6. POWER MONITOR VERIFICATION

If the Power Monitor (Option 5) is installed in the Site Master, the following test can be used to verify the accuracy of the power measurements. Measure- ment calibration of the Site Master is not required for this test.

a.Equipment Required:

￿RF Detector, 10 MHz to 20 GHz, Anritsu 560-7N50B

￿10 dB Attenuator, Weinshel 1R-10

￿30 dB Attenuator, Weinshel 1R-30

￿RF Reference Source, 0.050 GHz, Anritsu MA2418A

￿DC Power Supply, Anritsu 2000-933

b.Procedure

1.Connect the DC power supply to the MA2418A Reference Source. (Refer to Figure 3.)

560-7N50B RF Detector

SerialInterface

12V

 

External

 

BatteryCharging

 

DCmA)

 

15V-(45C

 

12

 

Port

 

Test

 

820A

Det

RF

 

 

1

AUTO

 

 

SCALE

 

START

2

 

CAL

ESCAPE

 

CAL

3

CLEAR

4

 

SAVE

 

SETUP

 

 

5

RECALL

 

 

SETUP

 

LIMIT

6

 

7

MARKER

 

SAVE

8

 

DISPLAY

 

ENTER

9

RECALL

 

 

DISPLAY

 

ON

0

RUN

OFF

PRINT

HOLD

Site Master w/ Option 5 Installed

Figure 3. Power Monitor Verification

2.Connect the MA2418A Reference Source to the input of the 560-7N50B RF detec- tor.

3.Connect the RF Detector output to the RF Detector input of the Site Master.

4.Connect the DC power supply to the ap- propriate line voltage to supply power to the MA2418A Reference Source.

5.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.)

6.Press the MODE soft key.

7.Use the Up/Down Arrow key to highlight

POWER MONITOR, then press ENTER.

8.Press the ZERO soft key to zero the power monitor.

When complete, ZERO ADJ:ON is dis- played in the message area.

9.Verify that the power monitor reading is 0.0 dBm ±1 dB.

Attenuators

MA2418A

Reference Source

 

MA2418A Reference Source

50 MHz, 50 W

 

15-24VDC 20mA

0dBm

 

 

2000-933 DC Power Supply

4

Site Master S820A MM

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Anritsu S820A manual Power Monitor Verification, 560-7N50B RF Detector