ANRITSU Model 68255B/68355B Date: __________________________

Serial Number __________________ Calibrated By: __________________________
682XXB/683XXB MM A-89
4-7 Preliminary Calibration
Procedure Step Step Completion
1. Internal DVM Calibration (calterm119)........................... ______________
2. Coarse Loop Pretune DAC Calibration (calterm 137) ................... ______________
3. Fine Loop Pretune DAC Calibration (calterm 136)..................... ______________
4. Sweep Time DAC Calibration (calterm 132) ........................ ______________
5. YIG Frequency Offset DAC Calibration (calterm 134) ................... ______________
6. YIG Frequency Linearizer DACs Calibration (calterm 127) ................ ______________
7. 100 MHz Reference Oscillator Calibration (calterm 130) ................. ______________
8. Ramp Center DAC Calibration (calterm 129) ....................... ______________
9. Sweep Width DAC Calibration (calterm 133) ....................... ______________
10. Center Frequency DAC Calibration (calterm 114) ..................... ______________
11. Store the Calibration Data ................................. ______________
4-8 Switched Filter Shaper Calibration
Log Amplifier Zero Calibration Step Completion
1. Log Amplifier Zero Calibration (calterm 115) ....................... ______________

Limiter DAC Adjustment (Model 68255B/68355B’s with Option 15B)

2. Limiter DAC Adjustment (calterm 145)........................... ______________
Shaper DAC Adjustment
2. Shaper DAC Adjustment (calterm 138) .......................... ______________
3. Store the Calibration Data ................................. ______________