Filter
Top Products
3-12. TIME MEASUREMENT ACCURACY
This test uses a precise frequency source to check the accuracy of time measurement functions.
Specification:
± [(0.005% x ∆t) + (2 x 10
−
6
x delay setting) + 150 ps]
Equipment Required:
The following equipment is required for this test. Procedures are based on the model or part number rec-
ommended.
Equipment Required Critical Specification
Recommended
Model/Part Number
Signal Generator
Cable
Adapter
200 MHz, timebase accuracy 0.25 ppm
50 Ω BNC (m to m) 48-inch
50 Ω Type N (m) to BNC (f)
HP 8656B Opt. 001
HP 10503A
HP 1250-0780
Procedure:
1. Set the signal generator to 181.81818 MHz (5.5 ns period) and approximately 600 mV rms.
2. Use the N-to-BNC adapter to connect the cable to the signal generator. Connect the free end of the
BNC cable to the channel 1 input.
3. In the Waveform Selection menu delete channel 2. If channel 1 is not inserted, insert channel 1. Set
the following parameters in the order given:
Menu Selection Setting
Channel
Trigger
Display
Input
Probe
v/Div
Offset
Coupling
s/Div
Mode
Source
Level
Slope
Mode
Grid
1
1:1
400 mV
0.0 V
50 Ω / DC
2.00 ns
Edge
Chan 1
0.0 V
Positive
Normal
On
HP 16532A - Performance Tests
3-13