Chapter 4: Basic Operations
48 ADAT XT Reference Manual
AUTOLOCATION CONTROLS
The XT’s autolocation controls consist of 10 Locate Point memories which can be set
either manually or “on the fly”, and recalled instantly.
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Each Locate Point’s address can be displayed and set using either Absolute or

Relative Time.

Generally, Absolute Time and Relative Time will differ in their values. The XT,
however, maintains a constant offset between them. This makes it possible to locate
to various tape positions using either time reference.

ABSOLUTE (ABS) TIME VS. R ELATIVE TIME

The TIME counter indicates where you are on the tape by using a time reference.
There are two ways of displaying the time reference off tape: Absolute (ABS), the
actual time reference, or Relative, the same time reference but relative to a different
zero point. The Relative Time 0:00:00.00 point is set by holding the [SET LOCATE]
button and pressing [LOCATE 0], or by editing the Locate 0 point.
Use the [ABS/REL] button to select between Absolute Time and Relative Time
modes; one of two icons (ABS or REL) will appear to the left of the TIME counter.
When the display is in Absolute Time Mode (ABS icon lit), the display reflects the
actual tape time. When in Relative Mode (REL icon lit), the display reflects the tape’s
time reference relative to the 0:00:00.00 position. Once you hold the [SET LOCATE]
button and press [LOCATE 0] to establish a new 0:00:00.00 position on tape (see
below), Absolute and Relative times will be offset from one another. However, that
offset will remain constant until the next time the relative zero position is reset.

LOCATE 0

If the [LOCATE 0] button is pressed, the transport will immediately begin locating to
the 0:00:00.00 time location of the tape. If the TIME counter is in ABS mode when
[LOCATE 0] is pressed, the absolute 0:00:00.00 position is located. If the TIME
counter is in Relative mode when [LOCATE 0] is pressed, then the relative
0:00:00.00 position is located. [LOCATE 0] is different from the other [LOCATE]
buttons in this respect: it may wind the tape to different locations, depending whether
the TIME counter is in ABS or REL mode. All the other locate points represent the
same actual (physical) position on tape, regardless of whether the display is in ABS
or REL mode.
The [LOCATE 0] button is also used to set the relative zero time. When this button is
pressed while holding [SET LOCATE], the relative tape counter is reset to zero
(0:00:00.00). Once this occurs, you have changed the Relative Time zero point, and
the display will automatically change to Relative Time mode (REL icon lit).