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Making Measurements 3 - 11
dBm AC (decibel milliwatt) Measure the power ratio of
the AC component of a signal with respect to 1 mW in
Meter mode. This is done with DC-coupled input.
dBm AC (no DC) (decibel milliwatt) Measure the power
ratio of the AC and DC components of a signal with respect
to 1 mW in Meter mode. This is done with AC-coupled
input so that the DC signal component is blocked and the
range is optimized for the AC sinal component.
dBW AC+DC (decibel Watt) Measure the power ratio of
the AC and DC components of a signal with respect to 1W
in Meter mode. This is done with DC-coupled input.
dBW AC (no DC) (decibel Watt) Measure the power ratio
of the AC component of a signal with respect to 1W in
Meter mode. This is done with AC-coupled input so that the
DC signal component is blocked and the range is
optimized for the AC sinal component.
WATT AC+DC Measure the AC and DC audio watts from
the signal in Meter mode. This is done with DC-coupled
input. You can choose 1, 2, 4, 8, 16, or 50Ω as reference
impedance.
WATT AC (no DC) Measure the AC audio watts from the
signal in Meter mode. This is done with AC-coupled input
so that the DC signal component is blocked and the range
is optimized for the AC sinal component. You can choose
1, 2, 4, 8, 16, or 50Ω as reference impedance.
For dBV, dBm and dBW, you can select a range of
references by pressing or .
dBV: Choose a voltage between 50 mV and 9.99V. The
default value is 1V.
dBm: Choose one of the following reference impedances:
50, 60, 75, 93, 110, 125, 135, 150, 250, 300, 500, 600, 800,
900, 1000, or 1200Ω.
dBW: Choose one of the following references: 1, 2, 4, 8,
16, or 50Ω.
Additional measurements for the Scope mode
t1 from TRIG Measure the time difference between the
trigger occurrence and the left cursor.
t2 from TRIG Measure the time difference between the
trigger occurrence and the right cursor.
V1 Measure the voltage amplitude where the left cursor
crosses the waveform.
V2 Measure the voltage amplitude where the right cursor
crosses the waveform.
phase Measure the phase shift between two waveforms. A
maximum of three phase shift measurements between the
reference waveform and three other waveforms are possible.