"The Target Navtex Pro is packed with features, yet it still remains remarkably easy to install and use. A unique feature of the receiver is the ‘Data Streamer”. This is a very useful function that enables the user to see live messages scrolling along the bottom line of the display, whether they are programmed in or not. 519 and 490 kHz operation 800 line memory with line space between messages and no words broken at line e nds Automatic reset from power up Single and multiple line message scrolling 5 day program memory - 10 day data memory Program status can be viewed and changed at any time All messages displayed via Data Streamer whether programmed or not Switchable Backlight with power-save timer Easy to read text on a high-contrast backlit LCD Aerial - Active 195mm x 40mm stub. 7m cable Supply voltage 12-15v DC Current consumption 40mA + 200mA for switchable backlight Dimensions W-220mm, H-98mm, D-48mm"