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Measurements Operation Verification
MS278XB OM 5-87
Frequency Response
The following test can be used to verify that the MS2781B is within its Frequency Response specifications.
Test Setup
Connect the equipment as shown in the figure below:
Test Procedure
1. Turn on the MS2781B Signal Analyzer, Power Meter, and the MG369XB Signal Generator and
allow them to warm up for one hour.
2. Press the Preset key on the MS2781B to reset the instrument to factory default state.
3. Set the MS2781B to use External Reference signal.
4. Set the output frequency of the MG369XB to 50 MHz CW.
5. Set the output level of the MG369XB to +9 dBm.
6. Connect the attenuators to the power splitter as shown in Figure 5-55. Use a cable to link the
MG369XB RF output to the 3 dB attenuator. Connect a N-male to N-female Phase Matched
adapter to the 10 dB attenuator.
7. Zero and calibrate both power sensors.
8. Connect a power sensor (Input A) to the power splitter and a power sensor (Input B) to the female
end of the adapter.
Figure 5-55. Equipment Setup for Frequency Response Test