What It Does

Echo turns the sub-GHz radio band into something you can read on your phone. It works in three broad modes, all driven from the mobile app over Bluetooth LE.

Capture and decode#

Echo listens for the short bursts that remotes and sensors transmit, then works out what they are. It recognises:

• 16 fixed-code remote protocols, from EV1527 and PT2262 through Hörmann, Clemsa, Nexa, Dooya, Magellan and more, plus a general decoder for cheap unnamed remotes. See Fixed-code decoders.
• Rolling-code remotes (KeeLoq, Somfy RTS, Security+, and an identification list) captured and classified, never decrypted. See Rolling-code.
• Sensor traffic, the tyre-pressure, weather and alarm sensors Echo supports. See Sensor decoders.

Analyse#

A frequency hunter scans a range and points you at the strongest channel, and an autotune feature locks onto remotes whose frequency has drifted with age. See Sub-GHz capture.

Defend#

Four listen-only detectors watch for jamming, duplicate remotes ("your fob was captured"), a silenced sensor, and the tell-tale RollJam pattern, and push an alert to your phone. See RF counter-surveillance.

Work standalone and together#

A single programmable button lets Echo arm a capture or send a saved signal with no phone in reach (Standalone button). Phone-GPS wardriving, an experimental Echo-to-Echo link and a shared signal library round out the connected layer.