Keysight Technologies 8481A Operating And Service Manual

Contents

Keysight Technologies 8481A Operating And Service Manual Manual pdf 9 page image

Keysight 8480 Series Operating and Service Manual 9List of FiguresFigure 1-1 Example serial number . . . . . . . . . . . . . . . . . . . . . . . . .14Figure 1-2 8480 Series power sensor simplified block diagram . .16Figure 1-3 Mechanical adapter (8483A Only) . . . . . . . . . . . . . . . .19Figure 1-4 8485A, 8485A-033, 8485D, 8485D-033 sensoraccessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20Figure 1-5 8487A power sensor with adapter . . . . . . . . . . . . . . . .21Figure 1-6 Typical CAL FACTOR and SWR vs. Frequency . . . . . .31Figure 1-7 Typical CAL FACTOR and SWR vs. Frequency (8485D) .32Figure 1-8 Typical CAL FACTOR and SWR vs. Frequency (8487D) .33Figure 1-9 Typical influence of temperature on sensitivity . . . . . .36Figure 2-1 Zero set performance verification equipment setup . .45Figure 2-2 DUT to power meter connection . . . . . . . . . . . . . . . . .45Figure 2-3 Power linearity performance verification equipmentsetup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47Figure 2-4 Illustrated major parts breakdown . . . . . . . . . . . . . . . .51Figure 3-1 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . .58Figure 3-2 Example of an acceptable waveform . . . . . . . . . . . . . .67Figure 3-3 Example of an unacceptable waveform . . . . . . . . . . . .68Figure 3-4 Removing the power sensor’s cover . . . . . . . . . . . . . .70Figure 3-5 Power sensor hardware locations . . . . . . . . . . . . . . . .71Figure A-1 Remove screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75Figure A-2 Remove the power meter handle . . . . . . . . . . . . . . . . .76Figure A-3 Remove the power meter cover . . . . . . . . . . . . . . . . . .76Figure A-4 Power meter with its cover removed . . . . . . . . . . . . . .77Figure A-5 Remove three hold plugs . . . . . . . . . . . . . . . . . . . . . . .77Figure A-6 Holes in the rear panel . . . . . . . . . . . . . . . . . . . . . . . . .78Figure A-7 Solder each wire onto the screw-fit BNC femaleconnectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78Figure A-8 Fit the three BNC connectors into the three holes in therear panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79Figure A-9 Location to solder each wire . . . . . . . . . . . . . . . . . . . .80Figure A-10 Different view of the modified Measurement PCB . . .80