Category: HF

via the ARRL: Second Public Test of FT8 DXpedition Mode Demonstrates High Contact Rates Possible

The second public test of FT8 DXpedition Mode has shown that the mock DXpedition stations (“Foxes”) were able to work the pileups of callers (“Hounds”) at a fairly good clip. Logged data showed that 390 unique stations were copied by one or more of the three Foxes. FT8 is part of the WSJT-X digital software suite. Ned […]

via the ARRL: HAARP Facility to Resume Ionospheric Research this Week

Alaska’s super-power High-Frequency Active Auroral Research Program (HAARP) transmitters in Gakona, Alaska, will fire up again for the spring research campaign April 6 – 14. University of Alaska Fairbanks (UAF) Space Physics Group researcher and HAARP Chief Scientist Chris Fallen, KL3WX, told ARRL that more than 40 hours of “externally funded” experiments are in the […]

via the ARRL: V55V, Big Signal out of Namibia, to Go Silent

Martin Walter, V51W, near Omaruru, Namibia, has spent the past 2 decades improving his station, which likely accounts for his V55V station’s increasingly better signal. After trying all possible antenna systems, he is convinced that his wire rhombic antennas are the best choice. He uses three of them; two that are 160 meters on each leg to […]

via HACKADAY: An Autonomous Drone For Working Rare Squares

Amateur radio is an extremely broad church when it comes to the numerous different activities that it covers. Most of the stories featuring radio amateurs that we cover here have involved home-made radios, but that represents a surprisingly small subset of licence holders. One activity that captivates many operators is grid square collecting. The map […]

via the ARRL: Swedish Telecoms Regulator Considering Charging Hams a Fee to Run More Than 200 W

Sweden’s Post and Telecom Authority (PTS) is considering lowering the transmitter output power for general Amateur Radio stations to 200 W PEP. Under a set of wide-ranging proposed regulatory changes affecting many radio services, radio amateurs who want to run higher power would have to apply for a license and pay an annual fee of […]

via the ARRL: FT8 DXpedition Mode Field Test Attracts Upward of 500 Participants

It was the Fox and the Hounds on the bands March 6, as the WSJT-X development group conducted a field test of the still-beta FT8 DXpedition Mode. A second beta version of WSJT-X version 1.9.0, which includes the DXpedition-mode-capable version of FT8 — was released recently. Version 1.9.0-rc2 was made available to allow further field testing of the FT8 DXpedition […]

via the ARRL: ARRL Requests Expanded HF Privileges for Technician Licensees

ARRL has asked the FCC to expand HF privileges for Technician licensees to include limited phone privileges on 75, 40, and 15 meters, plus RTTY and digital mode privileges on 80, 40, 15, and 10 meters. The FCC has not yet invited public comment on the proposals, which stem from recommendations put forth by the […]

via the RSGB: Latest from IARU monitoring system

The IARU Region 1 Monitoring System newsletter reports a north-west African military Thales-3000 system on 13,998.4kHz was causing interference in the amateur radio 20m band, and that in the amateur radio 40m band Radio Myanmar has been heard on 7200kHz, and Radio Hargeisa from the Republic of Somaliland on 7120kHz. Read more at www.iarums-r1.org/iarums/news2018/news1801.pdf (18-page/1.1MB PDF). via […]

via the ARRL: A Reminder: Second Annual AM Rally Special Event is this Weekend

The AM Rally special event, inviting operators to explore the original phone mode, takes place over the February 2-4 weekend. The AM Rally gets under way at 0000 UTC on Saturday, February 3, and concludes at 0700 UTC on Monday, February 5. Band include 160, 80, 40, 20, 15, 10, and 6 meters. ARRL Laboratory Assistant Manager and […]

via the ARRL: Secretive “Numbers Stations” Persist on HF

For many years, unidentified radio broadcasts have been transmitting coded messages, using numbers, such as “6-7-9-2-6. 5-6-9-9-0.” Even today, tuning across the HF spectrum typically will yield a “numbers station,” a mechanical-sounding voice (male or female) methodically announcing groups of single-digit numbers for minutes on end. According to Radio World, you may have tuned into a spy […]

via the ARRL: “Science Milestones in the History of Radio” Event is Under Way

A year-long operating event, “Science Milestones in the History of Radio,” is under way, sponsored by the Italian Amateur Radio Association (ARI) Fidenza Radio Club. Each month will highlight individuals who laid the foundations — theoretical and practical — for radio science. Awards are available for participating stations. Each month, a commemorative station with a […]

via the ARRL: Indonesian Pirates on 7 MHz Heard in Europe

The International Amateur Radio Union Region 1 (IARU Region 1) Monitoring System (IARUMS) December newsletter reports that many Indonesian “pirates” were heard on December 30, 2017, in the 7.000 to 7.040 MHz range, USB/LSB, active in 5-kHz increments, “laughing, singing, and talking.” Signals were reported to be “rather strong in Europe.” Adding to the mix were Chinese […]

via the ARRL: FEMA Region 10 Communication Exercises Will Make Use of 60 Meters

Federal Emergency Management Agency (FEMA) Region 10 (Alaska, Idaho, Oregon, and Washington) will conduct a Communications Exercise (COMMEX) on January 17 and on the third Wednesday of subsequent months during 2018, 1500-2100 UTC. These exercises will use the 60-meter channels and will test and exercise interoperable communication (federal/state/local/tribal/Amateur Radio) for use during a major disaster […]

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