Shure U2/Beta58

RF Carrier Frequency Range: 782-806 MHz
Working Range

• U1: 152.4 m (500 ft) minimum, under typical conditions; 487.6 m (1600 ft ) line of sight
• U1H: 300 m (1000 ft.) minimum, under typical conditions; 975.2 m (3200 ft) line of sight

Audio Frequency Response: 50 to 15,000 Hz, _2 dB.
Gain Adjustment Range

• U1, U1H: 0 to 40 dB
• U2: 0 to 26 dB

Modulation: _45 kHz deviation compressor-expander system with pre-and de-emphasis
RF Power Output

• U1, U2: 10 mW maximum
• U1H: 100 mW maximum

Dynamic Range: >102 dB, A-weighted
Image Rejection: 90 dB typical
Spurious Rejection: 75 dB typical
Ultimate Quieting (ref. 45 kHz deviation):  >100 dB, A-weighted
Audio Polarity: Positive pressure on microphone diaphragm (or positive voltage applied to tip of WA302 phone plug) produces positive voltage on pin 2 with respect to pin 3 of low impedance output and the tip of the high impedance 1/4-inch output
System Distortion (ref. ±45 kHz deviation, 1 kHz modulation): 0.3% Total Harmonic Distortion typical
Power Requirements:

• U1, U1A, U2: 1.5V AA alkaline battery; Nicad optional
• U4: 90 to 230 Vac, 50/60 Hz

Power Consumption

• U4S: 9.6 W min., 13.2 W max.
• U4D: 12 W min.,16 W max.
• UA840: 15 W min., 16 W max.

Battery Life (Typical):

• U1, U2: 12 hours (with 1.5V AA alkaline battery)
• U1H: 6 hours (with 1.5V AA alkaline battery)

Operating Temperature Range: -20_ to 50_ C
Overall Dimensions:

• U1, U1A: 98.4 mm L x 64.7 mm W x 24.6 mm D
• U2/58:254 mm L x 50.8 mm Dia.
• U2/BETA 58: 254 mm L x 53.2 mm Dia.
• U2/87:228.6 mm x 49.2 mm Dia.
• U2/BETA 87: 216 mm L x 50.8 mm Dia.
• U4S/U4D: 44.5 mm H x 482.6 mm W x 295.3 mm D

Net Weight

• U1, U1A: 175.2 g without battery
• U2/58, U2/BETA 58: 375.6 g without battery
• U2/87, U2/BETA 87: 303.1 g without battery
• U4S: 3.30 kg
• U4D: 3.85 kg