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1 Equipment
Description
1.1 INTRODUCTION
Congratulations on your purchase of Radio HUMMINBIRD VHF255S
DSC marine band radio. VHF255S is a VHF DSC Base Station Radio with output
power of 25/1 watt. It should be powered by a 13.8VDC power supply.
The radio can support DSC (Digital Selective Calling) operation with specially
designed DSC unit, which meets the standard of ITU-R, M493-10. When being
connected with GPS, it will display the position (longitude and latitude) of the
vessel. Compact fist microphone makes for convenient operation of the
equipment
Other features of the radio includes:
Access to all available INTL USA CANADA channels (currently allocated).
Allows up to all channels be used as 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.
Rotary volume control with power on/off, rotary channel selector and rotary
squelch adjustable knob give you more convenient operation of the radio.
Outstanding performance of waterproof complying with Japanese Industry
Standard level 7.
25 watts high output power allows you make contact with others in a long
distance of marine communication; and 1watt low power for short distance.
Separate
169
button, for quick selection of the emergency call on CH16.
Adjustable brightness of backlit for good visibility of the large LCD in various
circumstance,
External interface easy to connect to GPS and external speaker.
Mounting gimbal for firm and reliable location of your base station in
difference condition.
2
CONTROLS AND LCD DISPLAY
2.1
BASE STATION (PANEL)
Volume and Power On/Off
①
0-270°rotary control knob. Turn clockwise to
power on. Continue to turn until a comfortable
audio level.
Squelch
②
Use this knob to set the squelch threshold,
which cuts off the receiver when the signal is
too week for reception of anything but noise.
CH/enter
③
Rotary encoder (no stop) with momentary push
`
Rotate this knob to change the current number
and change values in menu mode or during
programming. Press the knob to enter values
Band / Save
④
Select band (USA. INT and CAN) and set
memory channels
⑤
Cancel/wx
The key to cancel last selection or change
without saving. It allows step back one level on
menu mode. It cancels DSC Distress calls &
auto-retransmission of DISTRESS calls. Hold
the key entry wx mode
2
②
①
③
④
⑤
⑥
⑦
⑧
⑨
⑩
