User's Manual

C O N T R O L M O D U L E D C P R O - X U S A G E

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Control Module Operation

1. Fail Safe - if batteries are dead or the unit is turned off, microphone

and earphones will function when connected to aircraft intercom.

2. The DC PRO-X headset is shipped with the Auto Shutoff feature OFF.

In this mode, the Hybrid ENC will function whenever the power is ON.

3. When Auto Shutoff is set to ON, unit will turn off automatically after 5

minutes when:

• Intercom/audio panel turned off

• Not connected to intercom/audio panel

• Not in a phone call

4. Auto shutoff can be enabled/disabled via a small switch located under

the batteries (see Quick Start diagram page 6).

5. External Audio Management

• Aux audio is muted upon transmit or receive from intercom or radio

to ensure priority of audio voice communications

6. Cell Phone Interface

• All intercom parties hear cell phone outbound audio but cell phone

recipient’s voice is heard only by the headset connected/paired to

the cell phone

• Sidetone is present when connected to aircraft intercom. Sidetone may

not be (dependent on cell phone functionality) present when using the

headset and cell phone when not attached to the aircraft intercom

Proper Fitting

The advanced suspension system of the DC PRO-X is designed for

a simple and comfortable ﬁt. Proper ﬁt is necessary for maximum

effectiveness. The headset should be worn so that the head pad lightly

touches the top of the head. Adjust the sliding assembly on each side

as necessary (see Fig. 1), keeping slide positions equal on either side.

To adjust microphone placement, adjust boom up/down and in/out by

rotating and ﬂexing the boom as necessary. Ideal microphone place-

ment is 1/8” from the lips, as this will provide maximum intelligibility

and ambient noise rejection.

Control Module Operation (cont.)

7. Music Listening

• The Bluetooth

wireless technology feature allows you to listen to your

favorite music when paired with cell phones, MP3, tablets, or other

compatible devices. When receiving transmission from ATC, music audio

will mute to prioritize communication. Once transmission is completed,

music audio will gradually return to the previously set volume level.

Fig. 1

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