Tag: IARUMS

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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