Category: HF

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 […]

President Electronics USA Introduces the “Ronald” AM FM 10/12 Meter Radio

The Ronald is capable of 50+ watts PEP, with AM/FM, DW, Mic Gain, RF Gain, 2 Emergency Channels, NB/ANL, President’s unique ASC (Automatic Squelch Control), Scan, Talkback, Public Address, Echo, 7 Color Display and much more. Naples, FL, December 09, 2017 — President Electronics, the worldwide leader of CB Radios announced today the launch of […]

via HACKADAY: Slinky Walks Down Stairs and Picks up 80m Band

Originally intended as a way to stabilize sensitive instruments on ships during World War II, the Slinky is quite simply a helical spring with an unusually good sales pitch. But as millions of children have found out since the 1940’s, once you roll your Slinky down the stairs a few times, you’ve basically hit the […]

via the ARRL: Mysterious Signals Did Not Come from Missing Submarine; MF/HF Frequencies Listed

Satellite signals heard over the weekend did not come from a missing Argentine Navy submarine San Juan that went missing on November 15, dashing hopes that the vessel could be located. The submarine had reported a malfunction, had surfaced, and was headed back to its base when the Navy lost contact with it. The sub, built in […]

via the ARRL: Simple 40-Meter Dipole Supports Advanced Mars Radar

The venerable HF dipole has found a new home and purpose in space. The Mars advanced radar for subsurface and ionospheric sounding (MARSIS) on Mars Express uses a simple 40-meter dipole as the antenna for its subsurface sounding radar. The dual-channel low-frequency sounder operates between 1.3 and 5.5 MHz for subsurface sounding and between 100 […]

via the ARRL: Amateur Radio Facilitates Another Patient Evacuation on Puerto Rico

“Force of 50” volunteer Val Hotzfeld, NV9L, reported from Puerto Rico today (October 15) that Amateur Radio volunteers on Culebra and in Fajardo — Jeremy Dougherty, NS0S, and Matthey Gonter, AC4MG — made it possible for physicians at the two locations to communicate directly in an effort to evacuate a patient who is an amputee. […]

ARRL Reminds Amateurs to Keep Clear of Frequencies Designated for Puerto Rico-Caribbean Emergency Response

ARRL reminds Amateur Radio operators that emergency communications are taking place on and around 14.265, as well as other frequencies. Please avoid these frequencies whenever possible, to allow for emergency communications to transpire clearly and efficiently. If you must be on the air in the vicinity of these frequencies, please allow emergency operators at least […]

via the ARRL: Amateur Radio Volunteers Aiding Storm-Ravaged Puerto Rico, US Virgin Islands

Puerto Rico and the US Virgin Islands both suffered substantial damage from Hurricane Maria, although Puerto Rico took the bigger hit, and it is there that Amateur Radio has begun to fill a huge telecommunications gap. According to the FCC, service is out for 96% of the cellular telephone sites in Puerto Rico — and […]

This Week in Amateur Radio © 2017 Community Video Associates, Inc.