Anritsu MS9740A - Calculate:data

3.4 Device Message Details
3-41
3
Message Details
:CALCulate:DATA?
Function
This command queries the results measured by the analysis function or
application executed last.
Syntax
:CALCulate:DATA?
Response Data
For details on response data of the respective applications, refer to the
following descriptions:
When executing the spectrum analysis using Threshold, Envelope or
RMS method
No.
Parameter type
Description
1
<numeric>
Center wavelength (m|Hz)
2
<numeric>
Spectrum width (m|Hz)
3
<numeric>
Longitudinal mode count
When executing the spectrum analysis using Threshold or Envelope
method, the third parameter is always –999.99.
When executing the DFB-LD application
No.
Parameter type
Description
1
<numeric>
kσ: Spectrum width used by RMS method
(m)
2
<numeric>
Peak: Peak wavelength (m)
3
<numeric>
Peak: Peak level (dBm)
4
<numeric>
Mode Offset: Difference between side mode
wavelength and peak wavelength (m)
5
<numeric>
SMSR: Side mode suppression ratio (dB)
When executing the FP-LD application
No.
Parameter type
Description
1
<numeric>
FWHM: Spectrum width using RMS method
(m)
2
<numeric>
Peak: Peak wavelength (m)
3
<numeric>
Peak: Peak level (dBm)
4
<numeric>
Mean Wl: Center wavelength (m)
5
<numeric>
Total Power: Spectrum integral power
(dBm)
6
<numeric>
Mode (n dB): Number of longitudinal modes