System Description

4-6 kW UHF Translator Table of Contents

837B, Rev. 0 iv February 24, 2003

TABLE OF CONTENTS (continued)

Section # Page #

5.4 UHF Amplifier Trays, LDMOS ...............................................................5-13

5.4.1 Variable Gain/Phase Board .........................................................5-13

5.4.2 1-Watt UHF Amplifier Board ........................................................5-13

5.4.3 UHF Filter .................................................................................5-14

5.4.4 40 Watt Amplifier Module ...........................................................5-14

5.4.5 Coupler Board Assembly.............................................................5-14

5.4.6 LDMOS Amplifier Module ............................................................5-14

5.4.7 4-Way Splitter Assembly ............................................................5-14

5.4.8 LDMOS Amplifier Modules...........................................................5-14

5.4.9 4-Way Combiner Assembly .........................................................5-14

5.4.10 Circulator ...............................................................................5-14

5.4.11 Dual Peak Detector Board, Single Supply ....................................5-14

5.4.12 Amplifier Protection Board ........................................................5-14

5.4.13 Amplifier Control Board ............................................................5-14

5.4.14 +32V/2000W Switching Power Supply........................................5-14

5.4.15 Calibration of Output Power and VSWR Cutback of Tray................5-15

5.5 Phase and Gain Adjustment of the UHF Amplifier Trays...........................5-15

5.6 Calibration of Side A & B Amplifier Arrays Forward Output Power .............5-16

5.7 Calibration of Side A & B Amplifier Arrays Reflected Output Power ...........5-17

5.8 Phase and Gain Adjustment for the entire Amplifier Array .......................5-17

5.9 Calibration of the Forward Output Power of the Translator ......................5-18

5.10 Calibration of the Reflected Output Power of the Translator ....................5-18

5.11 Calibration of the Reject Output Power of the Translator ........................5-18

5.12 IF Phase Corrector Adjustment for the Translator..................................5-19

5.13 Linearity Corrector Adjustment of the Translator...................................5-20

APPENDICES

APPENDIX A SAMPLE LOG REPORT SHEET

APPENDIX B TYPICAL OPERATIONAL READINGS

APPENDIX C BLOCK DIAGRAM / INTERCONNECT DRAWINGS

APPENDIX D SUBASSEMBLY DRAWINGS

APPENDIX E 837B SYSTEM SPECIFICATIONS