Agilent 432A Power Meters & 478A Sensors: Additional Information A
E4416A/E4417A Power Meters Service Guide A-129
Agilent 478A Sensors: Additional Information
The Voltage Reflection Coefficients (VRC) of the Agilent 478A sensor must be
known before attempting to perform the Output Standing Wave Ratio (SWR)
Test. The VRC values required for this test are as follows:
• Frequency 50 MHz, with the mount resistance of the Agilent 432A set to 200
(recorded as ).
• Frequency 50 MHz, with the mount resistance of the Agilent 432A set to 100
(recorded as ).
For reference only, typical values of these VRC values are as follows:
•
•
Using incorrect VRC values in the Output SWR calculations will introduce significant
errors.
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