ur3

UR3 Plug-on Transmitter

Premium UHF-R® plug-on wireless microphone transmitter for professional field and media production

The UR3 is a premium transmitter that combines the best of Shure UHF-R wireless features with the superior flexibility of XLR connectivity and comprehensive function control.

Smart, ergonomic industrial design

  • Designed to be comfortably gripped for ideal handling
  • Discretely located Audio Level and Power Indicator LEDs
  • Backlit LCD Display
  • RF mute control
  • Die-cast metal construction
  • Compatible with any wired XLR microphone
Features

Infrared automatic frequency sync

  • Open frequencies are selected and synced directly to the UR3 from the associated receiver

Microphone Preset List

  • Program microphone ID lists to tailor settings (gain / phantom power / high-pass filter / etc.) per microphone for quick recall
  • Program and store up to 10 microphone ID lists
  • Copy and paste lists between individual UR3s

Selectable MIC / LINE input

  • Unique capable of handling full +24dBv

Sweepable high-pass filter (40Hz – 240Hz)

Power options, including phantom power

  • 2 AA batteries (10+ hours of battery life when used with dynamic microphones)
  • Provides full range of phantom power (Selectable +12 / +48V)
  • 4+ hours of battery life when used with condenser microphones that require +48V phantom power (full load)
   

  • Technical Data

     

    Transmitter Type Handheld
    Dimensions 99(h) x 66(w) x 23(d) mm
    Battery, endurance 10 hours (alkaline) w/ no phantom power @ 10mW, typical (freq. band dependent). 4 hours (alkaline), w/ 48V phantom power @ 50mW, typical (freq. band dependent)
    Weight 196 g
    Modulation FM (45kHz max. deviation)
    Frequency Range 470 – 952 MHz (depending on region)
    RF Output Power selectable 10mW or 50mW maximum, 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 Input impedance 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.