Shortwave Radiogram

Pleasantly fuzzy images - and 100% text - from the 0800-0830 UTC broadcast, 5850 kHz from WRMI Florida, received via SDR in South Australia (16000 km).

Interstellar comet 3I/Atlas, 0808 UTC, 5850 kHz from WRMI Florida, received 1) via SDR in South Australia and 2) here in northern Virginia. MFSK32 text decoded 100% via both receivers.

Soon at 0800 UTC ...

Ready for the overnight @SWRadiogram session via WRMI, 5850 kHz, 0800-0830 UTC, here in Vancouver.

Tune in the red-eye edition of Shortwave Radiogram, Monday 0800-0830 UTC, 5850 kHz from WRMI Florida. swradiogram.net/post/816628841…

The unique audio of WRMI's 9955 kHz is OK for spoken word programming, but it's rough on MFSK image triggers. Fades may have caused other triggers to miss. At 1430-1500 UTC received via SDRs in 1) Georgia (USA) and 2) Kentucky.

Shortwave Radiogram soon at 1430-1500 UTC on 9955 kHz from WRMI Florida. swradiogram.net/post/816628841…

Brief bursts of noise from within or outside an SDR in Indiana caused images to go haywire during the Saturday 2300-2330 UTC broadcast, 9455 kHz from WRMI Florida. Better results via an SDR in Alberta.

Shortwave Radiogram soon at 2300-2330 UTC on 9455 kHz from WRMI Florida. swradiogram.net/post/816628841…

#shortwave or high-frequency HF (3-20 MHz) An HF frequency allocation table helps: ntia.gov/sites/default/… But the KiwiSDRs also tune medium wave (AM broadcast) and even lower frequencies.

Results from the 0230-0300 UTC broadcast, 9265 kHz from WINB Pennsylvania, received via SDRs in 1) Slovenia (with local interference) and 2) Colorado.

Also results from the Thursday 2330-2400 UTC broadcast, 9265 kHz from WINB Pennsylvania, received via SDRs in 1) Brazil and 2) California.

Results from the Thursday 2330-2400 UTC broadcast, 9265 kHz from WINB Pennsylvania, received via SDRs in 1) South Australia (also posted yesterday), 2) Finland, 3) Switzerland and 4) the Azores.

Shortwave Radiogram soon at 0230-0300 UTC on 9265 kHz from WINB Pennsylvania. swradiogram.net/post/816628841…

@SWRadiogram dropbox.com/scl/fi/cvyifyq… dropbox.com/scl/fi/x5kfv7f…

2026-05-14 23:30 UTC - @SWRadiogram #449 on 9265 kHz via WINB, Red Lion, PA, 🇺🇸. Almost perfect copy of text with noisy images. Rx in Thessaloniki, 🇬🇷, with @airspy_com HF+ Discovery and Wellbrook antenna.

@SWRadiogram 449 05/14/2026 Thursday|2330-2400 UTC|9265 kHz WINB Pennsylvania Received in Woodland, WA @airspy_com HF+ Discovery SDR#1922 180ft Dipole with @Nooelec 9:1 V2 Fldigi-4.2.10.05 text justpaste.it/gn819 IQ recording t.ly/nFYku

Results from the Thursday 2330-2400 UTC broadcast, 9265 kHz from WINB Pennsylvania, received via SDR in South Australia.

Comet 3I/Atlas, 2338 UTC, 9265 kHz from WINB Pennsylvania, received 1) via SDR in South Australia (17000 km) and here in northern Virginia (125 km). The image is MFSK32, and the MFSK32 text decoded 100% via both receivers.

Shortwave Radiogram, 14-21 May 2026 (program 449): Digital modes to the Northern Sea Route First broadcast of the week soon at 2330-2400 UTC on 9265 kHz from WINB Pennsylvania swradiogram.net/post/816628841…