Introduction

External Annunciators

When external indicators are installed, the Apollo GX will also provide an external indication when Parallel Track (PTK) is activated or a Message (MSG) is received. The GX50/60 also have external annunciator controls for OBS/Hold and Approach Active. “Hold” refers to suspending waypoint sequencing.

Controls The Apollo GX uses a variety of controls to manage the features. The controls include a power knob, dual-concentric knobs (called LARGE and SMALL), hard keys, and “smart” keys.

Power Knob

The knob on the top right side of the Apollo GX 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. Full rotation and the push-pull capabilities are only used in the GX60/65.

Power/Volume/Squelch Knob(GX60/65)

The knob on the right side of the GX60/65 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.

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. The LARGE knob moves the cursor and the SMALL knob changes characters. Either may change pages depending on the function.

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