Spectrum Analyzer Adjustment

This adjustment applies to the following models:

• N9950A/51A/52A

• N9960A/61A/62A

The Spectrum Analyzer Adjustment consists of five different adjustments that are run sequentially as the Spectrum Analyzer Adjustment. The adjustment uses two different equipment setups. Part one of the procedure will use a calibrated PNA-X for frequencies above 15 MHz. The second part of the adjustment will use a function generator for frequencies from 9 kHz to 15 MHz.

Part One: Frequencies Above 15 MHz

This part of the Spectrum Analyzer Adjustment will run the following adjustments using a calibrated network analyzer:

1. Absolute Amplitude
2. Frequency Response (Band 2 and greater)
3. Attenuator Slope (Band 2 and greater)

4. IF Frequency Response (Band 2 and greater)

Click here for equipment setup details.

Required Test Equipment

The network analyzer used in this adjustment must be calibrated prior to running the adjustment. The calibration will need to be repeated once every three days or if the connectors or cables have been disturbed. If it's been within the three day time frame and the connectors and cables have not been disturbed, then the network analyzer calibration is not necessary and you may proceed with the adjustment. For a list of required equipment and calibration instructions to perform the network analyzer calibration, go to the Network Analyzer Calibration Procedure topic page.

Test Equipment	Recommended Model Number (see main equipment list for alternative models)
Network Analyzer	N5247B with options: Option 425: 4-port, configurable test set, second source, attenuators, combiner, mechanical switches, bias tees, low frequency extension425 560: R-channel calibration option S93080B: frequency offset
Cable, 1.85 mm (f) to 1.85 mm (m) 2 required	JUNFLON J12J102905-00-2
Cable, BNC (m) to BNC (m)	8120-2582
Adapter, 2.4 mm (f) to 2.4 mm (f) 2 required	11900B

 

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.

Spectrum Analyzer Adjustment setup for frequencies above 15 MHz

Part Two: Frequencies 9 kHz to 15 MHz

This part of the Spectrum Analyzer Adjustment will run the following adjustments using a function generator:

1. LO Feedthru
2. Frequency Response (Band 1 only)
3. Attenuator Slope (Band 1 only)

4. IF Frequency Response (Band 1 only)

Click here for equipment setup details:

Required Test Equipment

Test Equipment	Recommended Model Number (see main equipment list for alternative models)
Function Generator	33622A
Power Meter	N1914A
Power Sensor	E9304A Opt H20
Power Splitter	11667B
Power Sensor Cable	11730A
BNC Cable	8120-2582
Coaxial Cable	11500E
Adapter, 3.5 mm (m) to Type-N (m)	1250-1743

 

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.

Power Sensor Calibration

Spectrum Analyzer Adjustment setup for frequencies 9 kHz to 15 MHz