3156B User Manual
Racal Instrument © 2005
Programming Reference 5-119
FSKWordLength
ViInt16
Defines the length of the FSK data array. This number
must match the number of shifts in the data array
Valid Range: 8 to 4096
Default: 8
FSKData
ViBoolean[]
Defines a stream of data, similar to the example above,
which will cause the 3156B to hop from carrier frequency
to shifted frequency value.
Valid Range: 0 or 1
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
"ri3156B_error_message()" will return a string describing the error.
Ri3156b_set(query)_FSK_word_rate
Description
This allows the user to select FSK word rate. The word rate is the interval of which the bit streams in the FSK
data array are clocked causing the output frequency is hop from carrier to shifted frequency values and visa
versa.
Channel Dependency: independent
C Syntax
ViStatus ri3156b_set_FSK_word_rate (ViSession instrHandle, ViReal64 FSKBaudRate)
ViStatus ri3156b_query_FSK_word_rate (ViSession instrHandle, ViReal64 * FSKBaudRate)
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.