Table of Contents
vii
7.2.4.
Azimuth & Elevation Drive ......................................................................................................................................................... 7-2
7.2.5.
Test Tracking ..................................................................................................................................................................................... 7-2
7.2.6.
Visual Inspection - Radome & Pedestal .......................................................................................................................... 7-2
7.2.7.
Mechanical Checks ........................................................................................................................................................................ 7-2
7.2.8.
Check Balance ................................................................................................................................................................................... 7-2
7.2.9.
Observe Antenna Initialization ............................................................................................................................................... 7-2
7.3.
400MH
Z
M
ODEM
C
ONFIGURATION
.............................................................................................................................................................. 7-3
7.4.
400
MH
Z
LED
INDICATORS
............................................................................................................................................................................. 7-4
7.5.
400
MH
Z
M
ODEM
S
IGNALS
............................................................................................................................................................................. 7-4
7.5.1.
Pedestal M&C .................................................................................................................................................................................... 7-4
7.5.2.
Radio M&C .......................................................................................................................................................................................... 7-5
7.5.3.
Channel Identification ................................................................................................................................................................. 7-5
7.6.
T
ROUBLESHOOTING
400MH
Z
M
ODEM
C
OMMUNICATION
F
AULTS
..................................................................................................... 7-6
7.6.1.
400MHz Modem Queries: .......................................................................................................................................................... 7-6
7.6.2.
Modem Query Methods .............................................................................................................................................................. 7-6
7.6.3.
Isolating a 400 MHz Modem Fault Procedure: ............................................................................................................. 7-8
7.7.
T
ROUBLESHOOTING
........................................................................................................................................................................................... 7-11
7.7.1.
Theory Of Stabilization Operation ..................................................................................................................................... 7-11
7.7.2.
Series 97B-21/00B-21 Dual C-Band OR Quad Ku-Band TVRO RF Flow ..................................................... 7-12
7.7.3.
Antenna Initialization (Series 97B & Series 00 ) ........................................................................................................ 7-12
7.7.4.
Troubleshooting using DacRemP ....................................................................................................................................... 7-13
7.7.5.
Antenna Loop Error Monitoring .......................................................................................................................................... 7-14
7.7.6.
Reference Sensor Monitoring .............................................................................................................................................. 7-15
7.7.7.
Open Loop Rate Sensor Monitoring ................................................................................................................................. 7-17
7.7.8.
Open Loop Motor Test .............................................................................................................................................................. 7-18
7.7.9.
To Disable/Enable DishScan .................................................................................................................................................. 7-18
7.7.10.
Satellite Reference Mode ........................................................................................................................................................ 7-18
7.7.11.
To Read/Decode an ACU Error Code 0008 (Pedestal Function Error): ....................................................... 7-19
7.7.12.
Remote GPS LAT/LON Position: ........................................................................................................................................... 7-21
7.8.
M
AINTENANCE
................................................................................................................................................................................................... 7-22
7.8.1.
Balancing the Antenna ............................................................................................................................................................. 7-22
7.8.2.
To Adjust Tilt: .................................................................................................................................................................................. 7-23
7.8.3.
To Reset/Reinitialize the Antenna: ..................................................................................................................................... 7-25
7.9.
P
EDESTAL
C
ONTROL
U
NIT
C
ONFIGURATION
(
XX
97B
&
XX
00) ............................................................................................................ 7-25
7.9.1.
To configure the PCU; ............................................................................................................................................................... 7-25
7.9.2.
MODEL CONFIGURATION NUMBERS ............................................................................................................................ 7-25
7.10.
A
NTENNA
S
TOWING
P
ROCEDURE
.................................................................................................................................................................. 7-26
8.
9497B-21 TECHNICAL SPECIFICATIONS .................................................................................................................................. 8-1
8.1.
9497
A
NTENNA
R
EFLECTOR
............................................................................................................................................................................. 8-1
8.2.
F
EED
A
SSEMBLIES
................................................................................................................................................................................................. 8-1
8.2.1.
TVRO-21 Dual C-Band / Quad Ku-Band Feed Assembly .......................................................................................... 8-1
8.3.
S
TABILIZED
A
NTENNA
P
EDESTAL
A
SSEMBLY
................................................................................................................................................ 8-2
8.4.
P
EDESTAL
C
ONTROL
U
NIT
(PCU) .................................................................................................................................................................... 8-2
8.5.
400
MH
Z
B
ASE
&
P
EDESTAL
U
NLIMITED
A
ZIMUTH
M
ODEMS
(3
C
HANNEL
) .................................................................................... 8-3
8.6.
144”
R
ADOME
A
SSEMBLY
................................................................................................................................................................................. 8-3
8.7.
E
NVIRONMENTAL
C
ONDITIONS
(ADE) ........................................................................................................................................................... 8-4
8.8.
C
ABLES
.................................................................................................................................................................................................................... 8-4
8.8.1.
Antenna Control Cable (Provided from
ACU-MUX)
8-4
Summary of Contents for 9497B-21
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