Noise Floor

This topic page applies to all supported ENA models in both the Factory Recommended and the Normal Variant test plans.

This test checks the noise floor for all the receiver ports of the ENA. The noise floor is tested by performing load-ended absolute measurements with the test ports terminated with "Load" devices, 16 times with segment sweep points for specified frequency ranges. The measurement data is calculated from the RMS deviation value from the 16 measurement data for each sweep frequency point.

Required Test Equipment

Noise Floor

This test checks the noise floor for all the receiver ports of the ENA. The noise floor is tested by performing load-ended absolute measurements with the test ports terminated with "Load" devices, 16 times with segment sweep points for specified frequency ranges. The measurement data is calculated from the RMS deviation value from the 16 measurement data for each sweep frequency point.

Required Test Equipment

Test Equipment
(DSG)1

Recommended Model Number2

E5071C > 8.5 GHz

E5071C ≤ 8.5 GHz

E5072A
E5080A

Power meter
(PowerMeter 1)

N1914A

X

X

X

Power sensor 1
(PowerSensor RF 1)

E9304A Option H18

 

X

X

Power sensor 2
(PowerSensor RF 2)

N8482A

X

 

 

Power sensor 3
(PowerSensor MW 1)

E4413A

X

 

 

Load, 3.5 mm (m)

  • 2 or 4 required3

909D

X

 

 

Load, Type-N (m)

  • 2 or 4 required3

85032-60017

 

X

X

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

8121-1834

X

X

 

Cable, Type-N

8120-8862

    

X

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

  • 2 or 4 required3

85027-60005

X

 

 

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

  • 2 required

1250-2879

X

 

 

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

1250-1472

 

 

X
  1. The DSG (Device Substitution Group) is listed below the equipment description, if applicable. These devices are required to be mapped in TME to execute a test. DSGs require either GPIB communication or are important for dynamic measurement uncertainty calculations. N/A refers to required equipment that is not mapped as DSGs in TME.
  2. Refer to the main Required Test Equipment for a list of alternative models.

  3. Two required for 2-port ENAs; four required for 4-port ENAs.

Connection Setups
  • Due to the complexity of the ENA family of analyzers, only a single representative model will be shown.
  • Some images may not apply to all models.

Port 2 Source Calibration
E5071C > 8.5 GHz — Low Band

 

Port 2 Source Calibration — High Band

Source Calibration
Port 2 to Port 1

 

Port 1 Source Calibration
E5071C > 8.5 GHz — Low Band

 

Port 1 Source Calibration — High Band

Source Calibration
Port 1 to Port 2

 

Source Calibration
Port 1 to Port 3

 

Source Calibration
Port 1 to Port 4

 

Noise Floor Measurement