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Appendix B: Performance Verification
B 8
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Connections. Refer to Figure B-3 for connections.
Use the N-to-BNC adapter, an SMA female-to-BNC male adapter, and an SMA
cable to make the following connection:
H Connect the CLOCK output from the DG2040 Data Generator rear panel to
the frequency counter input (INPUT B).
Use the second SMA cable, the second female-to-BNC male adapter, and the
50 W termination to make the following connection:
H Terminate the CLOCK output.
DG2040 Data Generator
SMA female to BNC male adapter
Figure B 3: Frequency measurement connections
Setup. Set the frequency counter to frequency measurement mode.
Procedure. Follow the steps below to verify the accuracy of the internal clock
frequencies:
1. Load the TP1CLK.PDA test pattern file from the performance check disk.
When the file is loaded, the DG2040 Data Generator clock frequency will be
set to 1100 MHz internally.
NOTE. Refer to Table B-4 for steps 2 through 5.
2. Perform the following steps to check the 1.100000 GHz clock frequency
accuracy:
a. Press the START/STOP button on the front panel. The LED corre-
sponding to the button should be on.
CLOCK
CLOCK
SMA Cable
and 50 W termination
DG2040 Data Generator
Frequency Counter
N to BNC adapter and
SMA female to BNC
male adapter
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