Agilent Technologies 54701A, User'S And Service Manual

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45
Chapter 3: Service
Calibration Testing Procedures
To test bandwidth
This test checks the bandwidth of the probe. A high-frequency signal
generator and two power meters are used to set the input and measure the
output of the probe.
Specification: down less than 3 dB, dc to 2.5 GHz
1
Zero and calibrate the power meters with the power sensors.
2
Connect the equipment as in the figure on the next page.
3
Connect the probe power input connector to the 1143A or oscilloscope
probe power.
4
Set the probe offset to zero.
If using an 1143A power module, set Offset controls to Local and Zero.
If using an oscilloscope for probe power, use the channel menu to set the
offset to 0.0 V.
5
Set the signal generator for 50 MHz at 0.0 dBm.
6
Set the power meter calibration factors to the 50 MHz value on the
power sensors.
Equipment Required
Equipment Critical Specifications
Recommended
Model/Part
Signal Generator 50 MHz to 2.5 GHz 8663A
Power Meters (2)
or one Dual-
Channel 50 MHz to 2.5 GHz,
±3% accuracy 436A (2),
437A (2), or
438A (1)
Power Sensor (2) 50 MHz to 2.5 GHz, 300 mW 8482A
Power Splitter dc to 2.5 GHz,
≤
0.2 dB output tracking,
Type-N
11667A
Power Supply Power and control for probe under test 1143A
Adapter/termination N(f)-to-probe, 50
Ω
11880A
Adapter N(f-f), 50
Ω
1250-0772
Adapter N(m-m), 50
Ω
1250-0078