Anritsu MS9740A - Page 99

3.4 Device Message Details
3-53
3
Message Details
When executing the WDM application (SNR)
No.
Parameter type
Description
1
<numeric>
Peak Count
2
<numeric>
Wl: First peak wavelength (m)
3
<numeric>
Level: First peak level (dBm)
4
<numeric>
SNR: First signal to noise ratio (dB)
5
<switch> =
AVERAGE|
LEFT|RIGHT|
ERR|FITTING
L/R: First noise detection method
ERR when noise position off screen at
noise detection
FITTING when Noise Parameter
Detection Type is Area
:
4n–2
<numeric>
Wl: n th peak wavelength (m)
4n–1
<numeric>
Level: n th peak level (dBm)
4n
<numeric>
SNR: nth peak signal to noise ratio (dB)
4n+1
<switch>=
AVERAGE|
LEFT|RIGHT|
ERR|FITTING
L/R: nth peak noise detection method
ERR when noise position off screen at
noise detection
FITTING when Noise Parameter
Detection Type is Area
When executing the WDM application (Relative)
No.
Parameter type
Description
1
<numeric>
Peak Count
2
<numeric>
Ref: Reference peak number
3
<numeric>
Wl: First peak wavelength (m)
4
<numeric>
Spacing: Spacing of first peak wavelength
(m)
5
<numeric>
Wl-Ref: Wavelength difference between
first peak and reference peak (m)
6
<numeric>
Level: First peak level (dBm)
7
<numeric>
Level-Ref: First relative level (dB)
:
5n–2
<numeric>
Wl: nth peak wavelength (m)
5n–1
<numeric>
Spacing: Spacing of nth peak wavelength
(m)
5n
<numeric>
Wl-Ref: Differences between nth peak
and reference peak wavelength (m)
5n+1
<numeric>
Level: nth peak level (dBm)
5n+2
<numeric>
Level-Ref: nth relative level (dB)
The first peak wavelength spacing is normally 0.