B&K Precision 4078 - Manual - Manual (Page 61)

Examples: AM:SOUR INT
AM:SOUR EXT
Query
Syntax:
[:SOURce]:AM:SOURce?
Response: INT|EXT
4.13.1.8 FM modulation
The following commands control the FM modulation:
4.13.1.8.1 FM STATe
This command activates or deactivates FM modulation:
Arguments
Type:
Boolean
Command Type: Setting or Query
Setting
Syntax:
[:SOURce:]FM[:STATe]<ws>ON|1|OFF|0
Examples: FM:STAT ON
FM OFF
Query
Syntax:
[:SOURce:]FM[:STATe]?
Response: 0|1
4.13.1.8.2 FM DEViation
This command sets the FM modulation deviation
Arguments
Type:
Numeric.
Units: MHz, KHz, Hz (default)
Range: Dependent on the carrier frequency.
Fmax = carrier frequency
Fmin = 10 uHz
Rounding: The value is rounded to 4 digits.
Command Type: Setting or Query
Setting
Syntax:
[:SOURce]:FM:DEViation<ws><frequency>[units]
[:SOURce]:FM:DEViation<ws>MINimum|MAXimum
Examples: FM:DEV 5KHZ
FM:DEV 5E3
FM:DEV MAXIMUM
FM:DEV MIN
Query
Syntax:
[:SOURce]:FM:DEViation?[<ws>MAXimum|MINimum]
Examples: FM:DEV?
FM:DEV? MAX
Response: NR3
4.13.1.8.3 FM SHAPe
This command selects the FM modulating waveform shape
Arguments
Type:
Character
Options: SINusoid, TRIangle, SQUare
Command Type: Setting or Query
Setting
Syntax:
[:SOURce:]FM:SHAPe<ws><SIN|TRI|SQU>
Examples: [:SOURce:]FM:SHPE SIN
FM:SHAPE TRI
Query