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FEATURES OVERVIEW
Your Humminbird® VHF55S has the following features:
Channel 16/9 Priority Key: Provides quick access to emergency Channel 16, the universal and
most frequently-used marine channel, which is used for distress or safety communications.
Pressing and holding the 16/9 channel key for 3 seconds allows quick and easy access to Channel
9. Channel 9 is an alternate frequency for distress or safety in some areas in the event Channel
16 is congested.
PLL (Phase Lock Loop) Controlled Circuitry: Provides accurate and stable channel selection.
Squelch Adjustment: Allows you to eliminate static and background noises during
communications.
Key Lock: Allows you to lock the keypad in order to prevent accidental key presses.
High/Low Transmit Power Selection: Allows you to select either High Power Transmit for long-
range communications or Low Power Transmit for shorter-range communications to save battery
power.
Battery Level Indicator: Indicates the amount of battery life remaining.
Battery Charging Station: Allows you to recharge your Ni-MH battery pack (not included with
all models)
Backlit LCD Display: Allows you to operate the radio in low light conditions.
Memory Channels: Allows you to store channels as “memory channels” that you can easily
retrieve for future use.
WX/BAND Key: Allows you to select the Weather Band, the U.S. Channel Band, the International
Channel Band or the Canadian Channel Band.
SCAN Key: Allows you to scan all channels, to scan channels saved in memory or to conduct a
priority scan.
Signal Strength Meter: Allows you to see the strength of the transmit and receive signals.
Dual Watch: Allows you to scan alternately between your currently-selected channel and
Channel 16 to make sure you don’t miss distress or emergency calls.
Tri Watch: Allows you to scan alternately between your currently selected channel, Channel 16,
and Channel 9 to make sure you don’t miss distress or emergency calls.
Normal Scan: Allows you to scan all available channels for active channels.
Memory Scan: Allows you to rapidly scan pre-programmed channels to locate active channels.
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