14 U1253B User’s and Service Guide
1 Getting Started Tutorial
The secondary display annunciators are described below.
Reference impedance for the dBm unit
Scale of bar graph
Table 1- 4 Primary display annunciators
OLED Annunciator Description
Table 1- 5 Secondary display annunciators
OLED Annunciator Description
AC+DC
DC
AC
Polarity, digits, and decimal points for secondary display
Decibel unit relative to 1 mW
Decibel unit relative to 1 V
, ,
Frequency units: Hz, kHz, MHz
, ,
Resistance units: Ω, kΩ, MΩ
,
Voltage units: mV, V
, ,
Current units: μA, mA, A
Conductance unit: nS
, ,
Capacitance units: nF, μF, mF