The Northstar NS100 marine VHF DSC marine radio, available in single and dual station models, combines the ease-of-use and peace-of-mind you expect from Northstar and provides a wealth of useful features. The latest DSC SC-101 (US) or Class-D (EU) functions dedicated distress call button automatically transmits MMSID and position until an acknowledgement is received Alphanumeric handset with built-in marine screen for easy operation and information display Access to all available marine VHF channel banks including weather. Adjustable contrast on the handset LCD and adjustable backlighting on for low light and no light use