Chapter 3 Message Details
3-60
:CALCulate:DATA:APR:LDSNr?
Function
This command queries the LD Module application results.
The :CALCulate:DATA:APR? command response plus the below data is
returned to this command.
Signal
Syntax
:CALCulate:DATA:APR:LDSNr?
Response Data
<numeric>,<numeric>,…,<numeric>
σ
σ
2nd Peak: Side mode wavelength (m)
2nd Peak: Side mode level (dBm)
Mode Offset: Difference between side mode
wavelength and peak wavelength (m)
SMSR: Side mode suppression ratio (dB)
Peak: Peak wavelength (m)
SNR(/*.*nm): Signal-noise ratio (noise level
per noise bandwidth) (dB)
SNR(Res **nm): Signal-noise ratio (actual
value) (dB)
Signal: Signal wavelength (m)
Signal: Signal level (dBm)
Example of Use
:CALCulate:DATA:APR:LDSNr?
>+2.37210000E-008,+3.90800000E-009,+1.35920000E-006,-1.6
4400000E+001,+8.90000000E-010,+4.12000000E+000,+1.350300
00E-006,-1.23100000E+001,+3.10100000E+001,+3.05900000E+0
01,+1.35030000E-006,-1.23100000E+001