SC300 Option
Verification
6
6-91
Table 6-48. Edge Amplification Verification
Calibrator
Mainframe Edge
Output
HP 3458A
Range
Topline
Reading
Baseline
Reading
Peak-to-
Peak
Peak-to-
Peak x
Correction
Tolerance
(±V)
100 mV, 1 kHz 100 mV dc 0.0022
1.00V, 1 kHz 1 V dc 0.0202
5 mV, 10 kHz 100 mV dc 0.0003
10 mV, 10 kHz 100 mV dc 0.0004
25 mV, 10 kHz 100 mV dc 0.0007
50 mV, 10 kHz 100 mV dc 0.0012
100 mV, 10 kHz 1 V dc 0.0022
500 mV, 10 kHz 1 V dc 0.0102
1.00 V, 10 kHz 1 V dc 0.0202
2.5 V, 10 kHz 10 V dc 0.0502
6-120. Edge Frequency Verification
This procedure uses the following equipment:
• PM 6680 Frequency Counter with an ovenized timebase (Option PM 9690 or PM
9691)
• BNC cable supplied with the SC300
Refer to Figure 6-21 for proper setup connections. Set the Calibrator Mainframe to
SCOPE mode, with the Edge menu on the display. Press O on the Calibrator
Mainframe to activate the output. Then follow these steps to verify Edge frequency:
1. Set the PM 6680’s FUNCTION to measure frequency on channel A with auto
trigger, measurement time set to 1 second or longer, 50 Ω impedance, and filter off.
2. Using the BNC cable, connect the SCOPE connector on the Calibrator Mainframe to
PM 6680 channel A.
3. Program the Calibrator Mainframe to output 2.5 V at each frequency listed in Table
6-49.
4. Allow the PM 6680 reading to stabilize, then record the PM 6680 reading for each
frequency listed in Table 6-49. Compare to the tolerance column of Table 6-49.
Table 6-49. Edge Frequency Verification
Calibrator Mainframe
Frequency
(Output @ 2.5 V p-p)
PM 6680 Reading
(Frequency)
Tolerance
1 kHz 0.025 Hz
10 kHz 0.25 Hz
100 kHz 2.50 Hz
1 MHz 25.0 Hz
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