Humminbird VHF255SW - Manual (Page 8)

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FEATURES OVERVIEW
The Humminbird® VHF255S is a VHF Digital Selective Calling (DSC) Base Station marine
band radio with the following features:
• Access to all available U.S., International, and Canadian channels
(currently allocated).
• Allows unlimited memory channels for quick recall and memory scan.
• Provides as many as 20 user-programmable names with MMSI, 10 distress
calls and 20 individual calls for DSC communications. See the Maritime
Mobile Service Identity (MMSI) section for more information about this
important feature.
• Rotary volume control with power on/off, rotary channel selector and rotary
adjustable squelch knob provide convenient radio operation.
• Exceptional waterproofing performance complies with Japanese Industry
Standard Level 7.
• High/Low Transmit Power Selection allows you to select either High Power
Transmit (25 Watts) for long-range communications or Low Power Transmit (1
Watt) for shorter-range communications to save battery power.
• Separate Channel 16/9 Priority key provides quick emergency calling on
channels 16 or 9. Emergency Channel 16 is the universal marine channel most
frequently-used for distress or safety communications. In addition, you can
use the 16/9 channel key to access Channel 9, an alternate frequency for
distress or safety in some areas in the event Channel 16 is congested. Check
with local authorities to see which channel is used in your area.
• Adjustable brightness of backlight on the large LCD for good visibility in
various conditions.
• Built-in speaker provides clean, crisp audio performance.
• External interface makes it easy to connect to an optional-purchase GPS
Receiver and/or an optional-purchase external speaker, and supports
the NMEA 0183 National Marine Electronics Association standard for
data communication.