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Controls Power/Volume/Squelch Knob(SL60)
The knob on the left side of the SL60 controls power
on/off, volume, and squelch test. Rotate the knob
clockwise (CW) past the detent to turn the power on.
Continue rotating the knob to the right to increase
speaker and headphone amplifier volume level.
Rotate the knob to the left to reduce the volume
level. Pull the knob out to disable automatic squelch.
Power Knob (SL50)
The knob on the left side of the SL50 controls
power on/off. Rotate the knob clockwise (CW) past
the detent to turn the power on. Rotate the knob
fully counterclockwise to turn the power off.
Small and Large Knobs
The dual concentric knobs on the right side of the
front panel are used to select pages, edit characters
and values, or other options.
Keys Nine backlighted keys allow you access the
functions in your Apollo SL50/60.
Flip/Flop (Arrows) - SL60
Press the Flip/Flop key to switch between the
active (left-most) and standby (right-most)
frequency while in the Nav or Com functions. You
may use an optional external Flip/Flop key for the
same operation as the front panel control. Switching
between frequencies is disabled while you are
transmitting or editing in any function.
NRST (Nearest Waypoint) - SL50
The Nearest Waypoint (Emergency) mode displays
the closest waypoints to your position.
COM (Communications Radio Mode) - SL60
Press the COMkey to operate the Communications
radio functions.
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Introduction
COM
NRST