Anritsu S332C Especificaciones descargar pdf (Pagina 8)

NOTE

The measured value is converted to dBc/Hz us

-

ing the following formula:

()

[]

dBc Hz measureddBc

RBW

Hz

/

log

=- - 10

1

At 10 kHz RBW,

()

10 40

1

log

RBW

Hz

=

,so

dBc Hz measureddBc/ =- - 40

.

23. Press the

BACK soft key and the M3 soft

key.

24. 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).

25. Press the

DELTA (M3-M1) soft key.

26. Press the

RUN/HOLD key. Read and record

the D 3 reading.

27. Press the

RUN/HOLD key to read and re

-

cord five values, then calculate the aver

-

age of the five recorded values.

28. Substract 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.)

7. SPECTRUM ANALYZER SECOND

HARMONIC DISTORTION TEST

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

lated spurious response of the Site Master Spectrum

Analyzer.

a. Equipment Required:

·

Anritsu MG3692A Synthesized Signal

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

equilvalent

·

10 MHz Reference Standard

·

50 MHz Low Pass Filter

·

RF coaxial cable, N male to N male

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 Site Master 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 Site Master, press and hold the

ESCAPE/CLEAR key, then press the

ON/OFF key to turn on the Site Master.

(This sets the instrument to the factory

preset state.)

5. Turn on the 10 MHz reference source

and the Anritsu MG3692A Synthesized

Signal Source.

6. Set the MG3692A output to 40MHz 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 Site Master, press the

MODE key.

Use the up/down arrow key to highlight

SPECTRUM ANALZYER and press ENTER

to select spectrum analyzer mode.

8. Press the

AMPLITUDE key and the REF

LEVEL

soft key.

9. Enter –27 and press the

ENTER key to set

the Reference Level to –27 dBm.

10. Press the

SCALE soft key and enter 7

then press ENTER.

11. Press the

FREQ/DIST key and then the

CENTER soft key.

12. Enter 40 and press the

MHz soft key to

set the center frequency to 40 MHz.

13. Press the

SPAN soft key and enter 0.2.

Press the

MHz soft key to set the span to

0.200 MHz.

14. Press the

SWEEP key.

15. Press the

RBW soft key and then the

MANUAL soft key. Use the Up/down arrow

key to select

10 kHz. Press ENTER to set

the resolution bandwidth to 10 kHz and

select

BACK.

16. Press the

VBW soft key and then the

MANUAL soft key. Use the Up/down arrow

key to select

3 kHz. Press ENTER to set

the video bandwidth to 3 kHz.

17. Press the

MARKER key, then the M1 soft

key.

18. Select the

EDIT soft key, then enter 40.

Press the

MHz soft key to set M1 to 40

MHz .

4 Site Master S114C/S332C MM

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 27 28

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