Racal Instruments 3155, Руководство пользователя

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User Manual 3155
Programming Reference 4-33
FREQuency:RASTer{<sclk>|MINimum|MAXimum}
Purpose
This command modifies the sample clock frequency of the arbitrary waveform in units of samples per second
(S/s). It has no affect on standard waveforms.
•
<sclk> sets the sample clock frequency
•
<MINimum> sets the sample clock frequency to its lowest value
•
<MAXimum> sets the sample clock frequency to its highest value
Parameter type
Numeric
Parameter range
<sclk> 100e-3 to 100e6
FREQuency:RASTer?
Response and default
The 3155 returns the present sample clock frequency value. The returned value is in standard scientific for-
mat (for example: 100MHz would be returned as 100E6 – positive numbers are unsigned). Default value is
10e6.
FSK:FREQuency:RASTer<FM_sclk>
Purpose
This command sets the shift sample clock frequency. When set to operate in FSK mode, the 3155 hops back
and forth to and from the carrier sample clock frequency to the shifted sample clock frequency.
•
<FSK_sclk> sets the shifted sample clock frequency for the FSK mode
Parameter type
Numeric
Parameter range
<FSK_sclk> 100e-3 to 100e6 in units of samples per second