Leírás
Az Ortofon test record beállítólemez, műszeres mérésekhez.
A és B oldal megegyezik az alábbiak találhatók rajta:
1. Frequency Sweep Left Channel 800 Hz – 50 kHz. Log. 28 sec. Linear cut* (800 – 20000 Hz ±1,5 dB)
2. Frequency Sweep Right Channel 800 Hz – 50 kHz. Log. 28 sec. Linear cut* (800 – 20000 Hz ±1,5 dB)
3. Frequency Sweep Left Channel 800 Hz – 50 kHz. Log. 28 sec. Linear cut* (800 – 20000 Hz ±1,5 dB)
4. Frequency Sweep Right Channel 800 Hz – 50 kHz. Log. 28 sec. Linear cut* (800 – 20000 Hz ±1,5 dB)
5. Reference tone 1000 Hz 5 cm/sec rms Left
6. Reference tone 1000 Hz 5 cm/sec rms Right
7. Reference tone 1000 Hz 5 cm/sec rms Left
8. Reference tone 1000 Hz 5 cm/sec rms Right
9. Tracking ability, lateral 50 μm peak
10. Tracking ability, lateral 60 μm peak
11. Tracking ability, lateral 70 μm peak
12. Tracking ability, lateral 80 μm peak
13. Tracking ability, lateral 90 μm peak
14. Tracking ability, lateral 100 μm peak
15. Square Wave Form 2.7 msec duty cycle 3:7
* The record has a constant velocity amplitude throughout the sweep.
