GW Instek GSP-830 User Manual - Manual (Page 101)

BANDWIDTH
101
Set Sweep time
Background Sweep time defines the display update rate. Note that
sweep time and RBW/VBW are in trade-off. Faster
sweep time updates display more frequently but makes
RBW and VBW wider, reducing the capability to
separate signals at close frequencies.
Panel operation 1. Press the BW key.
BW
2. Press F3 (Swp tm) To switch
between Auto and Manual
setting.
Swp Tm
Auto Man
F 3
In the Manual mode, the manual sweep time
icon appears.
3. When Manual mode is selected,
enter the sweep time using the
Numerical/Unit keys.
BK SP
dB
Enter
GHz / Sec
mSec MHz /
kHz / Sec μ
Mode Auto Sweep time is automatically set.
Manual Sweep time is manually set.
Range 50ms to 25.6s, 1us resolution
Note When in the Auto mode, GSP830 is optimized for fast
sweep time. For narrower RBW settings, like 300 Hz or
3 KHz, this optimization will cause slightly higher phase
noise. To reduce the phase noise level, slow down the
sweep time using manual setting.
Average Waveform
Background The GSP-830 averages the waveform for a user-defined
or system-defined number before it is displayed. This
feature smoothes the noise level to a great extent, but
slows down the display update rate.
Panel operation
(Method1) 1. Press the BW key.
BW