Description
The Instrument status area is found on the bottom center of the test set's display.
Status Area of the Test Set Display
Background
Users are able to initiate more than one measurement at a time with the test set. The test set's display will show a maximum of 2 measurements. When 3 or more measurements are initiated, or the MEASUREMENT screen is not displayed, the Background annunciator reminds you that measurements are active but not displayed.
<Operating Mode> Status
The call processing status and the operating modes are displayed in this area. This area may change (depending on the TA that is active) in order to provide TA specific information.
Shift
This annunciator indicates that the blue SHIFT key has been pressed, and that the next key you press will perform the shifted function indicated, also in blue.
Ext Ref
When a suitable external time base is connected to the rear panel 10MHz REF IN connector, this annunciator will turn on.
Int Ref
When a suitable external time base is not connected to the rear panel 10MHz REF IN connector, this annunciator will turn on.
Offset
Indicates that the Amplitude Offset state is set to On.
R L T S
This annunciator indicates the state of four different conditions of the test set:
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Remote annunciator. `R' turns on when the test set is operated remotely.
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Listen annunciator. `L' turns on when the test set is listening to a command.
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Talk annunciator. `T' turns on when the test set is providing information over GPIB.
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SRQ annunciator. `S' turns on when an SRQ is active.
