Racal Instruments 3162A/B, User Manual

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User Manual 3162A/B
Using The Instrument 3-10
Changing the
Frequency and
Sample Clock
Use the following command to change the frequency for standard waveforms:
FREQuency {<frequency> | MINimum | MAXimum}
MIN selects the lowest frequency allowed for the currently active function. MAX
selects the highest frequency allowed for the currently active function. The
default frequency setting is 1 MHz for all parameters.
The query:
FREQuency?
queries the frequency setting for the standard function currently active and
returns a value in hertz.
The command:
FREQuency:RASTer {<frequency> | MINimum |MAXimum}
sets the sample clock frequency for the user and sequenced mode
parameters. MIN selects the lowest frequency allowed for the currently active
segment or sequence. MAX selects the highest frequency allowed for the
currently active segment or sequence. The default sample clock frequency
setting is 1 MHz for all parameters.
Note that the output frequency depends on the number of points specified in
the waveform. The output frequency can be computed using the following
formula: Output Frequency = Sample Clock / Number of points in the active
segment.
The query:
FREQuency:RASTer?
queries the sample clock frequency setting for the arbitrary segment or
sequence currently active and returns a value in Hertz.
Controlling
Synthesizer Agility
Use the following commands to select the control mode for the frequency
synthesizer:
FREQuency:MODE {NORMal | FSK | HOP}
In NORM mode, the selected output function is generated continuously with
the programmed frequency parameter. FSK places the Model 3162B in
frequency shift keying FSK mode. HOP selects frequency-hopping mode,
where the generator can hop between various frequencies, as programmed in
the hop table.
The query: