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zkojq wrote:How easy or hard would it be for a military or police force to calculate the location of a receiver that's connected to FR24/radarbox/ADSBexchange?
zuckie13 wrote:Seems China does not like folks picking up those pesky ADS-B signals being used to show us where planes are. Banned the site and confiscated equipment from at least one person.
Wouldn't anything they really want to hide not be sending ADS-B signals anyway?
https://theprint.in/opinion/chinascope/ ... ta/762663/
https://onemileatatime.com/news/china-b ... htradar24/
spinotter wrote:zuckie13 wrote:Seems China does not like folks picking up those pesky ADS-B signals being used to show us where planes are. Banned the site and confiscated equipment from at least one person.
Wouldn't anything they really want to hide not be sending ADS-B signals anyway?
https://theprint.in/opinion/chinascope/ ... ta/762663/
https://onemileatatime.com/news/china-b ... htradar24/
Is it possible to operate ADS-B equipment in such a way that authorities cannot detect it?
zuckie13 wrote:Seems China does not like folks picking up those pesky ADS-B signals being used to show us where planes are. Banned the site and confiscated equipment from at least one person.
Wouldn't anything they really want to hide not be sending ADS-B signals anyway?
https://theprint.in/opinion/chinascope/ ... ta/762663/
https://onemileatatime.com/news/china-b ... htradar24/
zkojq wrote:How easy or hard would it be for a military or police force to calculate the location of a receiver that's connected to FR24/radarbox/ADSBexchange?
phatfarmlines wrote:From the article, the ban impacts anyone within China access to FR24. The ADS-B at-home kit is a crowdsourcing way to improve the signals for flights operating within the locale of said ADS-B kit.
Not sure what this means on how China will block FR24 signals from aircraft operating through Chinese skies.
But only one person in China had the ADS-B kit set up at their home?
spinotter wrote:Is it possible to operate ADS-B equipment in such a way that authorities cannot detect it?
peterinlisbon wrote:zkojq wrote:How easy or hard would it be for a military or police force to calculate the location of a receiver that's connected to FR24/radarbox/ADSBexchange?
Actually it wouldn't be that hard. They could send test signals from different locations and see what appears on the map. This would give the approximate location. Then they could come closer and send increasingly weak signals until they find the exact location. The other way to do it would be by hacking into the computer network (which they control anyway) and finding whose PC is transmitting information to FR24.
peterinlisbon wrote:zkojq wrote:How easy or hard would it be for a military or police force to calculate the location of a receiver that's connected to FR24/radarbox/ADSBexchange?
They could send test signals from different locations and see what appears on the map. This would give the approximate location. Then they could come closer and send increasingly weak signals until they find the exact location.
zkojq wrote:peterinlisbon wrote:zkojq wrote:How easy or hard would it be for a military or police force to calculate the location of a receiver that's connected to FR24/radarbox/ADSBexchange?
They could send test signals from different locations and see what appears on the map. This would give the approximate location. Then they could come closer and send increasingly weak signals until they find the exact location.
That's what I was thinking. Either spoof signals or the real transponder of a police helicopter. Move the transmitter around a bit and see where it shows up and where it doesn't. The rest would just be trigonometry although I'm not sure how precisely you could zero on the exact location.