3156B User Manual
Programming Reference 5-124
Racal Instrument © 2005
VI_SUCCESS, otherwise it will return an error code. Passing the error code into the function
"ri3156B_error_message()" will return a string describing the error.
Ri3156b_set(query)_AM_mod_freq_div
Description
Programs a frequency divider for the modulating waveform. The ratio parameter divides the carrier frequency.
The divider accepts integers only. The resultant value is used as the frequency of the modulating waveform.
Note, however, that it is possible to program the modulating frequency directly, using the
ri3156B_set_AM_mod_freq() parameter. The 3156B will accept the last parameter sent to it and therefore
refrain from sending two parameters as only the last will be accepted.
This allows the user to program the modulation frequency. Note, however, that it is possible to program the
modulating frequency using the parameter. The 3156B will accept the last parameter sent to it and therefore
refrain from sending two parameters as only the last will be accepted.
Channel Dependency: independent
C Syntax
ViStatus ri3156b_set_AM_mod_freq_div (ViSession instrHandle, ViInt16 AMModulationFrequencyDivider)
ViStatus ri3156b_query_AM_mod_freq_div (ViSession instrHandle, ViInt16 * AMModulationFrequencyDivider)
Parameters
Name
Variable
Type
Description
instrHandle
ViSession
The Instrument Handle is used to identify the unique
session or communication channel between the driver
and the instrument. If more than one instrument of the
model type is used, this will be used to differentiate
between them. Note that the initialize function may be
used to associate multiple instrument handles with a
single instrument.
AMModulationFrequencyDivider
ViInt16
Programs the frequency divider ratio for the modulating
frequency parameter.
Valid range: 2 to 4096
Default: 100
Return Values
Displays the return status of the function call. If the function was successful, it will return a status of
VI_SUCCESS, otherwise it will return an error code. Passing the error code into the function
Содержание 3156B
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