Velleman APS230 Manual page 38

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Meter readout
38
Fig 29
A ps 2 3 0 A D VA N CE D Per s o n al S c o pe
15. dBm measurement (dBm ac+dc).
The measured signal (ac+dc) is converted to
dBm (0dBm=0.775V).
16. dBG measurement (dBG ac+dc).
The gain between channels 1 and 2.
(excludes dc).
If we measure the amplification on channel 2,
the relation will be:
• Channel 1: input signal
• Channel 2: output signal
15
17. dB measurement (dB ac+dc).
The measured signal (ac+dc) is converted to
dB (0dB=dBref).
16
18. ac+dc power
AC+DC power calculation into selected impe-
dance (a normal audio signal does not feature a
17
DC component).
18
Audio power calculation.
The measured voltage is converted into
power,
supposing
measured
calculated power can be displayed for loads
of 2, 4, 8, 16 or 32 Ohm. To choose the
different loads, first highlight the power
readout and then press
that
the
voltage
across
an
impedance.
The
and key.
TM
is

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