Anritsu 682XXB, 683XXB - page 111

Table of Contents
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 (FIRMWARE
VERSION 1.01 TO 2.00) ..............4-23
Equipment Setup ................4-23
ALC Slope DAC Adjustment ..........4-24
ALC SLOPE CALIBRATION (FIRMWARE
VERSION 2.00 AND ABOVE) ...........4-27
Equipment Setup ................4-27
Chapter 4
Calibration