Absolute Amplitude Accuracy Extended Frequency Performance Test

(M9393A Option FRX/FRZ)

Absolute Amplitude Accuracy is described as the amplitude accuracy versus frequency. The 3.6 GHz to 50 GHz path will be functionally tested as this parameter is nominally specified. The Extended Frequency version of this performance verification test will test the FRX/FRZ Aux2In configuration.

A source calibration measures the source output power at a given power level setting across the frequency range with a power meter. The source is then connected to the DUT and the source power is measured on the DUT. The amplitude accuracy is the difference between the power meter reading and the DUT reading.

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Required Test Equipment

Test Equipment

Recommended Models

Signal generator

PSG models
(see equipment list)

Power meter

N1914A1

Low power millimeter power sensor

8487D

Fixed attenuator, 20 dB

8490D Opt 020

Fixed attenuator, 30 dB
(used with the 8487D power sensor)

11708A

Frequency reference module

M9300A

Cable, power sensor

11730A

Cable, BNC (m) to BNC (m)

8120-2582

Cable, 2.4 mm (m) to 2.4 mm (m)

11500E

Adapter, 2.4 mm (m) to 2.4 mm (m)

11900A
  1. N1914A power meters with serial number prior to MY53040007 require Service Note N1914A-07 which fixes a power supply ground loop. The ground loop injects noise into the measurement circuits which can cause unstable measurements at low (-30 dBm) power levels.

Connections and Setup Procedures

Power sensor calibration

Source calibration

Absolute Amplitude Accuracy Extended Frequency measurement setup