RA0039


RA0039
The IEC 318 Ear Simulator Type RA0039 is an ear simulator with an input impedance closely resembling that of an average human ear. When the RA0039 is coupled to a sound source, the impedance will load the sound source similar to the loading caused by the human ear.

The RA0039 meets the requirements of IEC 60318-1:1998 Electroacoustics - "Simulators of human head and ear - Part 1: Ear simulator for the calibration of supra-aural earphones".

The RA0039 is measured and calibrated according to the ITU-T Recommendation P.57 (08/96) ”Series P: Telephone transmission quality, Objective measuring apparatus: Artificial ears”.

The RA0039 is also part of the G.R.A.S. Artificial Ears Type 43AA and Type 43AD.

Specifications Type RA0039
Standards: IEC 60318 (prev. IEC 318) and ITU-T Recommendations P.57 (08/96)
Frequency range: 100 Hz - 4 kHz
Dimensions: Height:19.8 mm
Diameter: 60 mm
Weight: 137 g
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