Digital Video Cassette Technology
40
Error Rate Information
You can obtain performance information for the playback circuits. Use this window in
conjunction with the
Deck Controller
window, to fully judge performance.
1.
Turn the camera’s
Power Dial
to the
PLAY
position.
2.
Load a previously recorded cassette. Play back the tape.
3.
Click
Error Rate
tab in the
Inspector
window.
4.
The
Error Rate
window appears.
Figure 74 Error Rate Window
5.
This window displays the number of errors that occur during playback of a
tape.
6.
Observe the readings. Notice that the data constantly changes. The error rate
is an average of the
Error Count
over a short period of time.
7.
The Viterbi circuit can be switched off or on using the
OFF
and
ON Viterbi
buttons. Click the
Viterbi OFF
button. Notice that the error rate increases.
