Shure UR2 Handheld Transmitter
Specifications
RF Carrier Frequency Range
470-952 MHz, depending on region
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
Audio Frequency Response
40 – 18,000 Hz,(+1 dB, –3 dB).
NOTE: Overall system frequency response depends on the microphone element
Gain Adjustment Range
–10 to +20 dB
Modulation
FM (45 kHz max. deviation), compander system with pre- and de-emphasis
RF Power Output
10 / 50 mW
Dynamic Range
>105 dB, A-weighted
Signal Polarity
Positive pressure on microphone diaphragm produces positive voltage on XLR output pin 2 with respect to XLR pin 3 and on the tip of the 1/4-inch output jack.
System Distortion
(ref. ± 45 kHz deviation, 1 kHz modulation)
<0.3% Total Harmonic Distortion typical
Power Requirements
Two 1.5V AA batteries
Current Drain
180 mA max. (normal RF power setting)
240 mA max. (high RF power setting)
Battery Life (Typical)
9.5 hours (low power)
6 hours (high power)
Operating Temperature Range
–18° to +57° C (0° to +135° F)
NOTE: Battery characteristics may limit this range
NOTE: Electrical safety approval is based on a maximum ambient temperature of 35°C (95°F).
Overall Dimensions
UR2/SM58: 261 mm L x 51 mm Dia. (10.27 x 2 in.)
UR2/SM86: 261 mm L x 51 mm Dia. (10.27 x 2 in.)
UR2/SM87A: 254 mm x 51 mm Dia. (10 x 2 in.)
UR2/BETA 58: 258 mm L x 51 mm Dia. (10.15 x 2 in.)
UR2/BETA 87A, UR2/BETA 87C: 254 mm x 51 mm Dia. (10 x 2 in.)
UR2/KSM9/BK, UR2/KSM9/SL: 250 mm x 49 mm Dia. (9 7/8 x 15/16 in.)
Net Weight
UR2/SM58: 356 g (12.6 oz.) without battery
UR2/BETA 58: 314 g (11.1oz.) without battery
UR2/SM86: 317 g (11.2 oz.) without battery
UR2/SM87A: 298 g (10.5 oz.) without battery
UR2/BETA 87A, U2/BETA 87C: 325 g (11.5 oz) without battery
UR2/KSM9/BK, UR2/KSM9/SL: 410 g (14.4 oz.) without battery
Housing:
Aluminum die-cast handle and aluminum machined battery cup
