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Lowrance - LVR-250 Installation and Operation Instructions 17
1-6 Basic Operation and Key Functions
All possible keys and their functions are listed here. Note that some of the keys may
not be available depending on your Lowrance VHF radio model.
Key Function
VOL/PWR Volume and Power. Turn clockwise to power on. Continue to turn until a
comfortable volume is reached. VOL/PWR will also adjust the settings of an
external speaker, if connected.
SQL Squelch or Threshold Level. Sets the threshold level for the minimum
receiver signal. Turn fully counterclockwise until random noise is heard,
then turn slowly clockwise until the random noise disappears.
Make another 1/4 turn clockwise for best reception in open sea
conditions.
In areas of high noise (eg close to large cities) reception may improve if
sensitivity is reduced. Either turn SQL slowly clockwise or use the LOCAL
setting. See section 2.3.
16/9 Priority Channel. Also on the microphone. Press to cancel all other
modes and to tune into the priority channel. Press again to return to your
original channel.
The default is Channel 16. To make Channel 09 the priority channel, hold
down 16/9 until a beep sounds and 09 is displayed.
16 Priority Channel. LVR-250 EU only. Also on the microphone. Press to
cancel all other modes and to tune into the priority channel. Channel 16,
on high power. Press again to return to your original channel.
VR-2