Reference Oscillator Configuration; Reference Oscillator Source - Agilent Technologies 53220A User Manual

3 53220A/53230A Measurements

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 oscil-
lator signal must be present for measurements to occur.
The following information applies to the counter's standard temperature com-
pensated 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 com-
mands are:
[SENSe:]ROSCillator:SOURce
[SENSe:]ROSCillator:SOURce?
66
{INTernal|EXTernal}
53220A/53230A User's Guide
(query form)