Description
The reference level tone is used for the adjustment of the playback chain of the recorder according to the required operating level in playback mode.
Parameters:
Tape speed:
38.1 cm/s (15 ips)
Track width:
Full track
Azimuth position:
(90° ± 1′)
Signal:
700 Hz
Reference value magnetic flux:
185 nWb/m (ANSI)
Flux level (relative to the reference value):
0 dB (± 0.05 dB)
Duration:
3 min.
