Technical data

2-42 Chapter 2
Performance Tests
11. Receiver Input Impedance
11. Receiver Input Impedance
Perform this test to verify the return loss of each of the analyzer receiver inputs.
Analyzer warmup time: 30 minutes
Specifications
Required Equipment
Procedure
1. Connect the equipment as shown in Figure 2-18, with the following additions:
• If you are using the HP/Agilent 85044A, set the attenuation to 0 dB.
• If you are using the HP/Agilent 85046A or 85047A S-Parameter test set, connect the
test set interface cable to the analyzer and use test set port 1.
Frequency Range Receiver Input
Impedance
300 kHz–2 MHz ≥ 20 dB return loss
2 MHz–1.3 GHz ≥ 24 dB return loss
1.3 GHz–3 GHz ≥ 19 dB return loss
3 GHz–6 GHz
a
a. For analyzers with Option 006.
≥ 15 dB return loss
Description HP/Agilent Part or Model Number
Test set, 50 Ω 85044A/85046A/85047A
2-way power splitter, 50 Ω 11667A Option 001
Attenuator, 10 dB 8491A Option 010
Termination, 50 Ω part of cal kit 85032B
Calibration kit, 50 Ω, type-N 85032B
Adapter, APC-7 to Type-N (m) 11525A
RF cable set, 50 Ω, Type-N 11851B
RF cable, 50 Ω, 7mm part of 11857D