Anritsu MS2711A Manuel utilisateur

MAINTENANCE MANUAL

MS2711A

Hand Held

Spectrum Analyzer

1. INTRODUCTION

This manual provides maintenance instructions for

the MS2711A Spectrum Analyzer. It describes the

product and provides performance verification proce-

dures, parts replacement procedures, and a replace-

able parts list.

2. IDENTIFICATION NUMBER

All Anritsu instruments are assigned a six-digit se-

rial number, such as "101001." This number appears

on a decal affixed to the back panel of the instru-

ment. Please use this identification number during

any correspondence with Anritsu Service Centers

about this instrument.

3. DESCRIPTION

The MS2711A Spectrum Analyzer is a synthe-

sizer-based hand held spectrum analyzer that pro-

vides quick and accurate signal results. Measure-

ments can be easily made using the main

instrument functions: frequency, span, amplitude

and bandwidth. A simplified block diagram is pro-

vided in Figure 2.

4. PERFORMANCE VERIFICATION

PROCEDURES

The following procedures can be used to verify the

performance of the MS2711A Spectrum Analyzer.

MS2711A

CONT

SINGLE

TRACE MEAS

SAVE

SETUP

RECALL

SETUP

LIMIT MARKER

SAVE

DISPLAY

RECALL

DISPLAY

MODE FREQ / SPAN AMPLITUDE BW/SWEEP

SYS

ENTER

CLEAR

ESCAPE

OFF

Figure 1. MS2711A Hand Held Spectrum Analyzer

490 JARVIS DRIVE ·MORGAN HILL, CA 95037-2809 P/N: 10580-00050

REVISION B

PRINTED: JULY 2002

4.1. Frequency Accuracy

The following test can be used to verify the CW fre-

quency accuracy of the Spectrum Analyzer.

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal

Source with option 15A, or equivalent

·Anritsu 34RSN50 50 ohm adapter or

equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable

or equivalent

·10 MHz Reference Standard

·BNC male to BNC male coaxial cable

b. Procedure:

1. Connect the 10 MHz reference source to

the Anritsu MG3692A Synthesized Sig-

nal Source.

2. Connect the output of the source to the

MS2711A RF Input.

3. Connect the external power supply

(Anritsu part number 40-115) to the

MS2711A.

4. Press and hold the ESCAPE/CLEAR key,

then press the ON/OFF key to turn on the

Spectrum Analyzer. (This sets the instru-

ment to the factory preset state.)

5. Turn on the 10 MHz reference source and

the Anritsu MG3692A Synthesized Sig-

nal Source.

6. Set the MG3692A output to 2000 MHz,

CW with an RF output level of 0 dBm.

NOTE

Before continuing, allow a 30-minute warm

up for the internal circuitry to stabilize.

7. On the MS2711A, press the AMPLITUDE

key and the REF LEVEL soft key.

8. Enter 20 and press the ENTER key to set

the Reference Level to 20 dBm.

9. Press the FREQ/SPAN key and the

CENTER soft key.

10. Enter 2000 and press the ENTER key to

set the center frequency to 2000 MHz.

2 MS2711A HHSA MM

HI-BAND

LO-BAND

IF AMP LOG

CPU

INPUT

0-50dB

REF

RBW

VCO1 VCO2

VCO3 VCO4

A/D

VBW

INPUT ATTENUATOR

AND LIMITER

N N

Figure 2. MS2711A Spectrum Analyzer Block Diagram

11. Press the SPAN soft key and enter 50.

Press the kHz soft key to set the span to

50 kHz.

12. Press the BW/SWEEP key.

13. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 10 kHz. Press ENTER to set the

resolution bandwidth to 10 kHz and se-

lect BACK.

14. Press the VBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 3 kHz. Press ENTER to set the video

bandwidth to 3 kHz.

15. Press the MARKER key, then the M1 soft

key.

16. Select the EDIT soft key and use the

Up/down arrow key to center the marker

on the waveform. Verify that the marker

frequency is 2000 MHz, ±4 kHz.

4.2. Phase Noise Verification

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal

Source with options 2A, 4 and 15A, or

equivalent

·Anritsu 34RSN50 50 ohm adapter or

equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable

or equivalent

b. Procedure:

1. Connect the output of the source to the

MS2711A RF Input.

2. Connect the external power supply

(Anritsu part number 40-115) to the

MS2711A.

3. Press and hold the ESCAPE/CLEAR key,

then press the ON/OFF key to turn on the

Spectrum Analyzer. (This sets the instru-

ment to the factory preset state.)

