Anritsu S332C Especificaciones descargar pdf (Pagina 9)

19. On the MG3692A Synthesized Signal

Source, adjust the output level so that

the M1 reading of Site Master Spectrum

Analyzer is –30 dBm at 40 MHz.

20. On the Site Master, press the

FREQ/DIST

key and then the CENTER soft key.

21. Enter

80 and press the MHz soft key to

set the center frequency to 80 MHz.

22. Press the MARKER key and the M1 soft

key.

23. Select the

EDIT soft key, then enter 80.

Press the

MHz soft key to set M1 to 80

MHz .

24. Record the amplitude of the signal at M1

80 MHz:

Second Harmonic Level @ 80 MHz =____dBm

25. 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.

8. SPECTRUM ANALYZER RESIDUAL

SPURIOUS RESPONSE TEST

The following test can be used to verify the residual

spurious response of the Site Master Spectrum Ana

-

lyzer.

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

Site Master RF Input.

2. 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.)

NOTE

Before continuing, allow a 30-minute warm up

for the internal circuitry to stabilize.

3. 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.

4. Press the

AMPLITUDE key and the REF

LEVEL

soft key.

5. Enter –75 and press the

ENTER key to set

the Reference Level to –75 dBm.

6. Press the SCALE soft key and enter 5,

then press ENTER.

7. Press the

SWEEP key.

8. 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.

9. Press the

VBW soft key and then the

MANUAL 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/DIST key and the START

soft key.

11. Enter

500 and press the kHz soft key to

set the start frequency to 500 kHz.

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

press the

MHz soft key to set the stop fre-

quency to 4 MHz.

13. Wait till one full sweep is complete.

14. Press the

MARKER key and then the M1

soft key.

15. Press the

ON/OFF soft key and then the

MARKER TO PEAK soft key.

16. 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 ob

-

serve whether the spur occurs at the same

point on the second sweep. If the spur does not

occur at the same point on the second sweep,

then the spur on the first sweep was not real.

17. Press the

SWEEP key.

18. Press the

VBW soft key and then the

MANUAL soft key. Use the Up/down arrow

key to select

3 kHz and press ENTER to set

the video bandwidth to 3 kHz.

Site Master S114C/S332C MM 5

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