by Richard Godfrey | Nov 22, 2023 | WSPR
WSPR uses High Frequency (HF) ionospheric propagation to send signals around the world. Typical frequencies are in the range 3 MHz to 28 MHz. Transmission power levels are up to 5 W continuous and the duration of the transmission is 110.6 seconds. The US military (Air...
by Richard Godfrey | Oct 24, 2023 | Flight Path
In a guest post Gerard Mendoza Ferrandis takes a good look at the facts regarding the disappearance of MH370 and evaluates the various theories that have been put forward. While some of the theories are based on the facts we had at the time, many others have been...
by Richard Godfrey | Aug 31, 2023 | WSPR
MH370 is one of the greatest aviation mysteries of all time. Malaysian Airlines flight MH370 was operated by a Boeing 777 aircraft with the registration 9M-MRO. The aircraft departed Kuala Lumpur International Airport, Malaysia on 8th March 2014 just after midnight at...
by Richard Godfrey | Jun 9, 2023 | WSPR
Qatar Airways flight QTR901 registration A7-BEO departed Perth International Airport on runway 21 on 1st November 2022 at 15:06:50 UTC (23:06:50 AWST local time). There was good weather in the Perth area that evening with a high pressure zone and a surface pressure of...
by Richard Godfrey | Apr 18, 2023 | WSPR
In this case study we analyse the tragic flight of an Alouette II SE313B medical evacuation helicopter registration N45VX, which crashed off the coast of Palawan Island in the Philippines on Wednesday 1st March 2023. The helicopter was known locally as the ‘Yellow...
by Richard Godfrey | Feb 26, 2023 | Flight Path
A Comprehensive Overview on the Ongoing Search for MH370 by Gerard Mendoza Ferrandis. On 8 March 2014, the greatest mystery in the history of aviation took off from Kuala Lumpur International Airport (KUL) en route to Beijing Capital International Airport (PEK). How...
by Richard Godfrey | Dec 11, 2022 | Debris Drift
New clues reveal the demise of MH370. Since the crash of MH370 in the Indian Ocean a considerable amount of physical evidence has been gathered. 36 pieces of floating debris have been found and delivered to the Malaysian authorities for investigation. Official reports...
by Richard Godfrey | Oct 28, 2022 | WSPR
In this case study we analyse the tragic flight of a Cessna 551 Citation II/SP registration OE-FGR, which crashed after fuel exhaustion into the Baltic Sea off the coast of Latvia on Sunday 4th September 2022. The aircraft departed Jerez-La Parra Airport (XRY) in...
by Richard Godfrey | Sep 8, 2022 | WSPR
MH370 crashed between 00:22 UTC and 00:27 UTC. At 00:22 UTC the position from the WSPRnet analysis was estimated to be 30.00°S 98.70°E. At 00:26 UTC the position from the WSPRnet analysis was estimated to be 30.57°S 98.75°E. The crash location is further north than...
by Richard Godfrey | Jul 13, 2022 | WSPR
In a previous paper we have successfully detected and tracked a large aircraft, a Boeing 777-300ER, but what about small aircraft. In this case study we detect and track the flight of a Diamond DA40 single engine aircraft registration N395JP during a 48 minute...
by Richard Godfrey | Jun 23, 2022 | WSPR
Emirates flight EK421 on 1st June 2022 from Perth, Australia to Dubai, UAE took 10 hours 31 minutes. The aircraft operating this flight was a Boeing 777-300ER and departed Perth International Airport at 14:26 UTC arriving in Dubai International Airport at 00:57...
by Richard Godfrey | Jun 1, 2022 | WSPR
There are around 4 Million WSPRnet global links between amateur radio transmitters and receivers every day. Approximately 60,000 of these are propagations over distances greater than 15,000 km. The question arises exactly how far can HF radio waves propagate?...
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