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SUPPLEMENT NUMBER: SU-10073-0019-2




TO




PUBLICATION NUMBER: 10073-0020A




MARCH 1983




RF COMMUNICATIONS




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PPLEMENT NUMBER: SU-10073-0019-2




TO




PUBLICATION NUMBER: 10073-0020A




MARCH 1983




Copyright 0 1983
By Harris Corporation
All Rights Reserved




HARRIS CORPORATION RF COMMUNICATIONS DIVISION
1680 University Avenue Rochester, New York 14610 U.S.A.
Ph 716-244-5830 Cable RFCOM Rochester, NY TELEX 978464
m HARRIS

RF COMMUNICATIONS




TABLE OF CONTENTS


Paragraph

1 Tuning
Technical
General
FilterSelectAssemblyA19A2
Functional Assemblies
Description. Characteristics.
Description. I and II (A2A4A4, A2A4A3)
1
2 1
3 1
3. 1 1
3. 2 3
3. 3 Troubleshooting
General
Assembly
General.
Prealignment
Maintenance.
Interconnect Information A 19 Schematic.
Performance Alignment.
Alignment Procedure. Procedure.
Check. ...
4
4 4
4. 1 4
4. 2 5
5 6
5. 1 6
5. 2 6
5. 3 6
5. 3. 1 Post
Variable
High
High
Low Alignment
Band
Band/LowBand
Band
Band Capacitor Adjustments
Adjustment
Adjustment Performance Adjustment. End (Initial (Tuning)
(Tuning)
(Initial Check. Check. Setup)
Setup) ...
7
5. 3. 2 10
5. 3. 3 10
5. 3. 4
5. 3. 5 12
5.. 3.16 12
5.' 4 12
6 Schematic
PartsLists Diagrams.
13
7 13




LIST OF FIGURES


Figure

RF-596-02 Preselector Module (A19 Assembly) Functional Block Diagram
Frontispiece
1 RF-596-02 Preselector Module Option (A 19 Assembly) , 2

2 Typical Response Curve for Cavity Filter. , 8

3 AlignmentTestSetupforAssemblyA19 , 8

4 High/low Band Cavity Coil Adjustment locations. , 9

5 RF-596-02 Preselector Assembly Module
Filter ModuleRear locations.
Panel Adjustments. , 11

6 19

7 Filter Select PWB, Component location Diagram ( 10024-2210) ... 19

8 Tuning Assembly I, Component location Diagram (10024-2229 Rev. A) , 20

9 Tuning Assembly II, Component location Diagram ( 10024-2339 Rev. A) , 20

10 Tuning
Filter
Interface Select PWB, PWB Component
Assemblies Schematic
land II, Schematic
location
Diagram. Diagram.
Diagram. , 21

11 23

12 25
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RF COMMUNICATIONS




LIST OF FIGURES (Cant.:


Figure Page

13 RF-596-02 Preselector Module (A 19 Assembly) Interconnect Schematic

RF-596-02
Diagram. Preselector Module Schematic Diagram. 27
14 29



LIST OF TABLES


Table Page

1 Filter Select Assemblies I and II Troubleshooting Aid . 5

2 Filter Select PWB A2A4A2 Frequency vs. Relay Operation 5

3 Tuning
Filter
Optimum
Preselector
Post
Tuning Alignment
Select Assembly Response PWB
Interface Test II
IAssembly Curve
PartsParts
Frequencies.
PWB List. List.
Assembly Parts
Characteristics. List. Parts List. ...
7

4 13

5 14

6 15

7 16

8 17

9 List of Manufacturer's Codes. I
18
m HARRIS

RF COMMUNICATIONS




NOTE

This supplement describes the RF-596-02 Preselector
Module, a microprocessor-controlled preselector which
improves the R F-590 Receiver's performance in strong
signal environments. This option consists of an R F-578
Preselector and the A 1 Interface PWB 10073-6400.
The A 1 Interface PWB 10073-6400 is used to convert
serial data from the RF-590 to parallel data for use with
the RF-578 Preselector or the 1920-1200 suboctave
filter. The RF-596-02 Preselector Module is the A 19
Assembly of the RF-590 Receiver.
m HARRIS
RF COMMUNICATIONS