Sony DWTB01/E4250
Digital Body-Pack Transmitter


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The DWT-B01 digital body-pack transmitter from Sony is a compact, lightweight and built with a sturdy die-cast magnesium body. The DWT-B01 series is a digital wireless transmitter for a UHF synthesized wireless microphone system to be used for broadcast or movie production purpose. This transmitter is suitable for Electronic News Gathering (ENG) and Electronic Field Production (EFP) applications.       

The /4250 model operates within a 60 MHz range, from 638 to 698 MHz. Audio input is selectable from either mic or line level. The DWT-B01 provides a choice of 1, 10 or 50 mW RF output. The transmitter operates for approximately 5 hours using two AA size alkaline batteries at 10 mW output power. The DWT-B01 supports use of alkaline, lithium, or nickel-metal hydride batteries. Transmitter functions; including input attenuator, RF frequency selection, RF power output, Audio LCF frequency and a power sleep mode (in the transmitter) can be remotely controlled from the digital wireless receiver.    

Sony DWTB01/E4250 Features:    

  • Supports mic or line input      
  • Requires selection of ECM-77BC/9X or ECM-FT5BC for omni-directional lavalier microphone use    
  • Audio and metadata transmission operates on UHF-TV channels 42 to 51 (638 to 698 MHz)    
  • Transmitter settings can be remotely controlled from the digital wireless receiver (using 2.4 GHz IEEE802.15.4 communication technology)    
  • Compact, lightweight and built with a sturdy die-cast magnesium body    
  • 5 hr battery life using two AA alkaline batteries @ 10 mW power setting    
  • 6 1/2 hr battery life using two AA nickel-metal hydride batteries @ 10 mW power setting    
  • 12 1/2 hr battery life using two AA lithium batteries @ 10 mW power setting    
  • Selectable output power 1/10/50 mW    

Sony DWTB01/E4250 Specifications:    

  • Bodypack Transmitter:    
    • Audio Input Connector: Sony SMC9-4S type    
    • Audio Input Level: Max. -22 dBu (with 0 dB attenuator) Mic; +24dBu Line    
    • Carrier Frequencies: 638 to 698 MHz (TV channels 42 to 51)    
    • Oscillator: Crystal controlled PLL synthesizer    
    • RF Power Output: 1 mW / 10 mW / 50 mW    
    • Type Of Emission: G1E or G1D    
  • General Specifications:    
    • Battery Life: Approximately 5 hr at 10 mW output using alkaline batteries    
    • Compatibility: For use with DWX Series wireless products operating on the same frequencies    
    • Dimensions: 2 1/2" x 2 7/8" x 11/16"    
    • Power Requirements: DC 3.0V, (two AA size batteries)    
    • Weight: 4 oz (including batteries)    
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