Keysight U1271A Guia Del Usuario página 137

To change the decibel display:
1 Press
2 Press
Figure 4-6
3 Press
4 Press
5 Press and hold
Setting a custom dBm reference impedance (U1272A only)
This setting is used with dB measurements (see
logarithmic, and is based on a calculation of power delivered to a reference
impedance (resistance), relative to 1 mW.
Parameter
dbrEF
Keysight U1271A/U1272A User's Guide
for more than 1 second to enter the multimeter's setup menu.
Setup
or
dCibEL display
or to change the decibel display. Select
Dual
E xit
Setup
measurements.
to save your changes or press
until the multimeter restarts to return to normal operation.
Setup
Range
(1 to 9999) Ω
until is shown on the secondary display.
Multimeter Setup Options
to disable dB
to discard your changes.
page 66). The dBm function is
Defaul t setting
50 Ω
4
137