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The non-tracking format – Sony NT-2 User Manual

Page 32

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32

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head

The head rotates in this direction.

track

tape

tape direction

The Non-Tracking format

With the conventional helical scan system of tape tracking, a rotary head must
precisely trace each recorded track of the tape during playback. This tracking
method requires highly precise mechanical components, which makes it
difficult to reduce the size of the recorder.

On the other hand, with the NT (Non-Tracking) format, a rotary head is not
required to precisely trace the recorded track during playback. Therefore, the
number of mechanical parts has been reduced. And this makes the compact
size of the recorder possible.
Instead of tracing each track one by one, the rotary head reads several tracks
at a time.

data picked up at a time

data recorded in a track

a recorded track

head

m

What is the NT (Non-Tracking) format?