Viavi T-BERD 6000A V2, Руководство пользователя

Страница: 46 / 188

Chapter 5 Power meter, VFL (Visual Fault Locator) & Talkset
Using the Power meter
26 User Manual 76100000200 Rev. 001
Attenuator compensation
Choice of level to be applied to the wavelength
chosen for measurement to compensate for the
loss due to the external attenuator (+XX.XX dB).
First use the direction keys to choose the
wavelength, then press > to access choice of
value.
Configuring the
alarm parameters
of the power meter
Alarm Activation of the Alarm function : any result below
the lower threshold or above the upper threshold
will be displayed in red on the
Results page.
Min and max thresholds
Choice of lower and upper thresholds for each
available wavelength, from -60 to +40 dBm.
Display of
results and
commands
The results page called up by the R
ESULTS
button , gives the information
relating to the measurement in progress, results previously saved and
the commands available for measurement and saving.
Result of the
measurement in
progress
The power measured by the power meter is displayed in large charac-
ters, in the units selected in the
S
ETUP
menu, together with:
– the mode of transmission of the signal measured: continuous (CW)
or modulated to a frequency of 270Hz, 330Hz, 1KHz, or 2KHz.
– the wavelength of the signal measured.
– the reference level expressed in dB.
– the level of Attenuation Compensation.
NOTE
To copy a Reference Level or a Attenuator Compensator on all wave-
lengths, select the reference wavelength and click on
Update for All
Wavel. .
NOTE
To copy one value of the Lower or/and Upper threshold for all wave-
lengths, select the reference value and click on
Update for All
Wavel. .
NOTE
A continuous push on direction keys increments the value by 10 dBm.