The IARU Region 1 (IARU-R1) Monitoring System newsletter reports that one of China’s HF Over-the-Horizon radars (OTH-R) has been transmitting on 6.999 MHz, impinging on the very low end of the 40-meter band.
As the newsletter reported: “A jumping Chinese OTH radar covered the CW DX-edge of our exclusive 7 MHz band on November 17 at about 1500 UTC and later (long lasting).” The signal was 67 sweeps per second with a 10 kHz bandwidth.
Elsewhere on 40 meters, military ALE transmissions have been heard from Kyrgyzstan on 7050.0 kHz. IARUMS also reports that the Australian Jindalee Operational Radar Network (JORN) has been heard on 10.131 MHz in the amateur 30-meter band; Amateur Radio is secondary on 30 meters.
Radio Eritrea appeared in November on 7180 kHz together with white noise from Ethiopia. The frequencies 7146.5, 7175, and 7185 kHz were reported to be still in use as well.
Reports of Amateur Radio band intruders may be logged on the IARU Region 1 Monitoring System logger.
MFJ-269C Covers 530 KHz-230 MHz and 415-470 MHz . . . SWR . . . Complex RFImpedance: Resistance(R) and Reactance(X) or Magnitude(Z) and Phase(degrees) . . . Coax cable loss(dB) . . . Coax cable length and Distance to fault . . . Return Loss... Read more
“Recently, the old VHF Ericsson handheld used for the digipeater on the ISS died and it was replaced with an equivalent UHF one. This is my first time digipeating through it. I also tried to make my first contact through it. I success... Read more
Photo: CN2AA Raw Scores Before Checking 2016 WPX SSB Contest Raw scores as calculated before log checking. Last update: 2016-04-06 Please report any errors to the Contest Director so they can be corrected during the log checking. See The Re... Read more
“Dear Partners & Customers, As a rule, unexpected discoveries of the modern world take place at the intersection of technologies. We implanted Bluetooth technology in the RigExpert AA-55 ZOOM antenna analyzer and opened up new app... Read more
Listen to Martian wind blow across NASA’s InSight lander. The spacecraft’s seismometer and air pressure sensor picked up vibrations from 10-15 mph (16... Read more
ARRL has announced the winners of the 2018 QST Antenna Design Competition. “Dozens of entries were received, but only three could win,” said... Read more
The 2017 ARRL Bill Leonard W2SKE Professional Media Award for Audio Reporting was presented in New York on December 6 to the producers and staff of th... Read more