The NASA BT3 Bluetooth Navtex S2 is a dual-frequency Navtex receiver that decodes and stores safety and navigational broadcasts for viewing on Android Bluetooth-enabled phones and tablets.

• Dual-frequency Navtex reception — 518 kHz and 490 kHz
• Internal memory holds over 400 messages; new messages overwrite the oldest
• Bluetooth link to Android devices for message download and local viewing
• Android app enables search, station selection and message-type filtering
• Supplied with E-vector antenna; H-vector antenna available for difficult reception
• Antenna connects via 7 metre (23 ft) cable and can be rail-mounted
• Fused power cable for permanent 12 V supply; built for continuous operation
• Stored messages remain viewable offline; optional iOS app available from third-party suppliers

Download the Android app from Google Play to programme stations, search stored messages and manage filters; install the receiver permanently using the supplied fused power lead for best reliability.