Measurement Status Messages

Measurement status messages appear at the bottom left of the 89600 VSA window. The messages provide information about the current measurements.

You can hover the mouse over the status bar to view status for all measurements or you can click the up/down arrows to cycle through the measurements' status.

Below is a list of status messages with links to their descriptions.

Acquiring Pre-trigger Data

Average Complete

Average in Progress

Doing 3G demodulation

Doing CDP calculations

Doing descrambling

Doing EVM calculations

Doing final timing estimation

Doing secondary timing correction

Doing secondary timing estimation

Doing timing compensation

Doing timing correction

Doing timing estimation

Filling Time Record

Measurement paused

Measurement running

Measuring noise correction

Not currently runnable

Playback Measurement

Real-time Average in Progress

Real-time Average Complete

Real-time Measurement

Signal Track Measurement

SIMULATE Measurement

Starting 3G demodulation

Stream Measurement

Waiting for Frequency Reference Lock

Waiting for Settling

Waiting for Trigger

Message	Explanation
Acquiring Pre-Trigger Data	If a negative trigger delay is specified, the VSA must collect a certain amount of data to perform a valid measurement when it receives a trigger signal. If acquiring the data will take very long (more than a few seconds), the VSA displays this message.
Average Complete	The VSA has finished an averaged measurement.
Average in Progress	The VSA is making an averaged measurement.
Doing...	3G status message. These messages are indicators of what is happening during various stages of a W-CDMA Code Division Multiple Access: One of several digital wireless transmission methods in which signals are encoded using a specific pseudo-random sequence, or code, to define a communication channel. A receiver, knowing the code, can use it to decode the received signal in the presence of other signals in the channel. This is one of several "spread spectrum" techniques, which allows multiple users to share the same radio frequency spectrum by assigning each active user an unique code. CDMA offers improved spectral efficiency over analog transmission in that it allows for greater frequency reuse. Other characteristics of CDMA systems reduce dropped calls, increase battery life and offer more secure transmission. See also IS-95. or cdma2000 demodulation.
Filling Time Record	When you start a real-time measurement that has a long time-record length, the status bar shows "Filling Time Record" until the time record is filled. For real-time measurements, the VSA is able to process the time record as it's being filled. "Filling Time Record" informs you that the time record being processed (and displayed) is not a full time record. In some cases, such as digital demod operations, the VSA acquires extra data before and after filling the time record. The display does not change when the VSA is collecting data outside the time record.
Measurement paused	A measurement has been paused. You can continue the measurement by clicking the Pause button or start a new measurement by clicking the Start button.
Measurement running	The VSA is making an unaveraged, non-real-time measurement.
Measuring noise correction	Noise Correction is turned on and a noise correction measurement is in progress.
Not currently runnable	Indicates a measurement is not currently runnable because of hardware conflicts with the measurements in the Runnable collection.
Playback Measurement	The VSA input is from a recording.
Real-Time Average Complete	The VSA has finished a real-time averaged measurement.
Real-Time Average in Progress	The VSA is making a real-time averaged measurement.
Real-Time Measurement	The VSA is making a real-time measurement.
Signal Track Measurement	The VSA is making a measurement with Signal Tracking turned on.
SIMULATE Measurement	The VSA is making a measurement from Simulated hardware.
Starting...	3G status message. These messages are indicators of what is happening during various stages of a W-CDMA or cdma2000 demodulation.
Stream Measurement	The VSA is making a measurement from an ADS/SystemVue hardware configuration.
Waiting for Frequency Reference Lock	The VSA is waiting for the frequency reference to be locked before making a measurement.
Waiting for Settling	The VSA is waiting for internal digital filters to settle before starting the measurement.
Waiting for Trigger	The VSA is waiting for trigger conditions to be met before starting a measurement.