday 7-9 pm EST) on 6150 kHz, via Germany. The minute of MFSK is at about 0130 UTC.  Reports to Eric: . See also and

 Italian Broadcasting Corporation (IBC)  For the complete IBC transmission schedule visit  Five minutes of MFSK32 is at the end of the 30-minute English-language “Shortwave Panorama,” per the schedule below:

2025-2030 UTC
5845 kHz
Europe, Middle East, Asia
0125-0130 UTC
5950, 11580 kHz
0225-0230 UTC
9955 kHz
0255-0300 UTC
5985 kHz
0155-0200 UTC
5850, 5950, 9395, 9455 kHz
0055-0100 UTC
7730 kHz
1155-1200 UTC
6070 kHz

Thanks for your reception reports! 
Kim Andrew Elliott, KD9XB
Producer and Presenter
Shortwave Radiogram
Reporting on international broadcasting at