A new law introduced by Beijing appears to have resulted in ships turning off their automatic AIS beacons (161.975 MHz or 162.025 MHz) when in Chinese waters Since the start of the month, vessels from around the globe, from tankers to cargo ships, have disappeared from global tracking systems as th

Fixed SoapyPlutoSDR driver on MacOS. MacOS releases are now signed & notarized.

A simple AIS tuner and generic dual-frequency FM demodulator - GitHub - dgiardini/rtl-ais: A simple AIS tuner and generic dual-frequency FM demodulator

Derek OK9SGC has recently posted a write-up of how they’ve been able to receive the Ku-band beacon signals from the Starlink constellation of communication satellites continually launched by SpaceX since 2015. While we recently covered Starlink Beacons being captured with a HackRF Supercluster Derek has noted that receiving the beacons requires little more than an LNB, a low-cost SDR such as the RTL-SDR V3 and a power injector to provide 12V DC to the LNB. Derek notes that a dish is not even required as the beacons transmit with high power. Due to the low earth orbit and thus high