Octave Filters

1. Calibrates both octave and 1/3 octave filters.

2. Measures the attenuation at passbands and stopbands.

3. Covers frequency range from 20 Hz to 25 kHz.

4. For calibration fees, please contact Mr. Y.K. Yan at (852) 2829 4855 or ykyan@itc.gov.hk.