Construction of a new shortwave radar for the US Air Force is currently beginning on the Pacific island of Palau. This was announced by the
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Observations of Over-the-Horizon Radar Interference in Ham Bands Top All Others
The volume of reports of over-the-horizon (OTH) radar interference from observers working with the International Amateur Radio Union (IARU) Region 1 Monitoring System (IARUMS) dwarfs
Read moreIARU Reports Another Over-the-Horizon Radar System is Under Construction in India
In October, the International Amateur Radio Union (IARU) Region 1 Monitoring System (IARUMS) newsletter reported on the continuing run of over-the-horizon radar (OTHR) troublemakers that
Read moreIs India building its own over-the-horizon radar (OTHR)?
According to a report by Alpha Defense India, the Defence Research and Development Organisation’s premier radar development laboratory is working on an “over-the-horizon” OTH radar
Read moreWSJT-X version 2.4.0 Now Generally Available, Version 2.5.0 on the Horizon
WSJT-X version 2.4.0 now is available in general release. According to co-developer Joe Taylor, K1JT, WSJT-X version 2.4.0, includes a new digital mode, Q65. This protocol is designed
Read moreBushcomm Horizon Multi-Band Loop Antennas LOOP-20
Antenna, Loop, Magnetic, 20-10M, 125 W PEP, Each Magnetic- loop antennas have existed almost since radio began. The recent resurgence of interest in them is
Read moreOver-the-Horizon Radars Causing Widespread Interference on 40 Meters
Over-the-horizon (OTH) radars continue to plague various amateur radio bands. Those operating on exclusive ham radio allocations have been complaining for years, but military systems
Read moreOver-the-Horizon Radars Continue to Plague Amateur Bands
The International Amateur Radio Union Region 1 Monitoring System (IARUMS) reports a “new kind” of over-the-horizon (OTH) radar on 20 meters. The intruding signal, which appears to
Read moreJust When You Thought It Was Safe: Chinese Over-the-Horizon Radar Appears on 40 Meters
The International Amateur Radio Union Region 1 (IARU-R1) Monitoring System (IARUMS) reports that one of China’s over-the-horizon radar (OTHR) installations has been causing interference in
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