HP (Hewlett-Packard) E6380-90019 Cell Phone Accessories User Manual


 
Chapter 5 127
Analog Measurements - Screens and Control Fields
Audio In Lo Auto/Norm
Audio In Lo
This field sets the AUDIO IN LO connector’s state.
Gnd causes the center pin of the connector to be connected directly to
chassis ground.
Float isolates the center pin of the connector from ground,
providing a floating input to the AF analyzer.
600 To Hi establishes a 600-ohm impedance between the center
pins of the AUDIO IN LO and AUDIO IN HI connectors. Also, the
Ext Load R field is removed, since the load is now fixed to 600
ohms.
Screens on which this field is displayed
AF ANALYZER
Audio Out
Audio output coupling selects ac or dc coupling of the AF generator to
the AUDIO OUT connector.
Screens on which this field is displayed
RF GENERATOR
Auto/Norm
This field specifies how the trigger level is set.
Auto
automatically triggers if a triggering signal is not detected
within approximately 50 ms of the last trigger.
Norm
requires a specific triggering signal before triggering.
Operating Considerations
Automatic triggering should be used for signals >20 Hz. Normal
triggering should be used for signals 20 Hz.
Also, when measuring 1 Hz signals, you should set the Scope To field
in the AF ANALYZER screen to Input to provide dc coupling to the
oscilloscope’s input.
Screens on which this field is displayed
SCOPE: trigger controls menu
Main Menu