Performance Verification
Giga-tronics 2500B Series Microwave Signal Generators
Page 108
Operation Manual, Part Number 34737, Rev C, June 30, 2011
9.2.7
Level Accuracy
This test measures the accuracy of the power output of the 2500B at different frequencies.
NOTE:
When measuring the flatness and accuracy of the 2500B, consider the various measurement uncertainties in the
test system. These include, but are not limited to, VSWR, Cal Factor uncertainty, and linearity.
9.2.7.1
Equipment and Materials
Universal power meter
CW power sensor for the frequency range of the model 2500B under test
Cables and adapters for connecting the test setup
Datasheet 4 (Table 68 on page 109)
Table 67: Level Accuracy
Level Accuracy
Step
Action
1.
Connect the equipment as shown in Figure 50 on page 106.
2.
Allow the equipment to warm up for at least 30 minutes.
3.
Set the output level of the 2500B to 0 dBm.
4.
Set the 2500B to the first test frequency listed in the datasheet.
5.
Press
, and record the measured output power in the “Level = 0dBm” column.
6.
Repeat steps 4 and 5 for the remaining test frequencies shown in Datasheet 4 that are within
the operating range of the instrument.
7.
Set the output level of the 2500B to -9.99 dBm. For 2550B models, set the output level to -4.99
dBm.
8.
Set the 2500B to the first test frequency listed in the datasheet.
9.
Record the measured output power in the “Level = -9.99 dBm......” column.
10.
Repeat steps 7 and 8 for the remaining test frequencies shown in the datasheet that are within
the operating range of the instrument.
11.
After entering all of the test results into the datasheet, compare the results with the following
to verify compliance of the 2500B:
End of Procedure
RF ON
