400 SERIES MAINTENANCE MANUAL
Page v
P/N 190-00140-05
Rev. C
SECTION 5
ALIGNMENT, CALIBRATION, AND TESTING
Paragraph
Page
5.1
INTRODUCTION ................................................................................................. 5-1
5.2
RECOMMENDED TEST EQUIPMENT ............................................................... 5-1
5.3
TEST SETUP....................................................................................................... 5-3
5.4
STANDARD SIGNALS AND TEST LOADS......................................................... 5-3
5.4.1
VHF Com Transceiver ..................................................................................... 5-3
5.4.1.1
Standard Loads ............................................................................................... 5-3
5.4.1.2
Standard Signals ............................................................................................. 5-4
5.4.2
Glideslope ....................................................................................................... 5-4
5.4.2.1
Standard Loads ............................................................................................... 5-4
5.4.2.2
Standard Signals ............................................................................................. 5-4
5.4.3
NAV Receiver.................................................................................................. 5-5
5.4.3.1
Standard Loads ............................................................................................... 5-5
5.4.4
VOR Standard Signals .................................................................................... 5-6
5.4.4.1
Standard Test Signals ..................................................................................... 5-6
5.4.5
Localizer Standard Signals.............................................................................. 5-7
5.4.5.1
Standard Test Signals ..................................................................................... 5-7
5.5
ALIGNMENT ........................................................................................................ 5-9
5.6
CALIBRATION ..................................................................................................... 5-9
5.6.1
Com Setup Page Fields ................................................................................ 5-10
5.6.1.1
Com Frequency............................................................................................. 5-10
5.6.1.2
Frequency Spacing ....................................................................................... 5-10
5.6.1.3
SQ 250 .......................................................................................................... 5-10
5.6.1.4
SQ 833 .......................................................................................................... 5-10
5.6.1.5
Sidetone ........................................................................................................ 5-11
5.6.1.6
MIC Gain ....................................................................................................... 5-11
5.7
TEST PROCEDURES ....................................................................................... 5-12
5.7.1
Test Mode ..................................................................................................... 5-12
5.7.2
Com Testing .................................................................................................. 5-14
5.7.2.1
Power Input Check ........................................................................................ 5-14
5.7.2.2
RF Power Out................................................................................................ 5-15
5.7.2.3
Frequency Stability and Tolerance................................................................ 5-16
5.7.2.4
Modulation Capability Test ............................................................................ 5-16
5.7.2.5
Carrier Noise Level........................................................................................ 5-17
5.7.2.6
Demodulated Audio Distortion....................................................................... 5-17
5.7.2.7
Demodulated Audio Response...................................................................... 5-17
Содержание GNC 420
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