Audio Generator and Analyzer (Option CMU-B41) CMU
1100.4903.12 4.86 E-10
AF Chan.
One
The AF Chan. One softkey controls the Multitone measurement and indicates its
status (RUN | HLT | OFF). This status can be changed after softkey selection
(pressing once) by means of the ON/OFF key or the CONT/HALT key.
AF Chan. One changes to AF Chan. Two if the corresponding application is se-
lected.
Remote control
INITiate:MULTitone:AFxChannel; ABORt:MULTitone:AFxChannel;
STOP:MULTitone:AFxChannel; CONTINUE:MULTitone:AFxChannel
FETCh:MULTitone:AFxChannel:STATus? (x = 1,2)
Measurement
configuration
Pressing the AF Chan. One softkey twice opens the popup menus Multitone Con-
figuration (see page 4.89). Besides, a number of hotkeys defining the scope of the
measurement are associated to the AF Chan. One softkey. All settings are also
provided in the Control tab of the Multitone Configuration menu; see section
Measurement Control (Multitone Configuration – Control) on page 4.89.
Application
The Application softkey activates one of the applications of the Multitone meas-
urement. The two applications represent two independent audio circuits. Both cir-
cuits are identical except for the input and output connectors. Configurations such
as the input path (Analyzer Level) can be set independently. Changing the applica-
tion will also change the measurement control softkey AF Chan. One / AF Chan.
Two.
AF Chan.
One
The AF Chan. One hotkey selects the Multitone measurement on channel one.
This means that the audio signals are applied to the connectors AF IN (CMU input)
and AF OUT (CMU output) on the front panel.
Remote control
Audio channel no. one is identified by the third-level keyword AF1Channel.
AF Chan.
Two
The AF Chan. Two hotkey selects the Multitone measurement on channel two.
This means that the audio signals are applied to the connectors AUX 1 (CMU in-
put) and AUX 2 (CMU output) on the CMU front panel.
Remote control
Audio channel no. two is identified by the third-level keyword AF2Channel.
Analyzer
Level
The Analyzer Level softkey controls the level in the AF input signal path for both
applications of the Multitone measurement.
AF Max.
Level
The AF Max. Level hotkey sets the maximum expected input level in mV. Two in-
dependent values can be set for the two applications AF Chan. One (Analyzer 1)
and AF Chan. Two (Analyzer 2). The setting is applied if the AF Mode (see softkey
below) is set to Manual.
Note: The AF Max. Level setting supersedes the corresponding level set in
the Control tab of the Analyzer Configuration menu; see section
Measurement Control (Analyzer Configuration – Control) on p. 4.81 f.
Remote control
[SENSE:]AFLevel:<Applic>:MAXimum <Level>
[SENSE:]AFLevel:SECondary:MAXimum <Level>
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