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Lectrosonics SMV
Super Mini TX, Variable Power Microphone Transmitter


To meet the demand for both extended operating range and extended battery life, the V series SM transmitters offer selectable output power ranging from 50 and 100 mW.
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Lectrosonics SMV
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To meet the demand for both extended operating range and extended battery life, the V series SM transmitters offer selectable output power ranging from 50 and 100 mW.  With higher power output, the perating range is improved at the expense of battery life, however when range is not an issue the power can be reduced to extend the battery life. 

The SMV is compatible with the RM and RM2 remote control unites for hands free setup and adjustment using audible tones delivered into the microphones from a tiny loudspeaker in the remote control unit.  The transmitter can be put to sleep to conserve battery power during setup while the transmitter is buried deep inside costuming, then awakened for normal operation when the production begins. 

The DSP-based design works with all Digital Hybrid receivers, and is backward compatible for use with Lectrosonics 200 and 100 series. 

The input section features the 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 transparant while maintaining low distortion.  The limiter recovers quckly from brief transients, with no distorion.   

Other Features

  • Digital Hybrid Wireless Technology
  • Membrane switch control panel with LCD display
  • 256 synthesized UHF frequencies
  • Wide input dynamic range
  • DSP based pilot-tone signal
  • Circular/Isolator output stage
  • Splash-proof, machined aluminum housing
  • Non-corrosive, superhard finish


  • Channel spacing: 100 kHz
  • Frequency selection: Control panel mounted membrane switches
  • RF Power output: Switchable - 50 or 100 mW
  • Pilot tone: 25 to 32 kHz; 5 kHz deviation (in 400 Series Mode)
  • Frequency stability:  ± 0.002%
  • Deviation: ± 75 kHz max. (in 400 Series Mode)
  • Spurious radition: 60 dB below carrier
  • Equivalent input noise: –125 dBV, A-weighted
  • Input limiter: Soft limiter, 30 dB range



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