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Lectrosonics SMWB Miniature Wideband Transmitter, A1 470.100 - 537.575 MHz
To meet the demands for a variety of RF environments and applications, the “WB” series SM transmitters offer selectable output power of 25, 50 and 100 mW (25 and 50 mW for export versions). With higher power output, the operating range is improved, or, a more secure link can be relied upon for high RF noise environments. Battery life is unchanged with the different RF power selections.
The transmitters offer hands-free setup and adjustment using audible tones. They can be put to sleep to conserve battery power during setup while buried inside costuming, then awakened for normal operation when the production begins. Other features include input gain adjustment in 1 dB increments over a 44 dB range and adjustable low-frequency audio roll-off for 3 dB down points at 35, 50, 70, 100, 120 or 150 Hz to control subsonic and very low-frequency audio content.
Key Features
- Ultra-lightweight, corrosion resistant housing
 - Water resistant seals for use in damp environments
 - LCD interface with lockout option
 - Programmable compatibility modes for use with a wide variety of different receivers
 - Servo Bias input circuitry
 - IR (infrared) port for fast setup
 - Covers 3 frequency blocks (export versions cover 3 frequency blocks)
 - Update firmware in the field via Micro SD card reader
 - Alternate use as a recorder on an internal microSDHC memory card
 
Technical Specifications
Operating frequencies
  Band A1 470.100 - 537.575
  Band B1 537.600 - 607.950
  Channel Spacing
  Selectable; 25 or 100 kHz
  RF Power output
  25, 50 or 100 mW
  Compatibility Modes
  Nu Hybrid, Mode 3, IFB
  Pilot tone
  25 to 32 kHz
  Frequency stability
  ± 0.002%
  Spurious radiation
  Compliant with ETSI EN 300 422-1
  Equivalent input noise
  -125 dBV, A-weighted
  Input level
  If set for dynamic mic, 0.5 mV to  50 mV before limiting
  Greater than 1 V with limiting
  If set for electret lavaliere mic,  1.7 uA to 170 uA before limiting
  Greater than 5000 uA (5 mA) with  limiting
  Line level input, 17 mV to 1.7 V  before limiting
  Greater than 50 V with limiting
  Input impedance
  Dynamic mic, 300 Ohms
  Electret lavaliere, Input is virtual  ground with servo adjusted constant current bias
  Line level, 2.7 k ohms
  Input limiter
  Soft limiter, 30 dB range
  Bias voltages
  Fixed 5 V at up to 5 mA
  Selectable 2 V or 4 V servo bias  for any electret lavaliere
  Gain control range
  44 dB; panel mounted membrane  switches
  Modulation indicators
  Dual bicolor LEDs indicate  modulation
  -20, -10, 0, +10 dB referenced to full  modulation
  Controls
  Control panel w/ LCD and 4  membrane switches
  Low frequency roll-off
  Adjustable from 35 to 150 Hz
  Audio Frequency Response
  35 Hz to 20 kHz, +/-1 dB
  Total Harmonic Distortion
  0.2% typical (400 Series mode)
  Audio Input Jack
  Switchcraft 5-pin locking (TA5F)
  Antenna
  Flexible, unbreakable steel cable.
  Battery
  AA, disposable, Lithium  recommended
  +1.5VDC
  Weight w/ battery(s)
  SMWB 3.2 oz. (90.719 grams)
  SMDWB 4.8 oz. (136.078 grams)
  Overall Dimensions
  SMWB 2.366 x 1.954 x 0.642 inches;  (without microphone) 60.096 x 49.632 x 16.307 mm
  SMDWB 2.366 x 2.475 x 0.642  inches; 60.096 x 62.865 x 16.307 mm
  Emission Designator
  110KF3E
Recorder
  Storage media
  microSDHC memory card
  File format
  .wav files (BWF)
  A/D converter
  24-bit
  Sampling rate
  44.1 kHz
  Input Type
  Analog mic/line level compatible;  servo bias preamp for 2V and 4V lavaliere microphones
  Input level
  Dynamic mic, 0.5 mV to 50 mV
  Electret mic, Nominal 2 mV to 300  mV
  Line level, 17 mV to 1.7 V
  Input connector
  TA5M 5-pin male
  Frequency response
  20 Hz to 20 kHz; +0.5/-1.5 dB
  Dynamic range
  110 dB (A), before limiting
  Distortion
  < 0.035%
  Operating temperature range
  Celsius -20 to 40
  Fahrenheit -5 to 104
  Included Accessories
1 - AMM straight SMA antenna - SMA  mount,
1 - AA Battery (2 for SMDWB)

            
          