Time Scale Accuracy (Tsa) Test - Keysight Technologies Infiniium V Series Service Manual

3
Testing Performance

Time Scale Accuracy (TSA) Test

This procedure verifies the maximum TSA specification for the oscilloscope.
Description
TSA refers to the absolute accuracy of an oscilloscope's time scale. Because TSA
depends directly on frequency of a crystal oscillator, it is comprised of two
components: an initial accuracy component and an aging component.
The initial accuracy component applies to the oscilloscope's accuracy immediately
after a time base calibration, whether performed at the factory, by a customer, or
by a Keysight service center. The aging component scales linearly from the time
since the last time base calibration, and adds to the initial accuracy component.
Equipment Required
Description
Synthesized sine wave
source
10 MHz frequency
reference
RF cable
Adapters, assorted
44
Critical specifications
Output Frequency: ≥ 10 MHz
Output Amplitude: 0 dBm
Frequency Resolution: 0.1 Hz
Output Frequency: 10 MHz
Absolute Freq. Error: < ±0.0275 ppm
Ω
50 characteristic impedance (no
substitute)
BNC (m) connectors
Max Frequency: ≥ 50 MHz
3.5 mm (f) to Precision BNC (m)
3.5 mm (f) to 3.5 mm (f)
Recommended model/part #
E8257D PSG
53132A opt. 012 frequency
counter
8120-1840
54855-67604
83059B
Infiniium V-Series Oscilloscopes Service Guide