Operation Manual

Using Your OTDR as a Light Source

OTDR 73

Modulating the Source Signal

When you turn the unit on, the signal is continuous (unmodulated) by

default. When you switch wavelengths, the modulation remains the same.

Modulation is indicated in the Source pane.

Available values are: Continuous, 270 Hz, 1 kHz, 2 kHz, 270 Hz blink, 1 kHz

blink, or 2 kHz blink.

To change the signal modulation:

1. Activate the source if you want.

2. Press Modulation (F1/F2 key) to switch

between available modulations.

Use the arrows to open the list and select the

desired modulation.