Agilent Technologies 8960 User manual

To perform the 8960 Operational Verification tests requires that the 10 MHz

timebases be connected together. Connect the 10 MHz Reference Output of the 8960

to the 10 MHz Ref In of the ESG E4433B. Connect the 10 MHz Ref Out of the ESG

E4433B to the 10 MHz Ref In of the VSA E4406A with BNC cables.

The RF In/Out Connector of the 8960 will be alternately connected to either the RF

Out of the ESG E4433B (RX Test) or the RF Input of the VSA E4406A (TX Test) with

a low loss Type-N cable.

Agilent Technologies 8960

Operational Verification (Manual

Procedure)

Test Equipment Setup

Use the following procedure to manually test an 8960 that is running an

E1960A GSM Test Application. A test record is included to assist in

collecting test data. Make a copy of the test record to use.

The test equipment required for 8960 Operational Verification is:

ESG E4433B Digital Signal Generator

VSA E4406A Transmitter Tester

Manual

Verification

10 MHz

Ref In

10 MHz

Ref Out

10 MHz

Ref In

10 MHz

Ref Out

RF In/Out

ESG

E4433B VSA

E4406A

8960

Audio In

Hi LF Out RF Out

(RX Test) RF In

(TX Test)

Test Data Record for 8960 with E1960A GSM Test Application

Functional Verification Expected Limit (Note 1) Pass Fail

Analog Generator Level Accy

2.0 dB

Analog Generator Spectral Purity

Harmonics

≤

-25 dBc

Sub-Harmonics

≤

-40 dBc

Analog Audio Generator Accuracy ±0.03V

GSM Generator

Amplitude Flatness ±.6 dBm

Peak Phase Error (PGSM/EGSM) < ±4 Deg

(DCS/PCS) < ±6 Deg

RMS Phase Error < ±2 Deg.

Frequency Error

(18 Hz) <

.04 ppm

Analog Audio Analyzer Accuracy ±0.04V

Analog Analyzer RF Power Meter

1.6 dBm

GSM Analyzer Frequency Measurement Accy. < ±24 Hz

GSM Analyzer Residual Phase Error

RMS Error < ±2 Deg

Peak Error < ±8 Deg

GSM Analyzer PVT Accy Expected Limit (Note 1) Pass Fail

PVT Offset 0usec and 542.8usec (0 dB) ±2 dB

PVT Offset -10usec ≤8 dB

PVT Offset 552.8usec ≤8 dB

GSM Analyzer ORFS Measurement Expected Limit (Note 1) Pass Fail

ORFS Offset ±100 kHz ≤-6 dB

ORFS Offset ±200 kHz ≤-33 dB

ORFS Offset ±250 kHz ≤-38 dB

ORFS Offset ±400 kHz ≤-67 dB

ORFS Offset ±600 kHz ≤-76 dB

ORFS Offset ±800 kHz ≤-78 dB

ORFS Offset ±1000 kHz ≤-78 dB

ORFS Offset ±1200 kHz ≤-79 dB

Note 1 - Expected test limit levels may vary according to test instrument source

used. Expected limits listed may require modification.

8960 Operational Verification

Test Record Manual

Verification

8960 Operational Verification

Analog Generator Level Accuracy

Analog Generator Level Accuracy is a test to insure that the 8960 can set a basic level

and then step in 10 dB increments accurately.

The expected limit is:

RF Generator Output Level, RF In/Out (2 sources) - ± 2.0 dB

The current operating firmware in the 8960 does not allow manual operation of

amplitude or frequency using incremental steps for either Signal Generator 1 or 2; a PC

with controlling software is required.

Connect the 8960 RF In/Out Connector to the E4406A RF Input.

On the 8960 press the ‘Local’ button and the ‘System Configure’ button .

The GPIB address must be set to: 14

Manual

Verification

8960 Operational Verification

Analog Generator Level Accuracy, cont.

On the 8960 perform the following set up functions:

1. Press the blue ‘SHIFT’ button and the ‘PRESET’ button (front

panel buttons not shown above).

2. Press the display ‘Operating Mode’button and set mode to

Test using the knob.

