User`s manual

[SOURce:]ROSCillator
The [SOURce:]ROSCillator subsystem controls the reference oscillator’s source and
indicates the frequency of an external oscillator. The Agilent E1445A uses the
source and frequency information to generate sample output rate for arbitrary
waveforms or waveform frequency for ramp, sine, square, and triangle wave output.
Subsystem Syntax [SOURce:]
ROSCillator
:FREQuency
:EXTernal <
frequency>
:SOURce <
source>
:FREQuency:EXTernal
[SOURce:]ROSCillator:FREQuency:EXTernal <frequency> indicates to the
Agilent E1445A the frequency of an external reference oscillator source. The
[SOURce:]FREQuency[1] and [SOURce:]FREQuency2 subsystems use this value to
generate sample rate and waveform frequencies when
[SOURce:]ROSCillator:SOURce is set to EXTernal or ECLTrgn.
Parameters
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
<
frequency> numeric 1 Hz through 42.94967296 MHz |
MINimum | MAXimum
Hz
MINimum selects 1 Hz; MAXimum selects 42.94967296 MHz.
Comments • Indicating an incorrect frequency for an external reference oscillator will cause
incorrect sample rate and waveform frequencies to be generated by the
[SOURce:]FREQuency[1] and [SOURce:]FREQuency2 subsystems.
• Executable when Initiated: Query form only
• Coupling Group: Frequency
• *RST Condition: SOURce:ROSCillator:FREQuency:EXTernal 42.94967296 MHz
Example Specifying the External Reference Oscillator Frequency
ROSC:FREQ:EXT 5 MHZ External oscillator is 5 MHz.
[SOURce:]ROSCillator
370 Command Reference Chapter 8