3 ms·
It's all 2.4ghz. The 7 train uses 2.4ghz (literally WiFi I've heard) for CBTC. The other lines don't have train communication, but the bluetooth beacons on them
by jaxbot 8y ago
It's all 2.4ghz. The 7 train uses 2.4ghz (literally WiFi I've heard) for CBTC. The other lines don't have train communication, but the bluetooth beacons on them and Transit Wireless (station WiFi) are on the same spectrum of course.