Features and Functions 3
Keysight 33210A User’s Guide 107
Center Frequency and Frequency Span
If desired, you can set the frequency boundaries of the sweep using a center
frequency and frequency span. These parameters are similar to the start
frequency and stop frequency (see the previous page) and are included to give
you added flexibility.
– Center frequency: 1 mH
z to 10 MHz
(limited to 100 kHz for ramp waveforms).
The default is 550 Hz.
– Frequency span: 0
Hz to 10 MHz
(limited to 100 kHz for ramp waveforms). The
default is 900 Hz.
–To sweep up in frequency, set a positive frequency span.
To sweep down in frequency, set a negative frequency span.
–For sweeps with Marker Off, the Sync signal is a square waveform with a 50%
duty cycle. The Sync signal is a TTL “high” at the beginning of the sweep and
goes “low” at the midpoint of the sweep. The frequency of the sync waveform
is equal to the specified sweep time. The signal is output from the front-panel
Sync connector.
– For sweeps with Marker On, the Sync signal is a TTL “high” at the beginning of
the sweep and goes “low” at the marker frequency. The signal is output from
the front-panel Sync connector.
– Front-Panel Operation: After enabling sweeps, press the Start or Stop softkey
again to toggle to the Center or Span softkey. Then use the knob or numeric
keypad to enter the desired values.
– Remote Interface Operation:
FREQuency:CENTer {<frequency>|MINimum|MAXimum}
FREQuency:SPAN {<frequency>|MINimum|MAXimum}
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