Anritsu 682XXB, 683XXB Chapter 4 - Calibration

3-16 PULSE MODULATION TEST:RF ON/OFF RATIO 3-45
Test Setup ...................3-45
Test Procedure .................3-45
3-17 PHASE MODULATION TESTS...........3-48
Test Setup ...................3-48
FM Input Sensitivity Procedure.........3-48
Chapter 4 - Calibration
4-1 INTRODUCTION ...................4-3
4-2 RECOMMENDED TEST EQUIPMENT .......4-3
4-3 TEST RECORDS ...................4-3
4-4 CALIBRATION FOLLOWING SUBASSEMBLY
REPLACEMENT...................4-4
4-5 CONNECTOR AND KEY LABEL NOTATION . . . 4-4
4-6 INITIAL SETUP....................4-7
Interconnection .................4-7
PC Setup — Windows 3.1 ............4-8
PC Setup — Windows 95 ............4-10
4-7 PRELIMINARY CALIBRATION ..........4-13
Equipment Setup ................4-13
Calibration Steps ................4-14
4-8 SWITCHED FILTER SHAPER CALIBRATION ..4-17
Equipment Setup ................4-17
Log Amplifier Zero Calibration .........4-18
Limiter DAC Adjustment ............4-18
Shaper DAC Adjustment ............4-19
4-9 RF LEVEL CALIBRATION .............4-22
4-10 ALC SLOPE CALIBRATION ............4-23
Equipment Setup ................4-23
ALC Slope DAC Adjustment ..........4-24
4-11 ALC BANDWIDTH CALIBRATION ........4-31
Equipment Setup ................4-31
Bandwidth Calibration .............4-31
iv 682XXB/683XXB MM
Table of Contents (Continued)