Anritsu S113C Betriebsanweisung PDF herunterladen (Seite 85)

Procedure

Step 1. Reset the Site Master to the factory default settings if a known starting state is

desired.

If the unit is off, hold down the ESC/CLEAR key while pressing the ON/OFF

key.

If the unit is already on, press the RECALL SETUP key on the data keypad.

When the key is pressed, a Recall Trace selection box appears on the display.

Select setup location 0 to recall the factory preset state.

Step 2. Using the test port extension cable and 30 dB attenuator, connect the signal

source to the input of the attenuator, and connect the output of the attenuator to

the

RF In test port of the Site Master.

Step 3.

Press the AMPLITUDE key and select the

REF LEVEL soft key to set the refer-

ence level to 0 dBm.

Step 4. Press the

SCALE soft key and set the scale to 10 dB/division.

Step 5. Press the

ATTEN soft key followed by the MANUAL soft key and set the attenua-

tion to 20 dB.

Step 6.

Press the SWEEP key and select the

RBW and VBW soft keys to set the resolu-

tion bandwidth to 1 MHz and the video bandwidth to AUTO.

Step 7. Press the

MAX HOLD soft key to set max hold to ON as indicated in the lower

left of the display.

Step 8. Press the

MEASURE soft key and press the CHANNEL POWER soft key.

Step 9. Select the

CENTER FREQ soft key and set the center frequency of the GSM sig-

nal to 947.5 MHz.

Step 10. Select the

INT BW soft key and enter 2.0 MHz for the integration bandwidth, or

set the integration bandwidth appropriate for the particular application.

Step 11. Select the

CHANNEL SPAN soft key and enter 4.0 MHz as the channel span, or

set the channel span to a value appropriate for the particular application.

Step 12. Make the measurement by pressing the

MEASURE ON/OFF soft key. The detec-

tion method is automatically changed to Average. Solid vertical lines are drawn

on the display to indicate the integration bandwidth. The Site Master will dis-

play the measurement results.

5-13

Chapter 5 Spectrum Analyzer Measurements

SgLabs

www.sglabs.it

email: [email protected]

tel. +39 0755149360

SgLabs

www.sglabs.it

email: [email protected]

tel. +39 0755149360

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