RF Carrier Frequency Range
470-952 MHz, depending on region
Working Range
UR1, UR2:150 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 microphone element
Gain Adjustment Range
UR1: –20 to +35 dB
UR2: –10 to +20 dB
Modulation
FM (45 kHz max. deviation), compander system with pre- and de-emphasis
Signal Polarity
Positive pressure on microphone diaphragm (or positive voltage applied
to tip of
WA302 phone plug) 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. ¡¾ 45 kHz deviation, 1 kHz modulation)
<0.3% Total Harmonic Distortion typical
Power Requirements
UR1, UR2: Two 1.5V AA batteries
UR4: 100 to 240 Vac, 50/60 Hz
Current Drain
UR1, UR2: 180 mA max. (normal RF power setting)
240 mA max. (high RF power setting)
UR4D+, UR4S+: 0.8 Amps max.
Overall Dimensions
UR1: 98 mm L x 60 mm W x 17 mm D (3.84 x 2.38 x 0.66 in.)
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.)
UR4S+/UR4D+: 44 mm H x 483 mm W x 366 mm D (1.72 x 19.00 x 14.39 in.)
Net Weight
UR1: 97 g (3.4 oz.) without battery
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)
UR4S+: 4.8 kg (10.6 lbs)
UR4D+: 5.0 kg (11.0 lbs)
Housing:
UR1: Cast magnesium
UR2: Aluminum die-cast handle and aluminum machined battery cup
UR4S+, UR4D+: Galvanized steel