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N O T E
N O T E
Tested Delay Settings
Equipment List
• 83712B 20 GHz Synthesized CW generator opt 1E1, 1E5, 1E8, 1E9
• DCA with an 83483A Dual Electrical module in the left slot
• 11636B Power Splitter
• 8133A Pulse Generator
Manual Procedure
N O T E
1 Connect the RF output of the 83712B to the channel 2 input of the DCA.
2 Connect 10 MHz reference output of the 83712B to the front panel trigger input of the DCA
Performance Verification
Fine Timebase Accuracy Test, 86100C
Fine Timebase Accuracy Test, 86100C
This test is valid for 86100C only.
On 86100C-H12 instruments, do not perform the following procedures. Instead, refer to the FINE
TIMEBASE ACCURACY TEST document, that is included on the 86100C-H12 documentation
CD. To locate this document, view the contents of the CD using Window's File Explorer. Double
click on the file index.html. On the displayed web page, click the left-side 86100C tab. In the
displayed web page, locate the last listing of the Mainframe section, which is Fine Timebase
Accuracy Test (.pdf). Use this document to perform the Fine Timebase Accuracy Test.
Calculate the accuracy of the 86100C timebase 4 ns ramp periods. There are discontinuities
within 100 ps of the start and end on the ramp, which are excluded from the test results. The test
is done with a 10 GHz sinusoidal waveform covering 40 cycles and then is compared to an ideal
waveform.
A time reference is calculated for each of the measured and ideal data points. The difference
between the two time references is the time error. Since the 86100C uses a 4 ns ramp the mea-
surement must include the full 4 ns range.
The test limit is calculated by looking at the worst time error in a range of resulting data. The
range of data selected is based on a dual marker measurement to cover small and large ranges
along with different starting and ending points. Test Line Limits
0.9 ps + 0.5% of delta time interval (Maximum Delay is ≤100 ns and delta time does not span
across any 28, 32, 36, ..., 100 ns delay setting ± 100 ps).
24ns, 28ns, 40ns, and 64ns
It is not possible to complete the Fine Timebase test without the algorithms in the test software.
Manual procedures are given here to help the user understand the test process.
Connection Setup:
4-24
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