4080 series Function & Arbitrary/Function Generators –Instruction Manual
41
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 <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 <frequency>
4
．
To set the modulating deviation of FM using instruction FM: DEViation <peak deviation in Hz>
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 <peak deviation in Hz>
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.
