GW Instek GSP-830 User Manual - Manual (Page 89)

POWER MEASUREMENT
89
Phase Jitter Measurement
Background Phase Jitter refers to the amount of phase fluctuation
that leads to shortening or lengthening the center
frequency.
Parameter Start offset Beginning frequency offset in reference to
the center frequency.
0kHz to ½ of span, 0.1MHz resolution
Stop offset End frequency offset in reference to the
center frequency.
0kHz to ½ of span, 0.1MHz resolution
1. Press the Measurement key.
Meas
1. Activate Phase
Jitter
2. Press F6 (More).
More F 6
3. Press F3 (Phase Jitter On).
Phase Jitter
On Off
F 3
4. The display switches to Phase jitter mode, updating
Phase jitter result in the lower half of the display.
Phase
fluctuation
Time
fluctuation
2. Set start/stop
offset
1. Press F4 (Phase Jitter Setup).
Phase Jitter
Setup
F 4
2. Press F1 (Start Offset) and F2
(Stop Offset) to set the amount
of the beginning and end offset.
Start
Offset
F 1
Stop
Offset
F 2
3. Enter the offset using the
Numerical/Unit keys.
Range: 0kHz to ½ of span
BK SP
dB
Enter
GHz / Sec
mSec MHz /
kHz / Sec μ