Figure 1-3 Equipment Setup For High Power Verification - Keysight 8990B Service Manual

1 Performance Verification and Adjustments
High power verification
– The accuracy error measured in this verification includes a combination of
NOTE
– The maximum power is +20 dBm.
– The frequency range of the DUT may be wider than the coupler selected in
– The procedure below is only applicable for limited verification. For full
1 Connect the standard sensor (N8481A/N8487A) to the power meter's channel
2 The equipment setup is as shown below:
Low-pass filter
Figure 1-3
28
errors for linearity, calibration factor, and temperature compensation.
the test. More than one coupler may be required to cover the frequency range
of the DUT.
verification, you need to return the 8990B to Keysight.
A and the incident sensor (N8481A/N8487A) to the power meter's channel B.
Signal generator
Input port (P1)
Equipment setup for high power verification
Power amplifier
Incident sensor
Transmitted Port P2)
Standard
sensor
Coupled port (P3)
Keysight 8990B Service Guide