3Adjustments
78 Keysight E4416A/E4417A Power Meters Service Guide
For this adjustment the following mathematical assumptions are made:
Equation 1:
can be manipulated to give the following:
Equation 2:
To ensure maximum accuracy in re-adjusting the power reference oscillator
output, this procedure provides step-by-step instructions for using Keysight test
instruments of known capability. Signal acquisition criteria may vary if
alternative test instruments are used. In such cases refer to the manufacturer's
guidelines for further information.
The power meter may be returned to the nearest Keysight Technologies office to
have the power reference oscillator checked and/or adjusted.
Figure 3-3 Adjustment Setup
Power Meter
V
RF
V
comp
Thermistor
mount
Power ref
Digital Voltmeter
+ input
Keysight 432A
Power Meter
- input
P
meas
2V
comp
V
1
V
0
–()V
0
2
V
1
2
–+
4R CalibrationFactor()
---------------------- ----------------------------------=
V
1
V
comp
V
0
V
comp
2
10()
3–
4R()CalibrationFactor()––+=
To Next Page
Loading...
Need help?
General
