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Test Settings

The Multitone measurement can be configured by means of the softkeys and hotkeys in the graphical measurement menu.

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 selected.

 

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 Configuration (see Measurement Control (Audio Multitone Configuration - Control)). Besides, a number of hotkeys defining the scope of the measurement are associated with the AF Chan. One softkey. All settings are also provided in the Control tab of the Multitone Configuration menu; see section Measurement Control (Audio Multitone Configuration - Control).
   

Application

 The Application softkey activates one of the applications of the Multitone measurement. The two applications represent two independent audio circuits. Both circuits are identical except for the input and output connectors. Configurations such as the input path (Analyzer Level) can be set independently. Changing the application 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 input) 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 independent 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).
 

Remote control
[SENSE:]AFLevel:<Applic>:MAXimum <Level>
[SENSE:]AFLevel:SECondary:MAXimum <Level>

   

AF Mode

 The AF Mode hotkey determines how the input level is defined.
   
Manual Manual input via AF Max. Level hotkey
   
Auto Automatic setting according to the average power of the applied AF signal.
   
  Two independent values can be set for the two applications AF Chan. One (Analyzer 1) and AF Chan. Two (Analyzer 2).
  Note:
The AF Mode setting supersedes the corresponding setting in the Control tab of the Analyzer Configuration menu; see section Measurement Control (Analyzer Configuration - Control).
 

Remote control
[SENSE:]AFLevel:<Applic>:MODE MANual | AUTomatic
[SENSE:]AFLevel:SECondary:MODE MANual | AUTomatic

   

Generator
Level

 The Generator Level softkey defines the level of the AF multitone signal.

The generator level settings are described in more detail in section Test Tones (Multitone Configuration - Tone Def.).

   

Display

 The Display softkey scales or shifts the graphical display.
   

Level Scale

 The Level Scale hotkey defines the level scale of the Multitone test diagram (ordinate scale). The level scale merely represents a display configuration that doesn't have any impact on the measurement or on the input signal path.

The level scale is calculated from a maximum value (Max.) and a Span:

  • The Max value defines the upper edge of the diagram.
  • The difference Max - Span defines the lower edge of the diagram.
  • The number of horizontal grid lines (corresponding to 10, 15, or 16 cells) and the ordinate labeling is adapted to the range.
 

Remote control
no remote control command; screen configuration only

   

Tone Scale

 The Tone Scale hotkey selects the display range (abscissa scale) of the test diagram. The range comprises 14 test tones which must be in consecutive order. This condition leaves the following options:
   
  Tone 1 to 14 ....

Display all results between tone 1 and tone 14

   
  Tone 7 to 20

Display all results between tone 7 and tone 20

   
  If a tone is within the selected range but disabled in the Tone Def. tab of the configuration menu (see section Test Tones (Multitone Configuration - Tone Def.)), the corresponding result is not indicated, i.e. the bar is omitted and a gap occurs in the test diagram.
 

Remote control
no remote control command; screen configuration only

   

Default Scale

 The Default Scale hotkey cancels all display configurations made and activates the default settings.
 

Remote control
no remote control command; screen configuration only

   

Menus

 The Menus softkey displays the hotkey bar for switching over to the other measurement menus.

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