| Modulation | FM (45kHz max. deviation) |
| Frequency Range | 470 – 952 MHz (depending on region) |
| Tuning Bandwidth | up to 77 MHz (depending on region)
|
| Antenna | dipole, UR3 housing and attached microphone form the antenna |
| Carrier frequencies | up to 3080, tunable in steps of 25 kHz (depending on region) |
| Power Requirements | two (2) 1.5V AA alkaline |
| Gain Adjustment Range | -10 to +20 dB, MIC or LINE input setting |
| Pilot Tone | 32kHz |
| Frequency stability | ± 0.0015% |
| Spurious radiation | 75 dB below carrier (typical) |
| Equivalent input noise | -127.0dBV, A-weighted (audio front end) |
| Max. Audio Input level | +24 dBV (Line Input, 0dB gain) -21 dBV (Mic Input, 0dB gain) |
| Differential Inputimpedance | 6 kΩ LINE Input Setting 3 kΩ MIC Input Setting |
| System Frequency response | 35Hz – 17kHz, (+1.5dB, -3dB) Note: Overall system frequency response depends on the microphone element and receiver. |
| High Pass Filter | two-pole (12dB per octave), selectable cut off frequency from 40 Hz to 240Hz |
| System THD+N | <0.3%, 1kHz sine wave @ 6dB below clip (line and mic input setting) |
| System Dynamic Range | 107dB typical, Line Mode, A-weighted through a UR4 105dB typical, Mic Mode, A-weighted through a UR4 102dB typical, Line Mode, A-weighted through a UR5 100dB typical, Mic Mode, A-weighted through a UR5 |
| Audio input jack | 3-pin female XLR Pin 1: Ground Pin 2: Hot Pin 3: Cold |
| Phantom Power | +48V ± 4V, 7mA max. +12V ± 1V, 7mA max. |
SHURE UR3A (R16)
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