Keysight 81150A - Start Frequency and Stop Frequency

Appendix
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3.12.2 Start Frequency and Stop Frequency
Introduction
The start frequency and stop frequency set the upper and lower frequency
bounds for the sweep. The 81150A / 81160A begins at the start frequency,
sweeps to the stop frequency, and then resets back to the start frequency
Characteristics
 Start and Stop frequencies:
81150A: 1 µHz to 240 MHz.
81160A: 1 µHz to 500 MHz.
The sweep is phase continuous over the full frequency range. The
default start frequency is 100 Hz. The default stop frequency is 1 kHz.
 To sweep up in frequency, set the start frequency < stop frequency.
 To sweep down in frequency, set the start frequency > stop
frequency.
 For sweeps with Marker Off, the Strobe Out signal is a square
waveform with a 50% duty cycle. The Strobe Out signal is a “high” at
the beginning of the sweep and goes “low” at the midpoint of the
sweep. The frequency of the Strobe Out waveform is equal to the
specified sweep time. The signal is output from the front-panel
Strobe Out connector.
 For sweeps with Marker On, the Strobe Out signal is a “high” at the
beginning of the sweep and goes “low” at the marker frequency. The
signal is output from the front-panel Strobe Out connector.
 Voltage level at Strobe Out can be configured at TTL, ECL or 2V
levels.
 Start and Stop Frequency are limited by the output function and
amplifier type.
Front-Panel
Operation
After enabling sweeps, press the Start Frequency or Stop Frequency
softkey. Then use the knob or numeric keypad to enter the desired
frequency.
Remote Interface
Operation
:FREQuency[1|2]:STARt{<frequency>|MINimum|
MAXimum}
:FREQuency[1|2]:STOP {<frequency>|MINimum|MAXimum}