256 Chapter 2
Performance Verification Tests
30. Spurious Responses: Agilent E4401B and E4411B
Adapter, Type-N (m) to BNC (f)
Adapter, Type-N (m) to Type-N (m)
Adapter, SMA (f) to BNC (m)
Adapter, APC 3.5 (f) to APC 3.5 (f)
Additional Equipment for 75 Ω Input
Power sensor, 75 Ω
Adapter, mechanical, Type-N (m) 50 Ω, to Type-N (m), 75 Ω
Adapter, Type-N (m), to BNC (m), 75 Ω
Procedure
This performance test consists of two parts:
Part 1: Third Order Intermodulation Distortion
Part 2: Second Harmonic Distortion
Perform Part 1 before Part 2.
Part 1: Third Order Intermodulation Distortion
1. Zero and calibrate the power meter and RF power sensor in log mode
(power reads out in dBm), as described in the power meter operation
manual.
75 Ω Input only: Use a 75 Ω power sensor.
CAUTION Use only 75 Ω cables, connectors, or adapters on instruments with 75 Ω
connectors, or damage to the connectors will occur.
2. Connect the equipment as shown in Figure 2-45 with the output of
the directional bridge connected to the power sensor.
75 Ω Input only: Use the 75 Ω power sensor with the 50 Ω to 75 Ω
mechanical adapter.