Displaying Modulated Signals; Enabling Auto-Lambda Mode - Viavi SmartPocket OLP-35V2 Operating Manual

4 O
PERATION
D
ISPLAYING MODULATED SIGNALS
NOTE:
NOTE:
24

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.
The OLP-3xV2 can automatically detect the modulation
frequency only if no Auto- was detected (see "Enabling Auto-
Lambda mode" on page 24 ).

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.
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.
OLP-35V2/-35SC/-38V2