The basic settings for the Audio measurement are directly accessible from the measurement menu via softkey/hotkey combinations. The entry of values is described in section Measurement Menu (Power) - Test settings.
Many of the basic settings are also accessible from the Analyzer Configuration popup menu. They are explained in more detail in section Measurement Configurations (Analyzer Configuration).
| Analyzer 1 |
The Analyzer 1/2 softkey (which changes to Analyzer 2, depending on the application selected) controls the audio measurement (RUN / HLT / OFF) and indicates its status. This status can be changed after softkey selection (pressing once) by means of the ON/OFF key or the CONT/HALT key. The status can be set independently for all Audio applications. |
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Remote control |
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| Measurement configuration |
Pressing the Analyzer softkey twice opens the popup menu Analyzer Configuration. Besides, the measurement control softkey provides hotkeys to define the scope of the measurement. All these settings are described in more detail in section Measurement Control (Analyzer Configuration - Control). |
| Appli- cation |
The Application softkey selects the audio measurement application.
The results of both applications Analyzer 1 and Analyzer 2 are indicated in the corresponding columns of the output tables; see section Measurement Results. The Settings table shows the measurement configurations for both applications. On the other hand, all softkeys and hotkeys in the measurement menu belong to the current application. |
| Analyzer 1 |
Analyzer 1 selects the primary audio circuit where the audio signals are applied to the connectors AF OUT (output, AF generator signal) and AF IN (input) on the CMU front panel. |
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Remote control |
| Analyzer 2 |
Analyzer 2 selects the secondary audio circuit where the audio signals are applied to the connectors AUX 2 (output, AF generator signal) and AUX 1 (input) on the CMU front panel. | |
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Remote control |
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| Analyzer Level |
The Analyzer Level softkey controls the level in the AF input signal path. | |
| AF Max. Level |
The AF Max. Level hotkey sets the maximum expected AF input level. Levels exceeding this value can not be measured. |
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Remote control |
Error messages
If the value set for Manual Level is too high or too low, a window with the error message "<Max_Level> is out of range. <permissible max. value> is limit." and three fields will appear:
| Accept
Re-edit Cancel |
The permissible max. value is accepted as maximum input level.
The Manual Level is entered once again. The last valid input value is maintained. |
| AF Mode |
The AF Mode hotkey determines how the input level is defined.
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| Manual
Auto |
Manual input of maximum input level via Manual Level (in mV).
Automatic setting of maximum input level (autoranging) according to average power of applied AF signal (plus an appropriate overload margin). |
Note1:
A maximum input level can be entered even if automatic level setting (autoranging) is selected. It serves as a start value for the autoranging algorithm and is important to ensure safe switchover to manual setting.
Note2:
The AF Max. Level and AF Mode settings supersede the corresponding settings in the Multitone menu (Analyzer 1/2).
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Remote control |
| Generator |
The Generator softkey controls the audio generator and defines the properties of the generated DC or sinusoidal AC signal. The three hotkeys for the primary and secondary audio circuit (Gen. 1/Gen. 2) are analogous.
The generator settings are also provided in the Analyzer Configuration menu; see section Generator Settings (Analyzer Configuration - Generator). |
| GSM900 MS Sign. |
The hotkey switches back to the previous GSM function group. |
| This hotkey is available if the Analyzer/Generator menu is opened from a GSM function group. The hotkey is labeled with the calling function group and test mode, which is also displayed in the menu header. | |
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Remote control |