Agilent Technologies E8285A manual Dsat Meas

Chapter 4, Description of Fields

Fields

DSAT Meas

This field is displayed only when the System Type field is set to NAMPS or

NTACS .

This field is used to select what the signaling decoder will decode. The choices are:

•DSAT

•Data

When DSAT is selected, the signaling decoder decodes DSAT (Digital Supervisory Audio Tone) transponded from the mobile station currently connected on a call.

When Data is selected, the signaling decoder decodes and displays reverse voice channel data and acts upon messages from the mobile station currently connected on a call.

Operating Considerations

To verify that the mobile station is transponding the correct DSAT, make sure DSAT is selected in this field, and select “NMeas” in the Display field. The decoded DSAT will be displayed in the DSAT/DST (hex) field.

To set up the signaling decoder to decode and display signaling messages that are transmitted on the reverse voice channel, make sure that “Data” is selected in this field, then select “NData” in the Display field. Messages generated by signaling events, such as when a call is ended by the mobile station, will now be decoded and displayed. If this field is not set to “Data”, and a call is ended by the mobile station, the Test Set will drop the call when it detects that the mobile station is no longer on the call.

GPIB Example

“CPRocess:NAMPs:DSAT:MEASure:SELect ‘Data’“

commands the analog signaling decoder to decode reverse traffic channel data.

Screens Where Field is Present

CALL CONTROL (when NAMPS is selected in the System Type field)

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