Ceyear 1465 Series, Programming Manual

Page: 81 / 143

3 SCPI
3.3 Instrument subsystem command
74
【 FM/ΦM 】 —>[Dual Sinc]—>[Frequency1]
[:SOURce]:FM:INTernal:FREQuency:ALTernate <Frequency>
Function: This command is used for setting the second tone when FM waveform is set to DualSinc,
or the stop frequency when FM waveform is set to SweepSinc. For FM waveform, see
the command ―
:FM:INTernal:SHAPe
‖.
Setting format: [:SOURce]:FM:INTernal:FREQuency:ALTernate <.val>
Query format: [:SOURce]:FM:INTernal:FREQuency:ALTernate?
Parameter:
<Frequency> The frequency ranges of different FM waveforms are:
Sweep sine: [0.02Hz
，
1.000000000MHz],
Dual sine: [0.02Hz
，
1.000000000MHz],
Example: :FM:INTernal:FREQuency:ALTernate 500kHz
Set alternate frequency to 500kHz.
Key Entry:
【 FM/ΦM 】 —>[SweepSinc]—> [Freq Stop]
【 FM/ΦM 】 —>[Dual Sinc]—>[Frequency2]
[:SOURce]:FM:INTernal:FREQuency:ALTernate:AMPLitude:PERCent<Pert>
Function: This command is used for setting the percentage of amplitude of second tone to that of
total output signal in dual sine waveform when FM Waveform is set to DualSinc. For
example, if the second tone accounts for 20% of the total waveform power, the first
tone will account for 80% of the total power output.
Setting format: [:SOURce]:FM:INTernal:FREQuency:ALTernate:AMPLitude:PERCent <val>
Query format: [:SOURce]:FM:INTernal:FREQuency:ALTernate:AMPLitude:PERCent?
Parameter:
<Pert> Amplitude percentage of frequency 2 when FM Waveform is set to DualSinc.
Range: 50[0
，
100].
Example: :FM:INTernal:FREQuency:ALTernate:AMPLitude:PERCent 20
Set the percentage of second waveform of dual sine to the total signal output power to 20%.
Reset status: 50
Key Entry:
【 FM/ΦM 】 —>[Dual Sinc]—> [Freq 2 Ampl Percent]
[:SOURce]:FM:INTernal:NOISe <Mode>
Function: This command is used for setting signal output types when FM Waveform is set to White
noise, which includes: While noise and Gauss. For setting FM Waveform, see the
command ―
:FM:INTernal:SHAPe
‖.
Setting format: [:SOURce]:FM:INTernal:NOISe UNIForm|GAUSsian
Query format: [:SOURce]:FM:INTernal:NOISe?
Parameter:
<Mode> Discrete data. Options for signal output type when FM Waveform is set to White noise:
UNIForm White noise,
GAUSsian Gauss.