NOTE

Before continuing, allow a 30-minute warm

up for the internal circuitry to stabilize.

4. Set the MG3692Aoutput to 1000 MHz,

CW with an RF output level of –30 dBm.

5. On the MS2711A, press the BW/SWEEP

key.

6. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 10 kHz. Press ENTER to set the

resolution bandwidth to 10 kHz and se-

lect BACK.

7. Press the VBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 3 kHz. Press ENTER to set the video

bandwidth to 3 kHz.

8. On the MS2711A, press the FREQ/SPAN

key and the CENTER soft key.

9. Enter 1000 and press the MHz soft key to

set the center frequency to 1000 MHz.

10. Press the SPAN soft key and enter 0.1.

Press the MHz soft key to set the span to

0.100 MHz.

11. Press the AMPLITUDE key.

12. Press the REF LEVEL soft key and enter

–27. Press the ENTER key to set the ref-

erence level to –27 dBm.

13. Press the MARKER key, then the M1 soft

key.

14. Press EDIT and enter 1000. Press the MHz

soft key to set the M1 marker frequency

to 1000 MHz.

15. Press the BACK soft key and the M2 soft

key.

16. Press EDIT and enter 1000.03. Press MHz

to set the M2 marker frequency to

1000.030 MHz (30 kHz higher than the

center frequency).

17. Press the DELTA (M2-M1) soft key.

18. Press the SINGLE/CONT key and read and

record the D2 reading.

19. Press the SINGLE/CONT key to read and

record five values, then calculate the av-

erage of the five recorded values.

20. Subtract 40 dB from the average value

and verify that the result is £–75

dBc/Hz.

(For example: –35 dBc measured –

40 dB = –75 dBc/Hz.)

MS2711A HHSA MM 3

NOTE

The measured value is converted to dBc/Hz

using the following formula: ()

[]

dBc Hz measureddBc RBW

/log

=- - 10 1

At 10 kHz RBW, ()

10 40

log RBW

Hz =,so

dBc Hz measureddBc/=- -40.

21. Press the BACK soft key and the M3 soft

key.

22. Press the EDIT key and enter 999.970.

Press MHz to set the M3 marker fre-

quency to 999.970 MHz (30 kHz lower

than the center frequency).

23. Press the DELTA (M3-M1) soft key.

24. Press the SINGLE/CONT key. Read and re-

cord the D3 reading.

25. Press the SINGLE/CONT key to read and

record five values, then calculate the av-

erage of the five recorded values.

Subtract 40 dB from the average value and

verify that the result is £–75 dBc/Hz. (For

example: –35 dBc measured – 40 dB = –75

dBc/Hz.)

4.3. Second Harmonic Distortion Test

The following test can be used to verify the input re-

lated spurious response of the Spectrum Analyzer.

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal

Source with options 2A, 4 and 15A, or

equivalent

·Anritsu 34RSN50 50 ohm adapter or

equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable

or equivalent

·10 MHz Reference Standard

·50 MHz Low Pass Filter (Anritsu part

number 1030-96)

·BNC male to BNC male coaxial cable

b. Procedure:

1. Connect the 10 MHz reference source to

the Anritsu MG3692A Synthesized Sig-

nal Source.

2. Connect one end of the 50 MHz Low Pass

Filter to the output of the source and the

other end to the Spectrum Analyzer RF

Input with the RF coaxial cable.

3. Connect the external power supply

(Anritsu part number 40-115) to the Site

Master.

4. On the MS2711A, press and hold the ES-

CAPE/CLEAR key, then press the ON/OFF

key to turn on the Spectrum Analyzer.

(This sets the instrument to the factory

preset state.)

5. Turn on the 10 MHz reference source and

the Anritsu MG3692A Synthesized Sig-

nal Source.

6. Set the MG3692A output to 40 MHz CW,

with an RF output level of –30 dBm.

NOTE

Before continuing, allow a 30-minute warm

up for the internal circuitry to stabilize.

7. On the Spectrum Analyzer, press the AM-

PLITUDE key and the REF LEVEL soft key.

8. Enter –27 and press the ENTER key to set

the Reference Level to –27 dBm.

9. Press the SCALE soft key and enter 7

then press ENTER.

10. Press the FREQ/SPAN key and then the

CENTER soft key.

11. Enter 40 and press the MHz soft key to

set the center frequency to 40 MHz.

