Freq Resp Very Low Freq Preamp Off Performance Test

Frequency Response (aka. Flatness) is defined as the amplitude deviation from the reference amplitude at 50 MHz. The complete analyzer Frequency Response is measured with the following tests:

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. This technique reduces the measurement uncertainty to verify the frequency response specification for the 9 kHz to 50 MHz range. The buried sensor calibration is valid for four hours.

Required Test Equipment

Test Equipment

Recommended Model Number1

Function generator

33622A

Power meter

N1914A

RF power sensor

  • 2 required

E9304A Option H20

Power splitter

11667B

Cable, BNC (m) to SMB (f)

8121-2063

Cable, BNC (m) to BNC (m)

8120-2582

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

1250-1200

Adapter, 3.5 mm (m) to 3.5 mm (m)2

83059A

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

1250-1744
  1. Refer to the main equipment list for a list of alternative models (if available).
  2. The 3.5 mm (m) to 3.5 mm (m) adapter between the power splitter and the DUT is critical in this test. Proper connector care and torqueing practices must be followed in order to insure optimal performance.

Connection Setups

Power Meter Calibration

Splitter Characterization Setup

 

Freq Resp Very Low Freq Preamp Off Test Setup