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reference_tape [2024/01/24 10:48] – willreference_tape [2024/01/24 10:51] (huidige) – will
Regel 12: Regel 12:
   * The actual recording levels are measured by the integrated digital AC thru RMS dBm meter section on the sequencer / calibration box for highest recording accuracy.   * The actual recording levels are measured by the integrated digital AC thru RMS dBm meter section on the sequencer / calibration box for highest recording accuracy.
   * Frequency accuracy of the test box is better that 0.01% and the reference levels are better than +/-0.5 dB    * Frequency accuracy of the test box is better that 0.01% and the reference levels are better than +/-0.5 dB 
-  * The test tape is recorded as half track at 19 cm/s (7½ ips) containing the following tracks: +  * The test tape is recorded as half track at 19 cm/s (7½ ips) containing the following tracks:  
-  - #1                        16 KHZ -20 dB  at 7 1/2 IPS for azimuth +    * #1   16 KHZ -20 dB  at 7 1/2 IPS for azimuth 
-  - #2                        250 Hz at +4dB  at 7 1/2 IPS for playback level adjustment +    * #2   250 Hz at +4dB  at 7 1/2 IPS for playback level adjustment 
-  - #3                        3kHz at 0 dB at  7 1/2 IPS for speed and wow & flutter test according to the JIS norm +    * #3   3kHz at 0 dB at  7 1/2 IPS for speed and wow & flutter test according to the JIS norm 
-  - #4       700 Hz 0 dB at  7 1/2 IPS +    * #4   700 Hz 0 dB at  7 1/2 IPS 
-  - #5      1 kHz 0 dB at  7 1/2 IPS+    * #5   1 kHz 0 dB at  7 1/2 IPS
  
 Duration of each track is 120 sec Duration of each track is 120 sec
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   * The test tape comes with green / red leader tape for easy direction identification on a 15 cm reel   * The test tape comes with green / red leader tape for easy direction identification on a 15 cm reel