12. Press the SPAN soft key and enter 0.2.

Press the MHz soft key to set the span to

0.200 MHz.

13. Press the BW/SWEEP key.

14. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 10 kHz. Press ENTER to set the res-

olution bandwidth to 10 kHz and select

BACK.

15. Press the VBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 3 kHz. Press ENTER to set the video

bandwidth to 3 kHz.

16. Press the MARKER key, then the M1 soft

key.

4 MS2711A HHSA MM

17. Select the EDIT soft key, then enter 40.

Press the MHz soft key to set M1 to 40

MHz .

18. On the MG3692ASynthesized Signal

Source, adjust the output level so that

the M1 reading of Spectrum Analyzer is

–30 dBm at 40 MHz.

19. On the Spectrum Analyzer, press the

FREQ/SPAN key and then the CENTER soft

key.

20. Enter 80 and press the MHz soft key to

set the center frequency to 80 MHz.

21. Press the MARKER key and the M1 soft

key.

22. Select the EDIT soft key, then enter 80.

Press the MHz soft key to set M1 to 80

MHz .

23. Record the amplitude of the signal at M1

80 MHz:

Second Harmonic Level @ 80 MHz

=____dBm

24. Convert this measured value to dBc us-

ing the following formula:

Input Related Spurious Response (dBc) =

[Second Harmonic Level @ 80 MHz] +

30 dBm = ___ dBc

Specifications for this measurement are

–45 dBc with –30 dBm into the first mixer.

4.4. Residual Spurious Response Test

The following test can be used to verify the residual

spurious response of the Spectrum Analyzer.

a. Equipment Required:

·Anritsu 28N50-2 or SM/PL 50 ohm Ter-

mination or equivalent

b. Procedure:

1. Connect the 50 ohm termination to the

Spectrum Analyzer RF Input.

2. On the Spectrum Analyzer, press and

hold the ESCAPE/CLEAR key, then press

the ON/OFF key to turn on the Spectrum

Analyzer. (This sets the instrument to

the factory preset state.)

NOTE

Before continuing, allow a 30-minute warm

up for the internal circuitry to stabilize.

3. On the Spectrum Analyzer, press the AM-

PLITUDE key and the REF LEVEL soft key.

4. Enter –75 and press the ENTER key to set

the Reference Level to –75 dBm.

5. Press the SCALE soft key and enter 5,

then press ENTER.

6. Press the BW/SWEEP key.

7. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 10 kHz. Press ENTER to set the res-

olution bandwidth to 10 kHz and select

BACK.

8. Press the VBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 100 Hz and press ENTER to set the

video bandwidth to 100 Hz.

9. Press the FREQ/SPAN key and the START

soft key.

10. Enter 500 and press the kHz soft key to

set the start frequency to 500 kHz.

11. Press the STOP soft key and enter 4, then

press the MHz soft key to set the stop fre-

quency to 4 MHz.

12. Wait until one full sweep is complete.

13. Press the MARKER key and then the M1

soft key.

14. Press the ON/OFF soft key and then the

MARKER TO PEAK soft key.

15. Record the M1 amplitude reading and

verify whether it is less than or equal to

–90 dBm.

NOTE

If a spur with an amplitude larger than –90

dBm occurs, wait another full sweep and

observe whether the spur occurs at the

same point on the second sweep. If the spur

does not occur at the same point on the sec-

ond sweep, then the spur on the first sweep

was not real.

16. Press the BW/SWEEP key.

MS2711A HHSA MM 5

17. Press the VBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 3 kHz and press ENTER to set the

video bandwidth to 3 kHz.

18. Press the FREQ/SPAN key and the START

soft key.

19. Enter 4and press the MHz soft key to set

the start frequency to 4 MHz.

20. Press the STOP soft key and enter 1000,

then press the MHz soft key to set the

stop frequency to 1000 MHz.

21. Wait until one full sweep is complete.

22. Press the MARKER key and then the M1

soft key.

23. Press the ON/OFF soft key and then the

MARKER TO PEAK soft key.

24. Record the M1 amplitude reading and

verify it is £–90 dBm.

25. Press the FREQ/SPAN key and the START

soft key.

26. Enter 1000 and press the MHz soft key to

set the start frequency to 1000 MHz.

27. Press the STOP soft key and enter 2000,

then press MHz soft key to set the stop

frequency to 2000 MHz..

28. Wait until one full sweep is complete.

29. Press the MARKER key and then the M1

soft key.

30. Press the ON/OFF soft key and then the

MARKER TO PEAK soft key.

31. Record the M1 amplitude reading and

verify it is £–90 dBm.

