Keysight U1273A Manual De Instrucciones página 66

2 Making Measurements
Displaying dBV values
To set the multimeter to display voltage values in dBV, first change the dB
(decibel) display from dBm to dBV in the setup menu. See
display"
This change is permanent. To set the multimeter to display voltage values in
NOTE
dBm again, you will need to change the dB display from dBV back to dBm in the
setup menu.
Next, set up your multimeter to measure voltage as shown in
Figure
voltage measurements are displayed as a dBV value.
Table 2-6 Rotary switch positions allowing dBV measurements
Legend Defaul t function
AC V
AC mV
DC V
DC mV
A dBV measurement uses a 1 volt reference voltage to compare the present
NOTE
measurement against a stored relative value. The difference between the two AC
signals is displayed as a dBV value. The reference impedance setting is not part
of a dBV measurement.
66
on page 133 to learn more.
2-5. Probe the test points, and read the display. Then, press
is pressed
Function when
AC V with LPF
AC mV with LPF
Cycles between
– AC V,
– AC+DC V, or
– DC V
Cycles between
– AC mV,
– AC+DC mV, or
– DC mV
Keysight U1273A/U1273AX User's Guide
"Changing the decibel
Figure 2-2 or
until the
Dual
Exit