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"CO M1"
BUS 1
•
"RM - SWITCH"
0
0
RELAIS GENERAL RADIO
RADIO MASTER RELAY
ON
INTERRUPTEUR GENERAL RADIO
RADIO MASTER SWITCH
AFAF
Validity : GNS 430 COM 1 installation — Wiring diagram
Figure 4
23 12 00 (CI) Page 7 NOV 01
PAGE INTENTIONALLY LEFT BLANK
AFAF
Validity : GNS 430 23 12-00Page 8
(co NOV 01
COM 1 INSTALLATION
DESCRIPTION AND OPERATION
1. GENERAL (Figure 1)
The optional radiocommunication COM 1 installation allows radio transmissions necessary for air navigation. The installation consists of :
- the A51 VHF NAV / COMM. transceiver,
- the E31 antenna,
- the radio master relays,
- the S120 radio master switch.
For the description of navigation function of the A51 VHF NAV / COMM. transceiver - refer to 34-51-00. The installation also uses A50 audio control panel - refer to 23-11-00.
It is electrically supplied by "BUS 1" and "BUS 3" bars.
2. LOCATION (Figures 2 and 3)
COMPONENT QTY AREA ACCESS DOOR REFERENCE
A51 VHF NAV / COMM. transceiver 1 251C / 23-10-00
E31 antenna 1 220 / 23-12-02
Radio master relays 4 230 / 23-12-06
S120 radio master switch 1 251C or
254L / 23-12-00
Circuit breakers :
- CB 86 "NAV / COM 1"
- CB 60 "RM SWITCH " 1
1 PL1
PL1 /
/ WM
WM
3. OPERATION A. A51 VHF NAV/COMM. transceiver (Figure 4)
The VHF NAV / COMM transceiver enables air-to-ground or air-to-air communications within the 118.00 MHz to 136.9916 MHz frequency range.
It has the capability of programming up to 32 memory channel frequencies for later recall.
The L.H. side of the front panel includes all the controls necessary for equipment operation in communication mode as well as the display. The front panel consists of :
- a COMM. digital display unit subdivided in two windows. The left window displays the active frequency and the right "STBY" window displays the programmed frequency or standby frequency. "T" annunciation is displayed between the two windows when the VHF NAV/COMM transceiver is in transmission mode,
AHAH
Validity : KX 155A 23-12-00Page 1
(cm) NOV 01
BOITE DE COMMANDE AUDIO
AUDIO CONTROL BOX
( 23 - 11 - 00 )
ANTENNE
ANTENNA
E31
EMETTEUR - RECEPTEUR VHF - NAV / COMM
VHF - NAV / COMM TRANSCEIVER
A51
"NAV / COM1" "RM - SWITCH"
crm%
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本文链接地址：TB20 MAINTENANCE MANUAL 23 COMMUNICATIONS TB20飞机维护手册 通讯(28)
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