Total Abs Amp Accy Low Freq Test

This test applies to the following models:

In this test a signal is split and applied to the DUT and to a power meter. The absolute amplitude accuracy is the difference between the power meter reading and the FieldFox reading. A "buried power sensor" technique is used to characterize the tracking error of a power splitter in order to avoid the relatively large specified tracking error. The buried sensor calibration essentially trades power meter errors for splitter tracking errors.

This test checks frequencies below 9 GHz

Test type:

performance

Related specification:

Total Absolute Amplitude Accuracy

Related adjustment:

Frequency Response

Required Test Equipment

Test Equipment

Recommended Model Number
(see main equipment list for alternative models)

Signal Generator #1

E8257D with options:

  • 550
  • 1E1
  • 1EA or 1EU

  • UNR or UNX or UNY

Power Meter

N1914A

Power Sensor
(2 required)

E9304A Opt. H20

Power Splitter, Type-N

11667A

Cable, BNC

8120-2582

Cable, 3.5 mm (m) to 3.5 mm (m)

11500E

Adapter, Type-N (m) to Type-N (m)

1250-1475

Adapter, Type-N (m) to 3.5 mm (m)

1250-1744

Adapter, 3.5 mm (f) to 3.5 mm (f)

  • for 3.5 mm PSG

83059B

Adapter, 2.4 mm (f) to 3.5 mm (f)

  • for 2.4 mm PSG

11901B

 

Connection Setups

The following notes apply to illustrations in the FieldFox Help:

  • Only a single representative model will be shown.
  • Some illustrations may differ than those in TME.

  • For procedures that apply to multiple ports, illustrations will show the setup on only one test port.

Reference Power Sensor Calibration, Channel A

Buried Power Sensor Calibration, Channel B

Splitter Characterization

Total Abs Amp Accy Low Freq Test Setup