Keysight 53230A - Reference Oscillator Configuration

3 53220A/53230A Measurements
78 Keysight 53220A/53230A User’s Guide
Reference Oscillator Configuration
53220A and 53230A measurements are based on a reference oscillator - also
referred to as an internal/external clock or time base. A valid reference oscillator
signal must be present for measurements to occur.
The following information applies to the counter’s standard temperature
compensated crystal oscillator (TCXO) and Option 010 Ultra High-Stability
oven-controlled crystal oscillator (OCXO) references.
Reference oscillator source
The reference oscillator (time base) is either the counter’s internal oscillator or the
internal oscillator tuned to an external reference. The source commands are:
[SENSe:]ROSCillator:SOURce {INTernal|EXTernal}
[SENSe:]ROSCillator:SOURce? (query form)
[SENSe:]ROSCillator:SOURce:AUTO {OFF|ON}
[SENSe:]ROSCillator:SOURce:AUTO? (query form)