RF Carrier Frequency Range: 518-865 MHz, depending on region<br />Working Range: 150 m (500 ft.), under typical conditions 500 m (1600 ft) line-of-sight, outdoors for a single system. NOTE: Actual working range depends on RF signal absorption, reflection and interference<br />Audio Frequency Response: 40 â 18,000 Hz,(+1 dB, â3 dB). NOTE: Overall system frequency response depends on the microphone element<br />Gain Adjustment Range: UR1 â20 to +35 dB; UR2 â10 to +20 dB<br />Modulation: FM (45 kHz max. deviation), compander system with pre- and<br />de-emphasis<br />Dynamic Range: >105 dB, A-weighted<br />Image Rejection: >110 dB typical<br />RF Sensitivity: â107 dBm Typical, 12 dB SINAD; â102 dBm Typical, 30 dB SINAD<br />Spurious Rejection: >90 dB typical<br />Ultimate Quieting (ref. 45 kHz deviation): >100 dB, A-weighted<br />Signal Polarity: Positive pressure on microphone diaphragm (or positive voltage<br />applied to tip of WA302 phone plug) produces positive voltage on XLR output