Audiometar Resonance model R17a

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Opis

Preuzmite ovdje PDF R17a

RANGE

• Frequency range (AC):
125 – 8000 Hz (R17A-AC, R17A-BC)
125 – 12500 Hz (R17A-HDA)
• Frequency range (BC):
250 – 6000 Hz (R17A-HDA, R17A-BC)
• Range stimuli level AC: -10 up to 110 dB HL
• Range stimuli level BC: -10 up to 70 dB HL

ACCURACY

• Frequency < 0.5%
• Distortion < 1%
• Crosstalk >70 dB
• Attenuator linearity 1 dB per 5 dB step, max 3 dB
whole range

TYPE OF SIGNALS

• Pure tone: sine wave 125 to 8 KHz signal (to 12.5 KHz
with HDA280 phones)
• Warble: +/- 5% frequency sine wave modulated,
modulation: sine wave 5 Hz
• Narrow band noise: 24 dB/oct filtered noise
• Speech noise: 1 khz 12 dB/oct filtered noise
• White noise
• Speech material recorded on internal SD-card

OUTPUT TRANSDUCERS

• ACR, ACL: 10 ohm DD45 matched pair earphone or
HDA280** Sennheiser. IP30 (optional)
• BC: B71W*

*not included in R17A-AC   **R17A-HDA only

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