24
OLP
-
35V2/
-
35SC/
-
38V2
4 O
PERATION
D
ISPLAYING
MODULATED
SIGNALS
Displaying modulated signals
The OLP-3xV2 automatically detects the modulation frequency
of light signals modulated at the fixed frequencies (270 Hz,
330 Hz, 1 kHz, 2 kHz) and CW (constant wave). The detected
frequency is shown in the lower center display pane.
NOTE:
The OLP-3xV2 can automatically detect the modulation
frequency only if no Auto-
was detected (see
Enabling Auto-Lambda mode
Auto-
is a special feature developed by Viavi that allows you to
identify wavelengths automatically. To do this, the signal is
modulated at a certain frequency (by a light source equipped
with Auto-
such as a Viavi OLS-3xV2), which can be detected by
a Viavi OLP-3xV2.
Wavelengths may not be reliably detected in following
situations:
• The received level is too low.
• Due to interferences.
• You are measuring the absolute level of a system that does not
have wavelength encoding that matches Viavi power sources.
NOTE:
The Auto-
function can be disabled in order to prevent an
incorrect wavelength detection while measuring “In-Service”
systems.
To switch Auto-
mode on/off:
1.
Long press [MODE] to open the settings menu.
2.
Use
[
]
/
[
]
to select Auto-
.
3.
Press [
] to switch Auto-
on/off.
If Auto-
mode is activated and an optical source supporting
Auto-
is connected, AUTO-
is shown in the lower left display.
