YOKOGAWA AQ6370D - Page 223

7-48
IM AQ6370D-01EN
Explanation
Go/No Go Judgment
The following are the three types of template.
• Upper limit line
• Lower limit line
• Target line
Upper and lower limit lines are used for Go/No Go judgment. For target line only, the
function displays the targeted spectrum on the measurement screen without comparing it
to the measured waveform.
Upper Limit Line Judgment
-70
-50
-30
-10
10
1547.5 1550 1552.5
REF
PASS
Wavelength (nm)
Level (dBm)
Upper Limit Line
Judgment result
Judgment conditions
(measured data) <= (upper limit line) -> Go (PASS)
(upper limit line) < (measured data) -> No Go (FAIL)
Lower Limit Line Judgment
-70
-50
-30
-10
10
1547.5 1550 1552.5
REF
FAIL
Level (dBm)
Wavelength (nm)
Lower Limit Line
Judgment conditions
(measured data) <= (upper limit line) -> Go (PASS)
(upper limit line) < (measured data) -> No Go (FAIL)
7.12 Go/No-Go Judgment (Template)