Fluke 8050A - 2-36. Decibel (dB) Operation

2-36.
Decibel
(dB)
2-3
7.
Figure
2-9
describes how to operate the
8050A
for
voltages in decibels. When
dB
is
selected, the 8050A
converts ac
or
de voltage readings into the dBm
equivalent (decibels above
or
below one milliwatt). The
reference impedance for decibel measurements
is
selected
DECIBELS
(dB)
1.
SELECT
FUNCTION---.---.
\
OPERATION
DECIBEL
from
16
stored reference impedances. The 8050A
is
setup
at
the factory to turn on with a default reference
impedance of
6000.
The power-up default reference
impedance may be changed to any
of
the
16
stored
impedances. (Refer to
Section
4 for information on how
to change the default setting.)
RELATIVE
~o
OFF
..
SELECT REFERENCE
IMPEDANCE
AND RANGE.
a.
SET
REF2
SWITCH
m.
b.
WHEN CORRECT
REFERENCE
IMPEDANCE APPEARS
IN
DISPLAY. SELECT
THE RANGE.
POWER
o~
OFF
..IL
Figure 2-9.
dB
Voltage
Operation
2-11