Category: Shortwave

Via the ARRL: Russian OTH Radar Now Reported to be “Everywhere”

The latest International Amateur Radio Union Region 1 Monitoring System (IARUMS) newsletter reports the Russian “Contayner” over-the-horizon radar (OTHR) has been active in the 7, 10, 14, and 18 MHz amateur radio allocations (amateur radio is primary on 40 and 20 meters). The OTHR transmissions have been 40 sweeps/second, FM on pulse, and 12 kHz […]

Via the ARRL: Report: North Korea Testing Digital Broadcasting on 80 Meters

Radio World reports that the People’s Democratic Republic of Korea (North Korea) has resumed testing digital radio broadcasting on the 80-meter amateur band after a 2-year absence. North Korea is transmitting with the Digital Radio Mondiale (DRM) protocol. The latest transmissions on 3.560 MHz began in mid-August. “It appears unclear at this time, however, whether […]

Via the ARRL: WWV and WWVH to Broadcast Defense Department WWV Centennial Greeting, Special Event Reminder

Starting on Monday, September 16, WWV and WWVH will broadcast a US Department of Defense message to mark the centennial of WWV and to announce the WW0WWV special event from September 28 until October 2 at the WWV transmitter site near Fort Collins, Colorado. The DoD message transmissions will air until October 1. Kevin Utter, […]

Via the ARRL: Festival of Frequency Measurement Set to Honor WWV Centennial

HamSCI and the Case Amateur Radio Club of Case Western Reserve University (W8EDU) will sponsor a “Festival of Frequency Measurement” on WWV’s centennial, October 1, from 0000 to 2359 UTC (starting on Monday evening, September 30, in the Americas). The event invites radio amateurs, short-wave listeners, and others capable of making high-quality frequency measurements on […]

Department of Defense Message Prompts Listeners to Take WWV/WWVH Survey

Through Saturday, August 24, WWV and WWVH will transmit a US Department of Defense (DOD) message in conjunction with the COMEX 19-3 interoperability exercise in Tennessee. The broadcast also urges listeners to complete a survey on WWV/WWVH listenership and listening habits. The messages are broadcast on WWV at 10 minutes past the hour and on […]

via the RSGB: Learn how to build a medium wave radio receiver

On 6 August 2019, the RSGB invites young people—and an accompanying adult if the child is under 16—to join them at the National Radio Centre at Bletchley Park for a fun and hands-on workshop where they can learn more about radio and electronics. The workshop offers a short introduction to wireless communications before moving on to the […]

via the ARRL: Nature Article Suggest a “Grand Solar Minimum” Lies Ahead

A juried research paper in Nature, “Oscillations of the baseline of solar magnetic field and solar irradiance on a millennial timescale,” suggests that a “grand solar minimum” — similar to the legendary “Maunder Minimum” — is approaching, starting as early as next year and lasting for three solar cycles. That would be bad news for HF enthusiasts, who are […]

via the ARRL: Department of Defense to Transmit Interoperability Exercise Info via WWV/WWVH

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. […]

Canadian artist to use HAARP to transmit SSTV

Concordia transmission artist Amanda Dawn Christie will use the world’s most capable high-power, high-frequency transmitter HAARP in Alaska to send art around the world and into outer space using Slow Scan TV Concordia News reports: In the shadow of Mount Sanford, surrounded by Alaskan wilderness, you’ll find the most powerful radio transmitter on earth. On […]

via the ARRL: Russian “Sunflower” Coastal Radar Showing Up on 60, 40, and 75 Meters

The January issue of the IARU Region 1 Monitoring System (IARUMS) newsletter reports the Russian “Sunflower” coastal radar, located east of Vladivostok, is being heard at nights on 3,716 kHz and 6,860 – 7,005 kHz, as well as on several 60-meter frequencies. A Chinese wideband over-the-horizon (OTH) radar also appeared on 7.000 MHz in early January. While 60 […]

via the ARRL: WWV 100th Anniversary Special Event Operation in the Planning Stages

It’s a celebratory year for the WWV stations. The fiscal year (FY) 2019 budget — once signed — will include full funding for the stations, which also mark their 100th year this fall. The WWV Centennial Committee has a tentative agreement with the National Institute of Standards and Technology (NIST) to mount a special event station this […]

via the ARRL: Hundreds Report Hearing SAQ Alexanderson Alternator on Christmas Eve

Alexanderson Alternator transmissions on Christmas Eve 2018 from Sweden’s SAQ drew more than 340 listener reports from 28 countries, including seven reports from the US. “Many visitors had come to the transmission hall to enjoy coffee, cake, and Swedish ginger snaps as they were watching the activities with starting and running the old radio transmitter SAQ,” the […]

via the ARRL: Broadcasters Intruding on Exclusive Amateur Radio Frequencies

The International Amateur Radio Union Region 1 (IARU-R1) Monitoring System (IARUMS) reports that Radio Hargeisa in Somaliland has returned to 7,120 kHz after a break of several weeks, while Radio Eritrea has been reported on 7,140 and 7,180 kHz. Radio Sudan has been transmitting on 7,205 kHz with excessive splatter, IARUMS said. German telecommunications authorities […]

via the ARRL: Reported Russian Ham Band Intruders Continue to be Troublesome

The International Amateur Radio Union Monitoring Service (IARUMS) reports interference on 40 meters from various Russian sources. The Russian coastal over-the-horizon (OTH) radar “Sunflower” was very active on 40 meters and audible in Europe in the evenings, transmitting FM on pulse. The site is believed to be northeast of Vladivostok. IARUMS Region 1 Coordinator Wolf […]

via the ARRL: IARU Region 1 Monitoring System Reports Disappearance of Two 40-Meter Broadcast Intruders

The IARU Region 1 Monitoring System (IARUMS) reports that two long-time broadcast intruders on 40 meters are gone. IARUMS Coordinator Wolf Hadel, DK2OM, said in the August IARUMS newsletter that Radio Hargeisa in the Republic of Somaliland on 7.120 MHz, and Radio Ethiopia on 7.140 MHz, departed the band during the last week of August. “We did […]

via the ARRL: Concern Rising within Amateur Radio Community over WWV-WWVH Shut Down Proposal

ARRL members and Amateur Radio clubs are expressing increased concern over the inclusion of WWV and WWVH on a list of proposed cuts in the White House’s National Institute of Standards and Technology (NIST) Fiscal Year 2019 budget request. The proposed cuts also would include the Atomic Clock signal from WWVB used to synchronize specially […]

via HACKADAY: What Will You Do If WWVB Goes Silent?

Buried on page 25 of the 2019 budget proposal for the National Institute of Standards and Technology (NIST), under the heading “Fundamental Measurement, Quantum Science, and Measurement Dissemination”, there’s a short entry that has caused plenty of debate and even a fair deal of anger among those in the amateur radio scene: NIST will discontinue the […]

via the RSGB: Petition launched to save WWV

US National Institute of Standards and Technology station WWV and sister transmitting stations are among the oldest radio stations in the United States, having been in continuous operation since May 1920. WWV has transmitted the official US Time for nearly 100 years. The US government has been planning to close the NIST Radio Stations WWV, […]