CMU Audio Generator and Analyzer (Option CMU-B41)
1100.4903.12 4.91 E-10
measurement of the AC component. The DC component, how-
ever, can not be measured.
DC Measurement of the complete AF input signal (DC plus AC com-
ponents).
Note: The AF path coupling has an impact on the allowed filter settings; see
section Input Path Configuration (Multitone Configuration – Filter) on p.
4.94 f.
Remote control
CONFigure:MULTitone:AFxChannel:COUPling AC | DC
(x = 1,2)
AF Generator
Lead
AF Generator Lead defines a settling time for the measurement to be applied after
a change of the generator settings. A small value accelerates the measurement but
may impair its accuracy.
Remote control
CONFigure:MULTitone:AFxChannel:AFGLead <Time> (x = 1,2)
AF Ref. Level
AF Ref. Level defines an audio reference level. The reference level is entered as
an RMS voltage (in mV) and defines the 0 dB line of the test diagram provided that
Relative to Ref. Lev. is selected as Result (see below).
Remote control
CONFigure:MULTitone:AFxChannel:RLEVel <Voltage> (x = 1,2)
Result
The Result function defines the reference value for all measurement results. This
corresponds to the 0 dB reference line in the diagram.
Relative to Ref. Lev. All results are referenced to the AF Ref. Level; see
above
Relative to Tone 1 All results are referenced to the measurement
result at tone 1 (if available)
...
Relative to Tone 20 All results are referenced to the measurement
result at tone 20 (if available)
The measurement is taken at up to 20 audio frequencies (tone 1 to 20) which can
be defined and switched on or off in the Tone Def. tab of the configuration menu
(see page 4.93 ff.).
Remote control
CONFigure:MULTitone:AFxChannel:RMODe RLEV | TON<nr>
(x = 1,2)
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