32. Press the FREQ/SPAN key and the START

soft key.

33. Enter 2000 and press the MHz soft key to

set the start frequency to 2000 MHz.

34. Press the STOP soft key and enter 3000,

then press the MHz soft key to set the

stop frequency to 3000 MHz.

35. Wait until one full sweep is complete.

36. Press the MARKER key and then the M1

soft key.

37. Press the ON/OFF soft key and then the

MARKER TO PEAK soft key.

38. Record the M1 amplitude reading and

verify it is £–90 dBm.

4.5. Resolution Bandwidth Accuracy Test

The following test can be used to verify the resolu-

tion bandwidth accuracy of the Site Master Spec-

trum Analyzer at four frequencies.

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal

Source with options 2A, 4 and 15, or

equivalent

·Anritsu 34RSN50 50 ohm adapter or

equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable

or equivalent

·10 MHz Reference Standard

·BNC male to BNC male coaxial cable

b. Procedure:

1. Connect the 10 MHz reference source to

the Anritsu MG3692A Synthesized Sig-

nal Source.

2. Connect the output of the Anritsu

MG3692A Synthesized Signal Source to

the Spectrum Analyzer RF Input.

3. On the Spectrum Analyzer, press and

hold the ESCAPE/CLEAR key, then press

the ON/OFF key to turn on the Spectrum

Analyzer. (This sets the instrument to

the factory preset state.)

NOTE

Before continuing, allow a 30-minute warm

up for the internal circuitry to stabilize.

4. Set the MG3692A output to 1 GHz, with

an RF output level of –30 dBm.

5. On the Spectrum Analyzer, press the AM-

PLITUDE key and the REF LEVEL soft key.

6. Enter –27 and press the ENTER key to set

the Reference Level to –27 dBm.

7. Press the SCALE soft key and enter 3,

then press ENTER.

8. Press the FREQ/SPAN key and the

CENTER soft key.

6 MS2711A HHSA MM

9. Enter 1and press the GHz soft key to set

the center frequency to 1 GHz.

NOTE

The Measured Occupied BW value for each

RBW setting can be recorded in Table 1.

1 MHz RBW Test

10. Press the SPAN soft key, enter 5and

press the MHz soft key to set the span to

5 MHz.

11. Press the BW/SWEEP key.

12. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 1 MHz. Press ENTER to set the reso-

lution bandwidth to 1 MHz and select

BACK.

13. Press the VBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 3 kHz and press ENTER to set the

video bandwidth to 3 kHz.

14. Press the MEAS key, the OBW soft key,

and then the dBc soft key.

15. Press the MEASURE ON/OFF soft key and

read the displayed Meas Occ BW value.

The Meas Occ BW value should be ± 20%

of the RBW.

100 kHz RBW Test

16. Press the FREQ/SPAN key.

17. Press the SPAN soft key, enter 1and

press the MHz soft key to set the span to

1 MHz.

18. Press the BW/SWEEP key.

19. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 100 kHz. Press ENTER to set the res-

olution bandwidth to 100 kHz and select

BACK.

20. Press the MEAS key, the OBW soft key,

and then the dBc soft key.

21. Press the MEASURE ON/OFF soft key and

read the Meas Occ BW value. The Meas

Occ BW value should be ± 20% of the

RBW.

30 kHz RBW Test

22. Press the FREQ/SPAN key.

23. Press the SPAN soft key, enter .1 and

press the MHz soft key to set the span to

0.1 MHz.

24. Press the BW/SWEEP key.

25. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 30 kHz. Press ENTER to set the res-

olution bandwidth to 30 kHz and select

BACK.

26. Press the MEAS key, the OBW soft key,

and then the dBc soft key.

27. Press the MEASURE ON/OFF soft key and

read the displayed Meas Occ BW value.

The Meas Occ BW value should be ±20%

of the RBW.

10 kHz RBW Test

28. Press the FREQ/SPAN key

29. Press the SPAN soft key, enter .04 and

press the MHz soft key to set the span to

0.04 MHz.

30. Press the BW/SWEEP key.

31. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 10 kHz. Press ENTER to set the res-

olution bandwidth to 10 kHz and select

BACK.

32. Press the MEAS key, the OBW soft key,

and then the dBc soft key.

33. Press the MEASURE ON/OFF soft key and

read the displayed Meas Occ BW value.

The Meas Occ BW value should be ±35%

of the RBW.

