Side-Power SEP 100/185 T Instrukcja Obsługi Pobierz pdf (Strona 162)

910 - 6 Page Date: 4. Februar 2011

Pilot´s Operating Handbook

EXTRA 330LX

Section 910

NAT AA83-001 Intercom

910.7.2 OPERATION

VOX OPERATION

The VOX control is used to set the level of audio required to activate the microphones.

The AA83-001 provides three modes of intercom operation, selected by the position of the VOX

control.

LIVE ICS When the VOX control is positioned fully ccw to the LIVE position, all mics will be

live, and any sound picked up will be processed by the ICS system (hot mic).

KEYED ICS When the VOX control is positioned fully cw to the MAX position, the intercom

will be in a keyed-only mode.

VOX ICS When the VOX control is positioned between fully cw and fully ccw, the intercom

is in VOX mode. To establish the VOX threshold, rotate the control ccw until the

LED turns red, and then rotate the control cw until the LED goes dark. Continue

turning the control cw until the desired voice sensitivity is set.

NORMAL OPERATION

In normal use, the AA83-001 serves as a common intercommunication system, and a flow-

through interface for connection to the ship’s external communication system. The NORM mode

(default) permits everyone on the system to talk to each other, listen to music, and hear all radio

communications.

Radio transmit functions may be initiated by either the pilot or the copilot. The pilot has priority.

In NORM mode, external tie line users are included in the ICS communications.

PIL ISO (PILOT ISOLATION) OPERATION

In normal operation, the pilot and copilot hear the same signals from the aircraft communication

system. Sometimes this is not desirable from the pilot’s perspective, for instance during

communication with the tower on approach, or when discussions on the intercom would be a

distraction. Many times the copilot position is simply another passenger, and the pilot may wish

to be isolated from him.

PILOT ISO mode separates the radio communications without pilot from the intercom network,

allowing confidential interference from the copilot intercom or music. The pilot has no ICS

operation, and all signals are presented in mono format during this mode. The other user is

unaffected and continues to use the entertainment functions of the AA83-001.

While in PILOT ISO mode, the pilot maintains complete control of all the radio functions of the

intercom, and the pilot mic and TX keyline are directly connected to the transceiver. The pilot

phones are driven by the transceiver.

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