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Does anyone have more information in this WSPR system? I’m not certain how someone could have access to enough stations to pick up enough stray radio signals to

Does anyone have more information in this WSPR system? I’m not certain how someone could have access to enough stations to pick up enough stray radio signals to detect a flight path. It sounds very intricate. Edit: sounds like it’s based off of amateur radio operators https://en.wikipedia.org/wiki/WSPR_(amateur_radio_software) https://en.wikipedia.org/wiki/WSPR_(amateur_radio_software)

visviva 5y ago
I'm also interested in learning about how this can be used for tracking. From the paper [1]: > The method is based on pattern recognition of anomalies in the radio transmissions between stations in the global WSPR network in the received signal-to noise ratio (SNR) and/or the drift of the received signal when compared to the transmission frequency. These anomalies in transmission links may be due to a number of causes, including an aircraft crossing the transmission path. That's pretty vague, but it's a start. [1] https://www.dropbox.com/s/tvtfw14tfyfljie/Global%20Detection%20and%20Tracking%20of%20Aircraft%20in%20the%20Search%20for%20MH370.pdf?dl=0 https://www.dropbox.com/s/tvtfw14tfyfljie/Global%20Detection...
entropea 5y ago
It's based off of amateur radio yes. As a ham this is actually really really cool. A Raspberry Pi is able to transmit detectable WSPR off of it's 10dBm output from the GPIO and an antenna if you have a callsign and want to try it. There is a database & map of current WSPR activity on all amateur bands. I frequently use it for propagation indicators. https://wsprnet.org/drupal/wsprnet/map https://wsprnet.org/drupal/wsprnet/map
wglb 5y ago
This is the article that underscores much of this work on tracking: https://www.dropbox.com/s/w43gu64vn7jvmxm/Using%20the%20WSPRnet%20and%20Inmarsat%20Satellite%20data%20in%20the%20search%20for%20MH370.pdf?dl=0 https://www.dropbox.com/s/w43gu64vn7jvmxm/Using%20the%20WSPR... Quite fascinating.

visviva 5y ago

I'm also interested in learning about how this can be used for tracking. From the paper [1]: > The method is based on pattern recognition of anomalies in the radio transmissions between stations in the global WSPR network in the received signal-to noise ratio (SNR) and/or the drift of the received signal when compared to the transmission frequency. These anomalies in transmission links may be due to a number of causes, including an aircraft crossing the transmission path. That's pretty vague, but it's a start. [1] https://www.dropbox.com/s/tvtfw14tfyfljie/Global%20Detection%20and%20Tracking%20of%20Aircraft%20in%20the%20Search%20for%20MH370.pdf?dl=0 https://www.dropbox.com/s/tvtfw14tfyfljie/Global%20Detection...

entropea 5y ago

It's based off of amateur radio yes. As a ham this is actually really really cool. A Raspberry Pi is able to transmit detectable WSPR off of it's 10dBm output from the GPIO and an antenna if you have a callsign and want to try it. There is a database & map of current WSPR activity on all amateur bands. I frequently use it for propagation indicators. https://wsprnet.org/drupal/wsprnet/map https://wsprnet.org/drupal/wsprnet/map

wglb 5y ago

This is the article that underscores much of this work on tracking: https://www.dropbox.com/s/w43gu64vn7jvmxm/Using%20the%20WSPRnet%20and%20Inmarsat%20Satellite%20data%20in%20the%20search%20for%20MH370.pdf?dl=0 https://www.dropbox.com/s/w43gu64vn7jvmxm/Using%20the%20WSPR... Quite fascinating.