Preset Descriptions

Preset Descriptions

Last updated: January 15, 2009

Description

The test set is capable of accepting several different preset commands.

At no time during a preset operation, does transmit power exceed the last user setting of the transmit power. The input power is not set to any value lower than the last user setting of the input power. This is to avoid power spikes on the output and possible receiver damage on the input during transitions associated with preset operations.

Partial Preset

Partial preset saves setup time because measurement setup parameters remain unchanged. This is the recommended way to place the test set in a known condition.

When you fast switch between formats in a fast switching test application the test set behaves as if a partial preset has occurred. The table below lists some key partial preset results.

Example

 
OUTPUT 714;"SYSTEM:PRESET3" !Command for a partial preset when user in
                            !remote operation.

SYSTEM:PRESET3 is the recommended command for a partial preset operation. The SYSTEM:PRESET[1] command is not recommended for use at this time.

Press the green Preset key on the front panel to perform a partial preset.

Partial Preset Behavior
Function Partial Preset Result
Trigger Arm no change
Measurement parameters no change

Calibration data

no change
Enable registers no change
Positive Transition Filter registers no change
Negative Transition Filter registers no change
Contents of RAM no change

Contents of output queue

 no change
Contents of error queue no change

Maskable Message Display State

no change
Operating Mode Active Cell

Measurements

 aborted and inactivated
Measurement results NAN

Measurement integrity indicator

 1 = no result available

Transmit Power State

ON
Cell Activated State ON
Call in progress aborted

Call Control Status

Idle
Call Counters cleared

Call Error Counters

cleared

SACCH

cleared
Pending Service request not cleared

Full Preset

A full preset requires you to select new measurements and configure their parameters. If measurement parameters do not need to be changed, use a partial preset to save time.

Example

 
OUTPUT 714;"*RST" !Recommended command for a full preset, sets trigger arm to single.

 
OUTPUT 714;"SYSTEM:PRESET2" !Command for a full preset, sets trigger arm to continuous.

The *RST common command is the recommended command for a full preset operation.

   
NOTE
Transmit power is not set to OFF during a full preset, transmit power is set to the default value.
   

Full Preset Behavior
Function Full Preset Result

Trigger Arm

Continuous (manual operation full preset or SYSTEM:PRESET2 command)

Trigger Arm

Single (remote operation full preset, *RST command)

Measurement Parameters

all set to defaults

Maskable Message Display State

On (manual operation full preset)

Maskable Message Display State

Off (remote operation full preset)

Status Preset

The STATUS:PRESET command sets the status system as defined in "SCPI 1995 Volume 2: Command Reference" section 20.7. All of the enable registers are set to 0, all PTR registers are set to 1, and all NTR registers are set to 0.

Example

 
OUTPUT 714;"STATUS:PRESET" !Presets the STATus subsystem.

Related Topics

SYSTem:PRESet