AMEasure Subsystem (Digital Interface Tester)
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AM700 Audio Measurement Set Programmer Manual
AMEasure Subsystem (Digital Interface Tester)
The Digital Interface Tester has AMEasure command support for four separate
measurements. They are the following:
AMEasure1: Bit Activity
AMEasure2: Channel Status
AMEasure3: Eye Diagram
AMEasure4: Jitter Spectrum
AMEasure:DAUDio:CSTatus(1–2):DATA?
Suffixes: CST1 is the first or left channel
CST2 is the second or right channel.
Usage: Query only. This query is available only while the Digital Interface Tester is
running, and the numbers are updated only when the Channel Status table
display is visible. A query made when the Channel Status table is not displayed
will give a return, but that return will be the last received data (if any has been
received).
Response: This query returns 24 integers, each corresponding to a byte of channel status
information for the selected channel. The encoding of the integers is decimal,
numeric order. These values correspond exactly with the raw channel status
displays.
*RST: No *RST event.
AMEasure:DAUDio:PPJitter?
Usage: Query–only. The data returned by this query is updated only when the eye
diagram display is visible on the AM700’s screen.
Response: This query returns a floating point value representing the currently measured
peak-to-peak jitter measurement.
