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- an E34 GS antenna,
All
- an A59 VOR signal separator (option),
- an A60 GS signal separator (option),
- a course deviation indicator (CDI) (option),
- or an A95 VOR / LOC converter (option) in conjunction with the horizontal situation indicator heading reference system - refer to 34-21-00. (HSI) of the
I The NAV 1 installation is connected with :
- the audio control box (option) - refer to 23-11-00,
- the DME installation (option) - refer to 34-55-00,
- the radio magnetic indication system (option) - refer to 34-25-00,
- the autopilot system (option) - refer to 22-12-00. The system is electrically supplied by "BUS 1" bar. -
I 2. LOCATION (Figures 1, 2 and 3)
COMPONENT QTY AREA ACCESS DOOR REFERENCE
A51 VHF NAV / COMM transceiver 1 251C / 34-50-00
E33 VOR / LOC antenna 1 310 311 or 313 34-51-00
E34 GS antenna (option or standard) 1 310 311 or 313 34-51-00
A59 VOR signal separator (option) 1 251C / 34-51-00
A60 GS signal separator (option) 1 251 C / 34-51-00
Course deviation indicator (option) 1 251 L / 34-51-00
A95 VOR / LOC converter (option) 1 230 Under pilot's seat 34-51-00
Circuit breaker :
- "COM / NAV 1" 1 230 232L WM
3. DESCRIPTION
A. A51 VHF NAV/COMM. transceiver (Figure 4)
The VHF NAV/COMM. transceiver is designed for the reception of navigation and guidance signals within a frequency range from 108.00 to 117.95 MHz and as an option for the reception of Glide Slope signals within a frequency range from 329.15 to 335.00 MHz. It provides the indicator(s) with NAV/LOC or NAV/ILS information.
Aircraft with KX 155A
All the controls, necessary for equipment operation in navigation mode as well as display, are located on the R.H. section of front panel. It includes :
- the NAV digital display (1) subdivided in two windows. The left window always displays the active frequency and the right "STBY" window displays the standby frequency or, according to the selected mode, navigation information,
- two concentric knobs used to select the active frequency, the standby frequency or data entry according to the selected mode,
- the "<-->" pushbutton for NAV frequency transfer, which enables the frequency displayed in the active frequency window to flip-flop with the frequency displayed in the"STBY" window and vice-versa. When pushed in more than two seconds, it also enables the active frequency to be directly controlled via the concentric knobs (if you press momentarily the pushbutton, the active and standby frequency display mode is reactivated),
- the "MODE" pushbutton used to select the CDI, the BEARING or RADIAL mode,
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本文链接地址：TB20 MAINTENANCE MANUAL 34 导航 TB20飞机维护手册 1(82)
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