UR2/SM87 with SM87A Supercardioid Microphone

UHF-R Wireless Handheld Transmitter with SM87A Supercardioid Microphone.

UHF-R Wireless Handheld Transmitter with SM87A Supercardioid Microphone.

SM87A Vocal Microphone

The Shure SM87A microphone is a professional-quality, handheld condenser microphone for use in sound reinforcement, broadcasting, and studio recording installations.

UR2 Handheld Transmitter

Download Spec Sheet in pdf format

Frequency Range and Transmitter Output Power

RF Carrier Frequency Range

      518-865 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

      UR2: –10 to +20 dB

Modulation

      FM (45 kHz max. deviation), compander system with pre- and de-emphasis

RF Power Output

      See table above.

Dynamic Range

      >105 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

      UR2: Two 1.5V AA batteries

Current Drain

      UR2: 180 mA max. (normal RF power setting)

              240 mA max. (high RF power setting)

Battery Life (Typical)

      UR2: 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/SM87A: 254 mm x 51 mm Dia. (10 x 2 in.)

Net Weight

      UR2/SM87A: 298 g (10.5 oz.) without battery

Housing:

      UR2: Aluminum die-cast handle and aluminum machined battery cup

UR2 Transmitter Audio Input

UR2 Transmitter RF Output

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