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TM-32-5985-200-15 Antenna System QRC-280 (A) Manual		Next
TABLE OF CONTENTS (Cont)

CE-1008
TABLE OF CONTENTS
Page
SECTION I.
GENERAL DESCRIPTION
1.
GENERAL ...............................................................................................................................................
1-1
A.
Purpose and Scope of the Manual ................................................................................................
1-1
B.
Purpose of the Equipment ............................................................................................................
1-1
C.
Equipment Supplied......................................................................................................................
1-1
(1)  Antenna System ..................................................................................................................
1-3
(2)  Antenna Pedestal ................................................................................................................
1-4
(3)  Elevation Drive Assembly ...................................................................................................
1-4
(4)  Type I Radome-Platform .....................................................................................................
1-4
(5)  Antenna Control Power Supply ............................................................................................
1-5
(6)  Antenna Position Control Indicator ......................................................................................
1-5
(7)  Scope..................................................................................................................................
1-5
D.
Special Tools and Test Equipment................................................................................................
1-6
E.
Condensed Data ...........................................................................................................................
1-6
(1)  Equipment Specifications and Operating Characteristics .....................................................
1-6
(2)  Special Design Features......................................................................................................
1-6
2.
SYSTEM THEORY OF OPERATION ......................................................................................................
1-10
A.
General ........................................................................................................................................
1-10
B.
Antenna Positioning and Drive Circuits .........................................................................................
1-12
(1)  Antenna System Drive Circuits ............................................................................................
1-12
(2)  Manual Mode of Operation ..................................................................................................
1-12
(3)  Slave Mode of Operation.....................................................................................................
1-15
(4)  Scan Mode of Operation......................................................................................................
1-16
C.
Cable-Wrap Circuits ..................................................................................................................... .
1-19
D.
Polarization Diversity Control Circuits ..........................................................................................
1-21
E.
Electromechanical Linear Actuator (Beam Broadener) and Indicator Circuits ................................
1-21
F.
Radome-Platform Circuits.............................................................................................................
1-27
(1)  Blower and Control Circuits .................................................................................................
1-27
(2)  Pressure Safety Switches and Indicator Circuits ..................................................................
1-27
(3)  Deicer Circuits.....................................................................................................................
1-31
(4)  Utility Circuits ......................................................................................................................
1-31
(5)  Intercom Circuit ...................................................................................................................
1-31
i

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