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RF Sensitivity
1.26 µVfor 12 dB SINAD, typical
Spurious Rejection
75 dB, typical
Ultimate Quieting
Ref. ±38 kHz deviation with 1 kHz tone
>105 dB, A-Weighted
Total Harmonic Distortion
Ref. ±38 kHz deviation with 1 kHz tone
0.3%, typical
Operating Temperature Range
-20°C (-4°F) to 49°C (120°F)
Polarity
Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) pro-
duces positive voltage on pin 2 (with respect to pin 3 of low-impedance output) and the tip of the high im-
pedance 1/4-inch output.
Battery Life
8 to 9 hours (9 V alkaline)
ULX1
Gain Adjustment Range
25 dB
Attenuation Switch
0, −20 dB
Dimensions
96.5 x 67 x 26.7 mm (3.86 x 2.68 x 1.10 in.), H x W x D
Weight
79 g (2.8 oz.) without batteries
Power Requirements
9 V alkaline
Input Impedance
1 MΩ
RF Output Power
30 mW maximum
Shure Incorporated
26/31
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