R **ON A/C 051-099, 106-149, 201-299, 301-399, 401-499,
(4) Digital outputs This table contains all the output parameters in the digital form. They are sorted as per the numerical order of their output label. The following table gives :
-EQ.SYS.LAB.SDI: (SDAC,FWC,DMC...) output label for which the parameter is available
-PARAMETER DEFINITION: parameter name
-WORD RANGE OPER RANGE RESOLUTION ACCURACY: measurement range. Maximum value transmitted. When the digital value changes, the change step is equal to the accuracy
-UNIT: unit in which the digital value is transmitted
-SIG BIT: indicates whether a sign bit is available
-BITS: number of bits used by the parameter in the label
-XMSN/INTV: output transmission interval. The refresh rate is given in milliseconds
-CODE :
1EFF : ALL 1 34-55-00Page 38 1 1 Aug 01/05 1 1 1CES 1
BNR: binary data word
BCD: binary coded decimal data word
ISO: data word coded in ISO5 code
DIS: discrete data word
HEX: hexadecimal coded
HYB: mixed code
-ALPHA CODE: indicates the parameter mnemonic code
-SOURCE ORIGIN: parameter source computer or system.
-------------------------------------------------------------------------------| PARAMETER LIST PARAMETER CHARACTERISTICS (NUMERIC) | -------------------------------------------------------------------------------|EQ.SYS.LAB.SDI|PARAMETER | WORD RANGE |UNIT|SIG |BITS|XMSN|CODE|ALPHA|SOURCE | | |DEFINITION| OPER RANGE | |BIT | |INTV| |CODE |ORIGIN | | |(*=REMARK)| RESOLUTION | | | | | | |BUS No.| | |(X=NOTE) | ACCURACY | | | | | | |ATA REF| | | | | | | | | | |CONV | -------------------------------------------------------------------------------| .034. |VOR 1 FREQ| 108/117.95 |MHZ | | 4 |2560|BCD | | | | | | 0.01 | | | | | | | | | |VOR 2 FREQ| | | | | | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | .100. |SEL | 180 |DEG | | 12 | |BNR | | | | |COURSE 1 | 0.0439 | | | | | | | | | | | | | | | | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | .222. |OMNI | 180 |DEG | | 12 | |HYB | | | | |BEARING | 0.0439 | | | | | | | | | | | | | | | | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | .242. |VOR 1 | | | | | |HYB | | | | |IDENT | | | | | | | | | | |WORD 1 | | | | | | | | | | | | | | | | | | | | | |VOR 2 | | | | | | | | | | |IDENT | | | | | | | | | | |WORD 1 | | | | | | | | | |--------------|----------|------------|----|----|----|----|----|-----|-------| | .244. |VOR 1 | | | | | |HYB | | | | |IDENT | | | | | | | | | | |WORD 2 | | | | | | | | | | | | | | | | | | | | | |VOR 2 | | | | | | | | | | |IDENT | | | | | | | | | | |WORD 2 | | | | | | | | | -------------------------------------------------------------------------------
R 1EFF : 051-099, 106-149, 201-299, 301-399, 1 34-55-00Page 39 1401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C ALL
B. Antennas
(1)
MARKER antenna (Ref. Fig. 009) A low-drag, lightweight antenna, located in the longitudinal axis of the aircraft below the fuselage, is provided for the reception of the 75 MHz marker signals. The dielectric, foam-filled, white polyester fiberglass housing, fitted with a metal leading edge, protects against moisture and erosion. The antenna is horizontally polarized, has an impedance of 50 ohms.
(2)
VOR antenna (Ref. Fig. 010) The VOR antenna is an airborne antenna sunk into the fin and used to receive VOR signals in the 108-118 MHz range. It is a small-sized half-wave folded dipole type. The antenna has two independent RF connectors used to feed two items of equipment. The antenna is horizontally polarized, has an impedance of 50 ohms.
6. Operation
_________
**ON A/C 001-049, 051-099, 101-105, 151-199,
(Ref. Fig. 002)
R **ON A/C 106-149, 201-299, 301-399, 401-499,
(Ref. Fig. 002A)
**ON A/C ALL
A. Control
(1) VOR system
-Each VOR/MKR receiver is connected to one RMP. The VOR/MKR receiver 1 is connected to the RMP 1, (the VOR/MKR receiver 2 to the RMP 2). The RMP 1 also receives the management bus from the FMGC 1 (the RMP 2 from the FMGC 2).
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MARKER - Antenna Figure 009
R 1EFF : 1 1 1CES ALL 1 111 34-55-00 Page 41 Feb 01/05
VOR - Antenna Figure 010
R 1EFF : 1 1 1CES ALL 1 111 34-55-00 Page 42 Feb 01/05
-In normal operation, the FMGC 1(2) tunes the VOR/MKR receiver 1(2) either automatically or manually by means of the MCDU 1(2). In this case the RMP 1(2) operates as a relay which sends the frequency and course information from the FMGC 1(2) to the VOR/MKR receiver 1(2). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM NAVIGATION 导航4(167)
