Selecting Absolute Or Relative Mode; Setting A Reference Level - Viavi OLA-54 Operating Manual

6 T OLA-55M
HE
Selecting absolute or relative
mode
The OLA-55M can display the attenuation as an
absolute (dB) or a relative (dBr) value.
To select the display mode:
1. Press the [dB/dBr] key in the central key field to toggle
between absolute and relative display modes.

Setting a reference level

The same procedure is used to set the reference level on
the OLA-55M as on the OLA-54/-55.
Refer to „Setting a reference level", page 34
40
A
AS TTENUATOR
OLA-54/-55/-55M
for details.
Viavi