8
Press the ‘dB/Cal’ button to
store the reference value. The
LCD will display ‘0.00dB’.
The meter is now measuring
loss.
Repeated pressing of the ‘dB/
Cal’ button again will change
between the dBm power
measurement mode and dB
loss measurement mode.
Each time the meter enters
the dB mode it stores the
current power level as a new reference level. Once the calibration value is set,
do not toggle out of the dB mode. Otherwise it will be necessary to perform the
calibration step again.
The meter does not store a separate reference value for each wavelength.
When changing wavelengths repeat the jumper reference procedure.
3.00
dB
850
nm
-
0.00
dB
850
nm
-
Disconnect the two
reference jumpers and
connect to the cabling
under test. The meter will
display the total loss of all
components between the
two reference jumpers.
Содержание 33-928
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