Last weekend’s Shortwave Radiogram was a reminder of the ability of MFSK16 to provide a correct decode even in difficult shortwave conditions. Thank you for your reception reports, especially listeners in Japan who decoded, or attempted to decode, the excerpt of Japanese text. (See this example from Sakaé-san in Joetsu-City, Niigata Prefecture.) Sometimes, even the MFSK16 was not able to overcome the challenges of RF interference in urban locations, especially with the transmitter 12000 km away.
The Saturday 0230-0300 UTC transmission on 9265 kHz from WINB Pennsylvania continues to have a wide footprint, as seen in this tweet showing successful decode of the Japanese text simultaneously in Hungary and Hawaii. And during the Sunday 2330-2400 UTC show on 7780 kHz from WRMI Florida, the Japanese text was successfully decoded half way around the world in Perth, Western Australia. Hear the audio (from which you can decode) and see the decoded text here. Also, Roger in Germany made this sonogram of the Perth SDR reception.
This weekend, our usual MFSK32 and MFSK64, as well as one news item in Olivia 64-2000 mixed with, and 15 dB under, music.
Here is the lineup for Shortwave Radiogram, program 98, 3-5 May 2019, in modes as noted:
1:46 MFSK32: Program preview
2:56 Annual Armed Forces Day crossband test on May 11
6:46 MFSK64: Hybrid laser-radio transmits and receives
8:56 This week’s images*
22:59 Olivia 64-2000: Irish longwave station has two more years**
27:55 MFSK32: Closing announcements
* with image(s)
** Mixed with, and 15 dB under, music
Please send reception reports to email@example.com
Slow Scan Radio transmits is taking some time off until early May. Then it will transmit SSTV images and text modes Saturdays at 1300-1330 UTC on 6070 kHz and 7440 kHz via Channel 292 in Germany. The website is http://www.slowscanradio.com. Reception reports to firstname.lastname@example.org.
The Mighty KBC transmits to North America Sundays at 0000-0200 UTC (Saturday 8-10 pm EDT) 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/ andhttps://www.facebook.com/TheMightyKbc/.
“This is a Music Show” is the newest addition to digital modes via analog shortwave. 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, 5850 kHz, Thursday 0100-0200 UTC (Wednesday evening in the Americas). Also look for a waterfall ID at the beginning of the show.
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 1200 UTC on 3584 kHz USB, and the Pennsylvania NBEMS net Sunday at 1200 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 (PA NBEMS is experimenting with Thor 50×1 for messages). 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 firstname.lastname@example.org , or tweet to @SWRadiogram , and I will let them know you are tuned in.