Category Archives: What’s On Shortwave

Shortwave Radio Recordings: Rádio Nacional da Amazônia

Rio_de_JaneiroLast night, Rádio Nacional da Amazônia had a booming signal into North America on 11,780 kHz. Rádio Nacional’s AM signal was very wide; I actually opened up the filter on my SDR to 16 kHz to record this broadcast. In truth, that’s probably too wide, but it certainly made for great audio fidelity.

So, if you’re in the mood for some Brazilian music and commentary today, this 168 minute recording of Rádio Nacional da Amazônia should satisfy.

This was recorded on Sunday, April 28–starting around 22:15 UTC–on 11.78 MHz. Click here to download the full recording as an MP3 file, or listen in the embedded player below:

Want more Rádio Nacional? Click here for other recordings.

VOA Radiogram for April 27/28 includes Thor50x2, PSK63F, and Flamp

VOARadiogram(Source: VOA Radiogram)

Apologies for not updating this website since the April 20/21 VOA Radiogram. I have been diverted by deadlines connected to my other full-time job, audience research analyst for the International Broadcasting Bureau.

Thanks to all who sent reception reports, screenshots, audio samples, and other materials from the past weekend’s program. MFSK held off a challenge from the Thor modes and remains the most successful of the modes we have tested.

However, because your producer omitted the Thor 50×2 mode — a mode that might prove to be robust — from that program, VOA Radiogram on April 27/28 will include a “make good” transmission of Thor 50×2. And a transmission of Thor 50×1 for comparison.

There will also be a transmission of the PSK63F mode. This rather slow mode performed well during VOA Radiogram 1, but we only gave it a minute. There will be a longer transmission of PSK63F this weekend to allow a better evaluation.

The last text transmission this weekend will be in the Flamp format. If you don’t already have it, please download Flamp from www.w1hkj.com. Flamp divides a text file into several blocks, each with a specific number of characters. If any block is received without the correct number of characters, that block is rejected. The missing block can be picked up during the repeat transmission. Flamp might be useful for those text transmissions that are received at about 90% copy, when occasional deep fades prevent 100% copy. In Flamp, under Configure, check both of the Auto sync boxes.

Here is the lineup for the April 27/28 VOA Radiogram:

MFSK16 (58 wpm) program preview
PSK63F (55 wpm), 2:50
MFSK32 text (120 wpm) and image, 4:28
Thor50x1 (180wpm), 1:48
Thor50x2 (180wpm), 1:46
MFSK64 (240 wpm), 2:16
MFSK128* in Flamp X2 format, 3:46
MFSK32 image

*Probably a good idea to set the MFSK128 mode manually rather than depend on the RSID

All modes will be centered on 1500 Hz.

Each mode will be introduced by a brief MFSK16 transmission, same as last weekend.

Please send reception reports to [email protected]

Twitter: @VOARadiogram

VOA Radiogram transmission schedule
(all days and times UTC)
Sat 1600-1630 17860 kHz
Sun 0230-0300 5745 kHz
Sun 1300-1330 6095 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.

Kim

Al Jazeera: Radio Free Sarawak offers alternative voice ahead of elections

Clandestine station, Radio Free Sarawak, offers an alternative voice in Malaysia ahead of elections next week. For those living in remote jungle communities–places where the Internet is not readily available–Radio Free Sarawak can be heard on shortwave radio.

Al Jazeera’s Florence Looi reports from a village in Sarawak:

Added to other posts tagged: Why Shortwave Radio?

Shortwave Radio Recordings: Voice of Greece

greeceFor your listening pleasure: four hours of music, and a little Greek commentary, from the Voice of Greece.

I recorded this broadcast on Sunday, April 21st March 8th, 2013 on 9.42 MHz at 18:30 UTC. While recording, I piped the shortwave audio through our home hi-fi system–it sounded absolutely amazing. I hope you’ll enjoy it as much as I did.

Click here to download the full recording, or simply listen via the embedded player below:

Shortwave Radio Recordings: Radio Romania International

Victory Avenue (Calea Victoriei), a major avenue in central Bucharest (Source: Wikimedia Commons)

Victory Avenue (Calea Victoriei), a major avenue in central Bucharest (Source: Wikimedia Commons)

Today at 20:30 UTC, Radio Romania International’s signal on 11,745 kHz was  quite strong, as it so often is.  RRI is one of the few broadcasters that still target Europe and the eastern US on shortwave.

RRI is a treasure of a station, too, with true local flavor–Romanian news, music, and mini cultural documentaries. This Sunday broadcast features the program Inside Romania, Romanian Without Tears (a language program which always reminds me of the similarities between French and Romanian), DX Mailbag, and Roots.

Click here to download the full broadcast as an MP3, or simply listen via the embedded player below. This recording features their interval signal before and after the broadcast:

If you enjoy Radio Romania International, I encourage you to send an accurate and descriptive reception report to: [email protected] Maybe your letter will be featured on their DX Mailbag!

Shortwave Radio Recordings: Radio Australia’s Tok Pisin service

Mount Tavurvur in Papua New Guinea (Source: Wikimedia Commons)

Monday morning, I was up earlier than usual and caught Radio Australia’s Tok Pisin (Pacific Pidgin Language Service) on 9,475 kHz.

I doubt many English-speaking SWLing Post readers will understand Tok Pisin if you’re hearing it for the first time, but as with other Pidgin languages throughout the world, Tok Pisin is a mixture of several languages: English, German, Malay, Portuguese and Austronesian languages. It has a comparatively simple structure and you might be surprised what you can understand if the topic shifts to something familiar. I’ve certainly enjoyed listening to it in the background as I work on other projects.

I recorded a full 90 minutes of the Tok Pisin service; you can download it directly by clicking here, or simply listen via the embedded player below: