B&K Precision 4084-4087 - Manual User Manual
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4080 series Function & Arbitrary/Function Generators –Instruction Manual
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4．To set the modulation depth of AM using AM: DEPTh {depth in percent} instructions
5．To set modulating source of AM using AM: SOURce {INTernal|EXTernal} instructions
6．To start AM using AM: STATe ON instructions.
AM: DEPTh {depth in percent}
Set modulation depth of AM. MIN=1%, MAX=120%.
AM: DEPTh?
Read the current modulation depth of AM.
AM:INTernal:FUNCtion {SINusoid|SQUare|TRIangle……}
Set the modulating waveform for AM
,using modulating waveforms SIN, SQU, TRI UP, RAMP and
DOWN_RAMP.
AM:INTernal:FUNCtion?
Check current modulating waveform of AM. Return parameters are “SIN”, “SQU”, TRI”,
“UP_RAMP”, “DOWN_RAMP”
AM:INTernal: FREQuency
Set frequency of modulating signal of AM. When internal modulating source is selected, the
modulating frequency should be≤10kHz.
AM:INTernal:FREQuency?
Read the frequency of the current modulating signal for AM.
AM:SOURce {INTernal|EXTernal}
Set modulating source of modulating signal of AM as internal (INTernal) or external (EXTernal).
AM:SOURce?
Read the current modulating source of AM.
AM:STATe {ON|OFF}
Turn AM mode on/off
AM:STATe?
Check the “on/off” state of AM mode. The returned data are “0” (OFF) or “1” (ON).In “off” state,
the instrument reverts back to fixed frequency mode.
FM instructions
1．To set the carrier of output using APPLy or FUNCtion, FREQuency, VOLTage, VOLTAGE:
OFFSet instructions.
2．To set modulating waveform of FM using FM: INTernal: FUNCtion
{SINusoid|SQUare|TRIangle……} instructions
3．To set modulating frequency of FM using instruction FM:INTernal: FREQuency
4．To set the modulating deviation of FM using instruction FM: DEViation
5．To set modulating source of FM using the FM: SOURce {INTernal|EXTernal} instruction
6．To start FM using FM: STATe ON instruction.
FM:DEViation
Set the modulating deviation of FM. The maximum value should be half of carrier frequency in
internal modulating source and 10% of carrier frequency in external modulating frequency. (Should
also satisfy the following equation: F
c
+ F
d
<= F
max
+100khz
FM:DEViation?
Read the current modulating deviation of FM.