Category Archives: Shortwave Radio

HF military communication exercise announcements on WWV/WWVH

(Source: ARRL News via Eric WD8RIF)

The US Department of Defense (DOD) plans to start making use of a provisional time slot on WWV and WWVH to announce upcoming HF military communication exercises and how the Amateur Radio community can become involved in them. The announcements will occur at 10 minutes past on WWV and at 50 minutes past on WWVH. WWV and WWVH transmit on 2.5, 5, 10, 15, and 20 MHz.

“DOD’s use of the broadcast time slot on WWV/WWVH will benefit the MARS program’s mission of outreach to the Amateur Radio community,” said US Army Military Auxiliary Radio System (MARS) Program Manager Paul English, WD8DBY. “The actual messages to be broadcast are coordinated by the DOD Headquarters that the MARS program supports.”

The initial announcements are set for the period April 20 – May 3, which coincides with the “Vital Connection” interoperability exercise to be held in Wisconsin. Future time slots will coincide with the Vital Connection exercise Ohio in June; DOD COMEX 19-3 in August, and the DOD COMEX 19-4 in October. Following the proof of concept this year, DOD anticipates making use of the WWV/WWVH broadcast time slot full time, year-round.[…]

Click here to read the full article via the ARRL News.

“Managing SW Broadcasts From Ascension Island”

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Location of Ascension Island in the South Atlantic.

Many thanks to a number of SWLing Post contributors who share the following story from Radio World magazine (this summary via Southgate ARC):

Managing short wave broadcasts from Ascension Island

Radio World reports on the remote Atlantic Relay Station that transmits critical radio broadcasts to millions in Africa and beyond

A six-mile stretch of volcanic rock in the middle of the South Atlantic Ocean is home to the BBC’s Atlantic Relay Station.

Now managed and operated by Encompass Digital Media on behalf of the BBC World Service, the stations’ six powerful shortwave transmitters on Ascension Island beam program in a dozen or more languages to some 30 million listeners in north, west and central Africa.

The shortwave transmitters include two 250 kW Marconi BD272 transmitters originally installed in 1966 (and still in daily use) and four 250 kW RIZ K01 transmitters, which are also capable of transmitting in Digital Radio mode.

Read the Radio World story at
https://www.radioworld.com/columns-and-views/managing-sw-broadcasts-from-ascension-island

An aircraft hijacking story with “a shortwave twist”

Shortwave Radio Recordings: Radio Educación (XEPPM-OC)

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Thanks to a tip from SWLing Post contributor, Dan Robinson, I spent some air time with an old friend last night: Radio Educación broadcasting from Mexico City on 6,185 kHz.

Like a lot of small Central and South American shortwave stations, I believe XEPPM only broadcasts at 1,000 watts–though in the past, I believe they were allowed 10,000 watts. Still, their signal often makes it into eastern North America with relative ease, although it’s rare that it’s so clear. As summer approaches here in the northern hemisphere, QRN (noise from natural sources, like thunder storms) will rise on the 49 meter band. Even last night, there were some mild static crashes.

I tuned in around 01:25 UTC (April 1, 2019) with the WinRadio Excalibur and heard some amazing jazz, so I had to hit the record button.

For your listening pleasure, here’s the one hour ten minute recording I made:

Click here to download audio.

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MagPi Issue 80 features Ham Radio Projects for the Raspberry Pi mini computer

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Thanks to a hat tip from the Southgate ARC, I discovered that the excellent MagPi magazine has featured a number of ham radio projects in this month.

I’ve outlined below a list of the projects with page numbers–note that many are simply summaries that link to full project notes in previous editions:

Page 52: Pictures from space via ham radio
Page 71: ADS-B flight tracker (we also have a short tutorial here)
Page 72: WSPR transmitter
Page 73: Remote SDR scanner
Page 74: Digital voice hotspot
Page 75: Satellite tracking
Page 75: APRS IGate

Issue 80 of MagPi is free (click here to download as a PDF). You can also pay for a print subscription via post as well.

I highly recommend downloading each issue of MagPi–it’s a brilliant, informative magazine and is chock-full of projects and ideas for Pi fans of any age.

One of my Raspberry Pi 3Bs in service.

I’m a big fan of the Raspberry Pi and use it for a number of applications. This issue has encouraged me to give WSPR a go and perhaps even build a DV hotspot in the near future.

Raspberry Pi kits are quite affordable–Amazon has a massive selection from bare-bones units to full packages which include everything you need to get started. I’m a fan of both Canakits and Vilros.

Click here to search Amazon.com (this affiliate link also supports the SWLing Post).

I also purchase Pi systems, accessories, and hats from AdaFruit.

Post Readers: Are you a fan of the Raspberry Pi or other mini computers? Please comment and share your projects/ideas!

Video: WAGM visits WBCQ and interviews Allan Weiner

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Photo by Lee Reynolds

(Source: WAGM)

The skyline in Monticello looks a lot different now. A 260 foot tower that will be soon be home to one of the largest short wave radio stations in the world is nearing completion. News Source 8’s Ashley Blackford has the story.

Allan notes that transmitter tests may be taking place within a month.

[Note: If the embedded video function with WAGM does not function, click here to view at WAGM.]

Balázs spots a Hallicrafters in “The Walking Dead”

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Many thanks to SWLing Post contributor, Balázs Kovács, who writes:

Hi Thomas,

Some radio fixing and a plan to create a radio connection between the survivor settlements in the latest (shocking) episode of The Walking Dead (S09E15):