The HT644 ATIS has been designed specifically for use when navigating inland waterways in mainland Europe. A FFSK data signal is sent at the end of each transmission, which carries information about the vessel, including a call sign unique to the craft allowing it to be tracked and monitored for safety purposes. Entel HT644 ATIS VHF LCD Marine Two Way Radio The HT644 ATIS has been designed specifically for use when navigating inland waterways in mainland Europe. A FFSK data signal is sent at the end of each transmission, which carries information about the vessel, including a call sign unique to the craft allowing it to be tracked and monitored for Entel HT644 ATEX Marine - VHF Marine 156-163.275 MHZ - Submersible to IP68 (5 metres for 1 hour) - MILSTD 810C/D/E/F - 2000mAh Li-Ion battery - All INT, USA and CAN channels - Robust accessory socket - LCD display - 7-key keypad - Clone data from one radio to another - Low battery warning - VOX hands free (with audio accessory) Standard Package Entel HT644 GMDSS Manuals & User Guides. User Manuals, Guides and Specifications for your Entel HT644 GMDSS Transceiver, Two-Way Radio. Database contains 2 Entel HT644 GMDSS Manuals (available for free online viewing or downloading in PDF): Quick start user manual, Operation & user's manual . Established in 1995, the Entel group designs and manufactures business critical radio communications equipment. Owning and managing both the Research & Development and Manufacturing functions, ensures that Entel has a deserved reputation for exacting standards of innovation, quality and excellence. The Entel HT644 has been designed specifically for those requiring a no compromise marine portable. From the rugged ergonomic design that fits comfortably in your hand, to the exceptionally loud audio, the HT644 Series 2 portable easily outclasses the competition. The HT644 Series 2 portable is built to MIL-STD 810C/D/E/F for tough enduring performance and (D) www.entel.co