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BeiDou is actually more advanced as it supports full-duplex communication, which essentially allows you to send message to the satellites.
by lileeyao 8y ago
BeiDou is actually more advanced as it supports full-duplex communication, which essentially allows you to send message to the satellites.
- bdamm 8y agoAnd then what? A.la. personal emergency beacons?
- ObsoleteNerd 8y agoSatellite based SMS would be pretty amazing for hikers/campers/etc.
- isostatic 8y agohttps://www.globaltelesat.co.uk/isatphone-2-satellite-phone-rental https://www.globaltelesat.co.uk/isatphone-2-satellite-phone-...
- HeadsUpHigh 8y agoThis exists for at least a decade now.
- tialaramex 8y agoGPS Block IIIA actually does have a COSPAS SARSAT receiver on it and of course it can transmit on GPS frequencies. Today a Personal Locator Beacons doesn't think about the signals it receives from GPS other than as a source of location, but the intent is that a future COSPAS SARSAT upgrade will let the operators send a return message via GPS if they conclude you need rescuing.
- est 8y agolmao full-duplex. It's just the first generation of BeiDou has a auxiliary uplink channel for short messages.
- SmellyGeekBoy 8y agoAKA full-duplex
- est 8y agofull-duplex transmission of data in two directions simultaneously in the same channel. SMS is a done via Beidou-1 satellites, and Beidou-1 don't serve as positioning at all today. Beidou-2 is just like GPS, positioning service only, no SMS or shit.
- TeMPOraL 8y agoI hope getting a location fix doesn't require actually sending anything to the satellite, as that would be a monumentally stupid design.