Manual - 8500A Series Peak Power Meter - Giga-tronics

Preface
List of Figures
Figure 2-1 Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Figure 2-2 PCB Voltage Selector and Fuse Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Figure 2-3 VDE Voltage Selector and Fuse Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Figure 2-4 Model 8502A Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Figure 2-5 Model 8502A Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Figure 2-6 Typical Single Channel Peak Power Display . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Figure 2-7 Typical Initial Graph Mode Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Figure 2-8 Typical Cursor Sub-Mode Digital Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-24
Figure 2-9 Typical Pulse Sub-Mode Digital Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-26
Figure 2-10 Typical Marker Sub-Mode Digital Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Figure 2-11 Typical Signal Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Figure 2-12 Typical Peak Power Ratio Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Figure 2-13 Typical Good & Bad Cursor Delay Settings . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Figure 2-14 Detector to a High-Power Coupler Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Figure 2-15 Detector to High Power Attenuator Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-38
Figure 2-16 Typical Pulse with -10 dBm Trigger Level . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-40
Figure 2-17 Typical Pulsed Swept Measurement System . . . . . . . . . . . . . . . . . . . . . . . . 2-42
Figure 4-1 Series 8500A System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Figure 4-2 GPIB/Cal Control (A3) Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
Figure 4-3 Voltage to Current Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Figure 4-4 CPU (A4) Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Figure 4-5 Digital Delay (A5) Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
Figure 4-6 Timing Diagram - Delay Board Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14
Figure 4-7 Analog PC (A6/A7) Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Figure 4-8 Front Panel Interface (A8) Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
Figure 4-9 Detector Calibrator (A12) Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Figure 5-1 Power Linearity Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Figure 5-2 Delay Accuracy Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Figure 5-3 Model 8501A/8502A Calibration Components. . . . . . . . . . . . . . . . . . . . . . . . 5-9
Figure 5-4 Typical PPM Digital Delay Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16
Figure 5-5 Typical PPM Display with A5R30 at Max cw . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Figure 5-6 Typical PPM Display w/Smooth Rise Time . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Figure 5-7 Typical PPM Sync Output Scope Display . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
Figure D-1 Op-Amp Equivalent of Pre-Amp Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4
Figure D-2 Pre-Amplifier/Line Driver Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5
Figure D-3 PROM PC Assembly Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6
Figure D-4 Detector Disassembly and Assembly Details . . . . . . . . . . . . . . . . . . . . . . . . D-10
Manual No. 20790, Rev C, November 1998
vii
Superceded by Revision D, March 2009