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reference_tape [2024/01/24 10:49] – willreference_tape [2024/01/24 10:51] (huidige) – will
Regel 13: Regel 13:
   * 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