3. Press the display ‘Test Function’ button and set function to

CW using the knob.

4. Press the ‘RF Gen Freq’ button and set frequency to 939 MHz

using the number keypad and the knob.

5. Press the ‘ RF Gen Power’ button and set power to -10 dBm

using the number keypad and the knob.

Manual

Verification

On the E4406A, press the ‘Preset’ System button, the ‘MODE’ Control

button and set to ‘Basic’ Mode .

On the E4406A, press the ‘FREQUENCY’ Control button and set the

Center Frequency to 939 MHz.

8960 Operational Verification

Analog Generator Level Accuracy, cont.

Manual

Verification

On the E4406A, press the ‘ZOOM’ button, the ‘Marker’ button, and the ‘Search’

button. Select the ‘TRACE’ screen button and set the trace to Spectrum

Average.

On the E4406A, press the ‘MEASURE’ Control button.

8960 Operational Verification

Analog Generator Level Accuracy, cont.

Manual

Verification

8960 Operational Verification

Analog Generator Level Accuracy, cont.

Step the 8960 down in amplitude in 10 dB increments to -80 dBm.

Insure that each level step is accurate within ± 2 dB.

Manual

Verification

On the 8960 perform the following set up functions:

1. Press the ‘RF Gen Freq’button and set frequency to 1805.2

MHz.

2. Press the ‘ RF Gen Power’ button and set power to -10 dBm.

8960 Operational Verification

Analog Generator Level Accuracy, cont.

On the E4406A set Center Frequency to 1.8052 GHz. Step the 8960 down in

amplitude in 10 dB increments to -80 dBm. Insure that each level step is

accurate within ± 2 dB.

Manual

Verification

On the 8960 perform the following set up functions:

1. Press the ‘RF Gen Freq’button and set frequency to 1930.2 MHz.

2. Press the ‘ RF Gen Power’ button and set power to -10 dBm.

8960 Operational Verification

Analog Generator Level Accuracy, cont.

On the E4406Aset Center Frequency to 1.9302 GHz. Step the 8960

down in amplitude in 10 dB increments to -80 dBm. Insure that each

level step is accurate within ± 2 dB.

Manual

Verification

Important Note:

The 8960 contains 2 complete signal generator sources (these are very

similar to the E4432/33B Signal Generator).

The operating firmware of the 8960 only provides for operation of 1

source using the manual user interface (front panel) in the analog mode.

It is not possible to test the second source in a analog mode using any

manual method.

However….the second source can be tested manually in a GSM

transmit mode. See the test titled “GSM Generator Amplitude Flatness.

Peak Phase Error, RMS Phase Error, and Frequency Error --- Source 2”

in this section.

Testing source 2 in an analog mode requires using the Verification

Automated Software.

8960 Operational Verification

Analog Generator Spectral Purity

Analog Generator Spectral Purity is a test to insure that the 8960 has harmonics and

spurious signals within specification.The test is run by setting the 8960 to a carrier

frequency of 300 MHz and power level of -10 dBm. Harmonics and spurious are

checked at 450MHz, 600 MHz, 750 MHz, and 900 MHz. The expected limits are:

Spectral Purity Harmonics - ≤-25 dBc

Sub-Harmonics - ≤-40 dBc

Non-Harmonics - ≤-55 dBc <1500 kHz

≤-68 dBc >1500 kHz

The current operating firmware in the 8960 does not allow manual operation of

amplitude or frequency using incremental steps for either Signal Generator 1 or 2, a PC

with controlling software is required.

Connect the 8960 RF In/Out Connector to the E4406A RF Input.

Manual

Verification

On the 8960 perform the following set up functions:

1. Press the blue ‘SHIFT’ button and the ‘PRESET’ button (front panel buttons not

shown above).

2. Press the display ‘Operating Mode’button and set mode to Test using the

knob. 3. Press the display ‘Test Function’ button and set function to CW using

the knob. 4. Press the ‘RF Gen Freq’button and set frequency to 300 MHz

using the number keypad and the knob.

5. Press the ‘ RF Gen Power’ button and set power to -10 dBm using the number

keypad and the knob.

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