Power Meter Verification (Option 29) - Anritsu Spectrum Master MS2711D Maintenance Manual

15. Use the keypad to enter –60 and press the ENTER key to set the end limit to –60 dB.
16. Verify that the trace is below the limit lines.

13. Power Meter Verification (Option 29)

The following test can be used to verify the accuracy of the power measurements.
a. Equipment Required:
· Anritsu MG3692A Synthesized Signal Source, with options 2A, 4 and 15A
· Anritsu ML2438A Dual Channel Power Meter or equivalent
· Anritsu MA2442A High Accuracy Power Sensor or equivalent
· Anritsu N241A50 Power Splitter or equivalent
· Anritsu 34NN50A 50W adapter or equivalent
· Anritsu 34RSN50 50W adapter or equivalent
· Anritsu 34RKNF50 50W adapter or equivalent
· Anritsu 15NNF50-1.5C RF Coaxial Cable or equivalent
· Weinschel 1-10 10 dB Fixed Attenuator
b. Procedure:
1. Turn on the power meter and signal source.
NOTE: Before continuing, allow a 30-minute warm up for the internal circuitry to stabilize.
2. On the power meter, press the
display Channel 2 setup menu. Press the
Press the
Sensor
3. Connect the power sensors to the power meter and calibrate the sensors.
4. Set the MG3692A output power level to 5 dBm.
5. Set the MG3692A output to 50 MHz CW.
6. On the power meter, press the
the keypad to enter 50 MHz as the input signal frequency, which sets the power meter to the
proper power sensor cal factor. Press the
reading.
7. Connect sensor A to the MG3692A output, measure the output power level and record the value
in column A of Table 11.
Table 11. Output Power Level
Sensor A Reading
Freq (MHz)
@ Source Output
50
1000
2000
2850
8. Disconnect Sensor A from the MG3692A output.
9. Connect the power splitter to the MG3692A output and the Sensor B to one of the power splitter
outputs. Install the 10 dB Fixed Attenuator to the other power splitter output and then connect
Sensor A to the end of the Attenuator. Refer to Figure 1.
Spectrum Master MM
key, the
Channel
key to display both Sensor A and Sensor B Readings.
key, the
Sensor
A B
Sensor A Reading
@ end of Attenu-
ator
soft key and then the
Setup
key twice to set the input configuration to B.
INPUT
soft key, and then the
Cal Factor
key on the power meter to display the power
SENSOR
C
Sensor B Reading
Splitter/Attenuator
@ Power Splitter
Combined Loss
soft key to
CHANNEL
soft key. Use
FREQ
D E
Sensor B Path
Power Splitter
Output Loss
23