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5 - Sealant bead 6 - Antenna 7 - Gasket 8 - Area to be bonded DME antenna - Removal / Installation Figure 201 AAAA Validity : OPTION 34-55 03Page 203 (BA) NOV 01 PAGE INTENTIONALLY LEFT BLANK WA Validity : OPTION 34-55 03Page 204 (BA) FEB 00 GLOBAL POSITIONING SYSTEM (GPS) DESCRIPTION AND OPERATION 1. GENERAL (Figure 1) The GPS is a system of radio-navigation by satellites which allows to solve the problem of an aircraft location anywhere (tridimensional positioning : latitude, longitude, altitude). The optional system consists of : - an A78 GPS receiver, - an E48 GPS antenna, - a J89 "data loader" jack, - a removable database cartridge (mounted at the back of the GPS receiver). The GPS also uses components of M6 advisory panel - refer to 31-50-01 : - an "MSG - WRN - WPT" annunciator (in conjunction with a printed circuit board), - or "WPT - WRN" and "MSG" annunciators. The GPS also uses the "RADIO MASTER" switch. The GPS gets altitude coding information from the encoding altimeter - refer to 34-11-00. The GPS sends an altitude - alert audio signal to the audio control box - refer to 23-11-00. The GPS also uses : - an interface kit used to load the database from a personal computer via the data loader jack, - the blower of the radio air cooling system. VHF transmissions may affect GPS signal reception. Filters are inserted in line with each VHF transmission line. The GPS system is electrically supplied by "BUS 3" bar via the "GPS" circuit breaker. AEAE Validity : KLN 90 Stand alone 34-57 00 (BE) Page 1 FEB 00 ALTIMETRE CODEUR ENCODING ALTIMETER COMPONENT CITY AREA ACCESS DOOR REFERENCE 3. OPERATION 中国通航网 www.ga.cn 通航翻译 www.aviation.cn 本文链接地址：TB20 MAINTENANCE MANUAL 34 导航 TB20飞机维护手册 2(56) |
