23-50-00
AMM
% Pressing the COM 1/2 button (15) activates the split com function. While this mode is active, % COM 2 is dedicated solely to the copilot as a MIC/audio source while COM 1 is dedicated to the % pilot as a MIC/audio source. The pilot can still listen to COM 3 (COM 3 is not used in the DA % 40 installation), NAV 1, NAV 2, DME, ADF, and MKR. The pilot and copilot can simultaneously % transmit in this mode, the pilot transmitting over COM 1 and the copilot transmitting over COM % 2. The SPLIT COM mode is canceled by pressing the COM 1/2 button a second time.
% Pressing NAV 1, NAV 2, DME, ADF (16), or MKR (2) (see MKR beacon operation) selects that % audio source. A second button press deselects the audio source.
% (3) GMA 340 Intercom Functions
% Intercom volume and squelch (VOX) are adjusted using the following front panel knobs:
%) LEFT SMALL KNOB (5) - Unit on/off power control and Pilot ICS volume. Full counter-% clockwise DETENT position OFF.
%) LEFT LARGE KNOB (6) - Pilot ICS mic VOX squelch level. Clockwise rotation increases the % amount of mic audio (VOX level) required to break squelch. Full counter-clockwise is the 'hot % mic' position.
%) RIGHT SMALL KNOB (7) - IN position: Copilot ICS volume. OUT position: Passenger ICS % volume.
%) RIGHT LARGE KNOB (8)- Copilot and passenger mic VOX squelch level: clockwise rotation % increases the amount of mic audio (VOX level) required to break squelch. Fully counter-% clockwise is the 'hot mic' position.
% Each microphone input has a dedicated VOX circuit to ensure that only the active % microphone(s) is/are heard when squelch is broken. After the operator has stopped talking, the % intercom channel remains momentarily open to avoid closure between words or normal pauses.
%
Page 10 Doc # 6.02.01 09 Jan 2003 Rev. 4
23-50-00
Communications
AMM
% The GMA 340 provides three intercom modes: PILOT, CREW and ALL. The mode selection % is accomplished using the PILOT (10) and CREW (9) buttons.
% These modes allow different degrees of interaction between the crew and passengers:
%) PILOT mode isolates the pilot from everyone else and dedicates the airplane radios to the % pilot exclusively. The copilot and passengers share communication between themselves but % cannot communicate with the pilot or hear the airplane radios.
%) CREW mode places the pilot and copilot on a common ICS communication channel. The % passengers are on their own intercom channel and can communicate with each other, but % cannot communicate with the crew or hear the airplane radios.
%) ALL mode allows full intercom communication between everyone plugged into the GMA % 340. Airplane radios are heard by all.
% (4) GMA 340 Marker Beacon Receiver Operation
% The marker beacon receiver has visual and audio indicators to show when the airplane passes % over a beacon transmitter.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址:钻石40飞机维护手册 DA 40 SERIES AMM 2(37)