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SMQV

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Variable Power Super-Miniature Digital Hybrid Wireless®
Smqv

Dual Battery - UHF Belt Pack TransmittersReadersChoice

  • Digital Hybrid Wireless™ Technology*
    (U.S. Patent #7,225,135)
  • Variable, selectable power output:
    • SMQV: 50mW, 100mW, 250mW
  • Membrane switch control panel with LCD display
  • 256 synthesized UHF frequencies
  • Wide input dynamic range
  • DSP based pilot-tone signal
  • Circulator/Isolator output stage
  • Splash-proof, machined aluminum housing
  • Non-corrosive, super-hard finish

To meet the demand for both extended operating range and extended battery life, the "V" series SM transmitters offer selectable output power of 100 or 250 mW. A third selection at 50 mW is provided for some theatrical applications where the system design specifies lower transmitter power.

The input section features the unique servo bias input circuitry with a standard TA5M type jack for use with electret lavaliere mics, dynamic mics, or line level signals. A DSP-controlled analog audio limiter is employed before the A-D converter. The limiter has a range of more than 30 dB for excellent overload protection and a dual release envelope that makes the limiter acoustically transparent while maintaining low distortion. The limiter recovers quickly from brief transients, with no audible side effects, and also recovers slowly from sustained high levels to keep audio distortion low while preserving short term dynamics.

Digital Hybrid Wireless™ is a revolutionary new design that combines 24-bit digital audio with an analog FM radio link to provide outstanding audio quality and the extended operating range of the best analog wireless systems. The design overcomes channel noise in a dramatically new way, digitally encoding the audio bitstream in the transmitter and decoding it in the receiver, yet sending the encoded information via an analog FM wireless link. This proprietary DSP algorithm eliminates a compandor circuit and its artifacts, and preserves the RF spectral footprint of analog FM designs to simplify multi-channel coordination with exisiting analog wireless systems.

Battery Life

    Alkaline Lithium 2500 mA NiMH
Battery Life: SMV 50 mW (1AA): 2 hrs 7.25 hrs 5 hrs
  SMV 100 mW (1AA): 1.5 hrs 5.5 hrs 4 hrs
  SMV 250 mW (1AA): N/R* 3 hrs 2.25 hrs
  SMQV 50 mW (2AA): 6 hrs 14.5 hrs 8.5 hrs
  SMQV 100 mW (2AA): 5.5 hrs 14 hrs 8.5 hrs
  SMQV 250 mW (2AA): 1.75 hrs 7.5 hrs 5 hrs

*Alkaline is not recommended at the 250 mW level. Battery tests lasted less than 1/2 hour

 
 
 
 

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