Shure Incorporated
26/31
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