MS2711A HHSA MM 7

RBW

Setting Lower

Limit Measured

Value Upper

Limit

1 MHz 0.8 MHz 1.2 MHz

100 kHz 80 kHz 120 kHz

30 kHz 24 kHz 36 kHz

10 kHz 6.5 kHz 13.5 kHz

Table 1. RBW Check

4.6. Level Accuracy Test

This test verifies the level accuracy of the Spectrum

Analyzer.

a. Equipment Required:

·Anritsu MG3692A Synthesized Signal

Source, with options 2A, 4 and 15A

·Anritsu ML2430A-Series Power Meter or

equivalent

·Anritsu MA2442A High Accuracy Power

Sensor or equivalent

·Anritsu N241A50 Power Splitter or

equivalent

·Anritsu 34NN50A 50 ohm adapter or

equivalent

·Anritsu 34RSN50 50 ohm adapter or

equivalent

·Anritsu 15NNF50-1.5C RF Coaxial Cable

or equivalent

b. Procedure:

1. Connect the power sensor to the power

meter and calibrate the sensor.

2. Using the power splitter, coaxial cable

and adapters, connect the Spectrum Ana-

lyzer to the signal source and the power

sensor as shown in Figure 3.

3. Connect the external power supply

(Anritsu part number 40-115) to the

Spectrum Analyzer.

4. On the Spectrum Analyzer, press and

hold the ESCAPE/CLEAR key, then press

the ON/OFF key to turn on the Spectrum

Analyzer. (This sets the instrument to

the factory preset state.)

5. Turn on the power meter and signal

source.

NOTE

Before continuing, allow a 30-minute warm

up for the internal circuitry to stabilize.

6. On the Spectrum Analyzer, press the

BW/SWEEP key.

7. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 10 kHz. Press ENTER to set the res-

olution bandwidth to 10 kHz.

8. Press BACK, then the VBW soft key and

then the EDIT soft key. Use the Up/down

arrow key to select 3 kHz. Press ENTER to

set the video bandwidth to 3 kHz.

9. Press BACK, then DETECTION, then AVER-

AGE.

10. Press the FREQ/SPAN key.

11. Press the SPAN soft key and enter .5,

then press the MHz key to set the span to

.5 MHz.

12. Press the AMPLITUDE key.

13. Press the REF LEVEL soft key, enter 20

and press the ENTER key to set the refer-

ence level to +20 dBm.

14. Press the FREQ/SPAN key and the

CENTER soft key.

15. Enter 50 and press the MHz soft key to

set the center frequency to 50 MHz.

16. On the Anritsu ML2430A-Series Power

Meter, press the Sensor key and then the

CalFactor soft key. Select the FREQ soft

key and enter 50 MHz for the Input Sig-

nal Frequency. This sets the power meter

to the proper power sensor cal factor.

Press the Sensor key to display the

power reading.

8 MS2711A HHSA MM

MA2442A

SENSOR

ML2438A POWER METER

68047C SOURCE

MS2711A

15NNF50-1.5A

34NN50A

ADAPTER

34RSN50 ADAPTER

N241A50

MS2711A

CONT

SINGLE

TRACE MEAS

SAVE

SETUP

RECALL

SETUP

LIMIT MARKER

SAVE

DISPLAY

RECALL

DISPLAY

MODE FREQ / SPAN AMPLITUDE BW/SWEEP

SYS

ENTER

CLEAR

ESCAPE

OFF

Figure 3. Measurement Accuracy Setup

17. Set the MG3692Aoutput to 50 MHz CW

and the power level to +10 dBm as indi-

cated on the power meter.

NOTE

To insure accuracy, set the output of the

signal source using the power meter read-

ing. Do not rely on the signal source dis-

play.

18. Press the MARKER key, then the M1 soft

key.

19. Select the MARKER TO PEAK soft key to

position the marker at the center of the

response for the test frequency.

NOTE

Table 2 can be used to record the results of

this test for future reference.

20. Verify that the M1 reading is ±2dB

maximum from the input signal.

21. Press the AMPLITUDE key.

22. Press the REF LEVEL soft key, enter 0and

press ENTER to set the reference level to

0 dBm.

23. Set the MG3692Apower level to –10

dBm as indicated on the power meter.

24. Verify that the M1 reading is ±2dB

maximum from the input signal.

25. Press the AMPLITUDE key.

26. Press the REF LEVEL soft key, enter –20

and press ENTER to set the reference

level to –20 dBm.

27. Set the MG3692Apower level to –30

dBm as indicated on the power meter.

