RF Carrier Frequency Range: 470-865, 944-952 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.
Audio Frequency Response: 40 – 18,000 Hz, (+1 dB, –3 dB).
Gain Adjustment Range:
- UR1: –20 to +35 dB (–10 dB recommended for guitar)
- UR2: –10 to +20 dB
Modulation: FM (45 kHz max. deviation), compander system with pre- and de-emphasis
Dynamic Range: >105 dB, A-weighted
Image Rejection: >110 dB typical
RF Sensitivity:
UR4S+ |
UR4D+ |
–110 dBm Typical |
–107 dBm Typical |
12 dB SINAD |
12 dB SINAD |
–105 dBm Typical |
–102 dBm Typical |
30 dB SINAD |
30 dB SINAD |
Ultimate Quieting (ref. 45 kHz deviation): >100 dB, A-weighted
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. ± 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.
Battery Life (Typical): UR1, UR2: 9.5 hours (normal RF power),6 hours (high RF power)
Operating Temperature Range
–18° to +57° C (0° to +135°F)
Overall Dimensions
- UR1: 98 mm L x 60 mm W x 17 mm D
- UR2/SM58: 261 mm L x 51 mm Dia
- UR2/SM86: 261 mm L x 51 mm Dia
- UR2/SM87A: 254 mm x 51 mm Dia.
- UR2/KSM9/BK, UR2/KSM9/SL: 250 mm x 49 mm Dia.
- UR2/BETA 58: 258 mm L x 51 mm Dia.
- UR2/BETA 87A, UR2/BETA 87C: 254 mm x 51 mm Dia.
- UR4S+/UR4D+: 44 mm H x 483 mm W x 366 mm D
Net Weight
- UR1: 97 g without batteries
- UR2/SM58: 356 g (without batteries
- UR2/BETA 58: 314 g without batteries
- UR2/SM86: 317 g without batteries
- UR2/SM87A: 298 g without batteries
- UR2/KSM9/BK, UR2/KSM9/SL: 410 g without batteries
- UR2/BETA 87A, U2/BETA 87C: 325 g without batteries
- UR4S+: 5.0 kg
- UR4D+: 5.1 kg
Housing:
- UR1: Cast magnesium
- UR2: Aluminum die-cast handle and aluminum machined battery cup
UR4S+, UR4D+: Galvanized steel