Tag: IARUMS

via the ARRL: CW from Catalonia, Stanag-4285 from Turkey Make IARU Monitoring System Intruder List.

An unknown station transmitted “Freedom for Catalonia” in a CW loop on September 26 (1710 UTC) at 14.001 MHz, the International Amateur Radio Union Region 1 Monitoring System said, in its September newsletter. Topping the intruder list, however, was a Stanag-4285 digital mode signal that appeared on 7.001.8 MHz for several days. The transmitting station was […]

Not All “Intruders” on Ham Bands are Illegal — But a Lot of Them Are

The monthly newsletter of the International Amateur Radio Union Region 1 Monitoring Service (IARUMS) typically makes for some interesting reading. While the reports that come from more than two dozen contributors in Europe and Africa can be a bit visually dense, the content conveys the impression that that there are myriad intruders on the Amateur […]

Radio Eritrea and Radio Ethiopia Still Battling on 40 Meters

It was a now-familiar story in the July edition of the International Amateur Radio Union Region 1 (IARU R1) Monitoring System (IARUMS) newsletter, which reports that Radio Eritrea and Radio Ethiopia are still slugging it out i the 40-meter phone band. IARU Region 1 includes Europe, Africa, the Middle East, and Northern Asia. “The hostile […]

Region 1 Intruder Watch Reports the Usual Suspects

International Amateur Radio Union Region 1 Monitoring System (IARUMS) volunteers continue to document many of the same signals intruding on Amateur Radio bands — some of them audible in other parts of the world, according to the latest editions of the IARUMS Region 1 newsletter. IARUMS Region 1 Coordinator Wolf Hadel, DK2OM, reported last month […]

Russian “Buzzer” Disappears, Chinese “Foghorn” Returns

The International Amateur Radio Union Region 1 (IARU-R1) Monitoring System (IARUMS) March newsletter reports that the Russian “buzzer” on 6,998.0 kHz has disappeared. For a long time the system interfered with the lower edge of the 40-meter band. In addition, a Russian F1B transmission on 7,193 kHz — believed to be emanating from Kaliningrad — […]

STANAG 4285 Signal Showing Up on 40 Meters, Other Intruders Spotted

A STANAG 4285 intruder has been showing up on 7101.8 kHz, according to the International Amateur Radio Union (IARU) Region 1 Monitoring System (IARUMS). “The signal was strong in South America, but rather weak in Europe,” the latest edition of the IARUMS newsletter reported. “We had the same problem in earlier times. Location probably Falkland […]

“Mysterious Foghorn” is Chinese Over-the-Horizon Burst Radar

The International Amateur Radio Union Region 1 (IARU-R1) Monitoring System (IARUMS) newsletter reports a mysterious “foghorn” — a Chinese over-the-horizon (OTH) burst radar — is operating in Amateur Radio bands. “We observed the mysterious foghorn on 7, 10, and 14 MHz,” the newsletter recounted. “This is a Chinese OTH radar, which is often jumping, and […]

IARU Region 1 Monitoring Service Reports an Apparent Success

The International Amateur Radio Union Region 1 (IARU-R1) Monitoring System (IARUMS) reports that the Russian military apparently responded positively to a complaint from German telecommunications authorities to eliminate an intruding signal on 20 meters. The Russian Navy “RDL” signal from Crimea had been transmitting on 14.180 MHz, using F1B at 50 baud and 200 Hz […]

New Russian Arctic Over-the-Horizon Radars Set for 2017 Startup

According to media accounts, more long-range, new over-the-horizon (OTH) radars that can identify aerial and sea targets hundreds of miles away are scheduled to begin operation next year in the Russian Arctic. It’s doubtful, however, that the news heralds the return of interference on the level of that generated by the so-called “Russian Woodpecker” OTH […]

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