28. Verify that the M1 reading is ±2dB

maximum from the input signal.

29. Press the AMPLITUDE key.

30. Press the REF LEVEL soft key and enter

–40. Press ENTER to set the reference

level to –40 dBm.

31. Set the MG3692Apower level to –50

dBm as indicated on the power meter.

32. Verify that the M1 reading is ±2dB

maximum from the input signal.

33. Repeat steps 14 through 32 for frequen-

cies of 500 MHz, 1000 MHz, 1500 MHz,

2000 MHz, 2500 MHz and 2950 MHz.

MS2711A HHSA MM 9

Freq (MHz) Power

Level

(dBm)

Ref Level

(dBm) M1 Reading

50 +10

–10

–30

–50

+20

–20

–40

500 +10

–10

–30

–50

+20

–20

–40

1000 +10

–10

–30

–50

+20

–20

–40

1500 +10

–10

–30

–50

+20

–20

–40

2000 +10

–10

–30

–50

+20

–20

–40

2500 +10

–10

–30

–50

+20

–20

–40

2950 +10

–10

–30

–50

+20

–20

–40

Table 2. Level Accuracy Test Results

4.7. Displayed Average Noise Level

The following test can be used to verify the displayed

average noise level of the Spectrum Analyzer.

a. Equipment Required:

·Anritsu 28N50-2 or SM/PL 50 ohm Ter-

mination or equivalent

b. Procedure:

1. Connect the 50 ohm termination to the

Spectrum Analyzer RF Input.

2. On the Spectrum Analyzer, press and

hold the ESCAPE/CLEAR key, then press

the ON/OFF key to turn on the Spectrum

Analyzer. (This sets the instrument to

the factory preset state.)

NOTE

Before continuing, allow a 30-minute warm

up for the internal circuitry to stabilize.

3. On the Spectrum Analyzer, press the AM-

PLITUDE key and the REF LEVEL soft key.

4. Enter –75 and press the ENTER key to set

the Reference Level to –75 dBm.

5. Press the SCALE soft key and enter 5,

then press ENTER.

6. Press the BW/SWEEP key.

7. Press the DETECTION soft key, then press

the AVERAGE soft key, then select BACK.

8. Press the RBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 10 kHz. Press ENTER to set the res-

olution bandwidth to 10 kHz and select

BACK.

9. Press the VBW soft key and then the EDIT

soft key. Use the Up/down arrow key to

select 100 Hz and press ENTER to set the

video bandwidth to 100 Hz.

10. Press the FREQ/SPAN key and the START

soft key.

11. Enter 100 and press the kHz soft key to

set the start frequency to 100 kHz.

12. Press the STOP soft key and enter 500,

then press the kHz soft key to set the stop

frequency to 500 kHz.

13. Wait until a full sweep is complete.

14. Press the MARKER key and then press

the M1 soft key.

15. Press the MARKER TO PEAK soft key. Re-

cord the M1 amplitude reading and ver-

ify it is £–80 dBm.

16. Press the FREQ/SPAN key and the START

soft key.

17. Enter 500 and press the kHz soft key to

set the start frequency to 500 kHz.

18. Press the STOP soft key and enter 4, then

press the MHz soft key to set the stop fre-

quency to 4 MHz.

19. Wait until a full sweep is complete.

20. Press the MARKER key and then press

the M1 soft key.

21. Press the MARKER TO PEAK soft key. Re-

cord the M1 amplitude reading and ver-

ify it is £–95 dBm.

22. Press the BW/SWEEP key.

23. Press the VBW soft key, and then the EDIT

soft key. Use the Up/down arrow key to

select 3 kHz, and press ENTER to set the

video bandwidth to 3 kHz.

24. Press the FREQ/SPAN key and the START

soft key.

25. Enter 4and press the MHz soft key to set

the start frequency to 4 MHz.

26. Press the STOP soft key and enter 1000,

then press the MHz soft key to set the

stop frequency to 1000 MHz.

27. Wait until a full sweep is complete.

28. Press the MARKER key and then press

the M1 soft key.

29. Press the MARKER TO PEAK soft key. Re-

cord the M1 amplitude reading and ver-

ify it is £–95 dBm.

30. Press the FREQ/SPAN key and the START

soft key.

31. Enter 1000 and press the MHz soft key to

set the start frequency to 1000 MHz.

32. Press the STOP soft key and enter 2000

and press the MHz soft key to set the stop

frequency to 2000 MHz.

33. Wait until a full sweep is complete.

10 MS2711A HHSA MM

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