Humminbird VHF55S - Manual (Page 12)

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USING YOUR VHF55S
You should be famliar with several operating procedures:
1. Turning the power on/off.
2. Adjusting Squelch.
3. Selecting the U.S./International/Canadian band.
4. Transmitting and receiving.
5. Accessing the 16/9 priority channels.
6. Selecting a channel.
7. Selecting high/low power.
8. Locking the keypad.
9. Selecting a weather channel.
10. Adding channels to memory.
11. Scanning.
12. Accessing channels saved to memory.
13. Using the monitor modes.
14. Resetting the radio.
1. Turning the Power On/Off
Use the PWR/VOL knob to turn the radio on, and once on, to adjust the volume as well.
To turn on the radio:
1. Rotate the PWR/VOL knob to turn the radio on or off. The knob will make a clicking noise
when you have turned the radio on.
2. Once on, rotate the PWR/VOL knob further to adjust the volume.
2. Adjusting Squelch
Squelch is used to eliminate static and background noise in between transmissions, and allows
for silent operation of the radio until a transmission is received. If Squelch is set too high, only the
strongest transmissions can be heard, and if it is set too low, intermittent static and noise may be
annoying. Squelch is controlled by the SQ knob located on the top of the radio.
To set Squelch:
1. Turn the SQ knob counter-clockwise as far as it will go. You will hear a lot of static.
2. Then turn the SQ knob clockwise until the static stops; this is the correct position for the
SQ knob.
25931_Radio_Man_531460-1_A 10/7/05 9:35 AM Page 12