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Questions & Answers

FAQ

What is the battery life of the SMDWB Wireless Miniature Wideband Beltpack Microphone Transmitter and Recorder?

The SMDWB Wireless Miniature Wideband Beltpack Microphone Transmitter and Recorder has a long-lasting battery life of up to 14.5 hours.

Can the SMDWB be used with different types of microphones?

Yes, the SMDWB's input section features the unique Lectrosonics servo bias input circuitry with a standard TA5M type jack for use with electret lavaliere mics, dynamic mics, or line level signals.

Is the SMDWB resistant to water and sweat?

Yes, the SMDWB has a water-resistant control panel and a special non-corrosive finish on its aluminum housing that resists salt water exposure and perspiration, making it suitable for use in extreme environments.

Can the SMDWB be used as a standalone recorder?

Absolutely, the SMDWB can function as a standalone recorder, utilizing the industry-standard .wav (BWF) file format, compatible with essentially any audio or video editing software.

Does the SMDWB offer adjustable output power levels?

Yes, the SMDWB offers selectable output power levels of 25, 50, and 100 mW, allowing users to balance operating range and battery life according to their specific needs.

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Lectrosonics SMDWB Specifications

Used for

Used for

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  • Used for

    Broadcast, EFP and ENG Applications

Transmitter

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  • Operating frequencies

    B1: 537.600 to 614.375 MHz

  • Channel Spacing

    Selectable; 25 or 100 kHz

  • RF Power output

    Switchable; 25, 50 or 100 mW

  • Compatibility Modes

    Digital Hybrid Wireless (NU Hbr), 200 Series, 100 Series, Mode 3, Mode 6, IFB

  • Pilot tone (Digital Hybrid Mode)

    25 to 32 kHz; 5 kHz deviation

  • Frequency stability

    +/- 0.002%

  • Deviation

    +/- 75 kHz max. (Digital Hybrid Mode)

  • 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

  • Signal to Noise Ratio

    Off: 103.5 dB (no limiting); 108.0 dB (with limiting)
    Normal: 107.0 dB (no limiting); 111.5 dB (with limiting)
    Full: 108.5 dB (no limiting); 113.0 dB (with limiting)

  • Total Harmonic Distortion

    0.2% typical (400 Series mode)

  • Audio Input Jack

    Switchcraft 5-pin locking (TA5F)

  • Antenna

    Flexible, unbreakable steel cable.

  • Battery

    AA lithium, disposable

  • Battery Life with Lithium AA

    50 mW (2 x AA): 14.5 hours
    100 mW (2 x AA): 14 hours

  • Emission Designator

    180KF3E

Recorder

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  • Storage media

    microSDHC memory card

  • File format

    .wav files (BWF)

  • A/D converter

    24-bit

  • Sampling rate

    44.1 kHz

  • Recording modes/Bit rate

    HD mono mode:
    24 bit - 144 kbytes/s
    32 bit - 192 kbytes/s

    Split gain mode:
    24 bit - 288 kbytes/s
    32 bit - 384 kbytes/s

  • 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

  • Audio Performance

    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

    -20 to 50 deg. C (-4 to 122 deg. F)

General

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  • Dimensions

    2.37 x 2.48 x 0.64" (6.02 x 6.30 x 1.63cm) (without microphone)

  • Weight

    4.0 oz (113.40g) (with lithium batteries)

About Lectrosonics SMDWB

Be at the forefront of audio recording and transmission technology with the SMDWB Wireless Miniature Wideband Beltpack Microphone Transmitter and Recorder. This high-tech, advanced device is engineered to cater to professionals who demand both extended operating range and exceptional battery life for their dynamic audio needs.

Crafted for durability and portability, the SMDWB is a compact powerhouse, offering selectable output power levels of 25, 50, and 100 mW to balance the trade-off between operating range and battery longevity. With the ability to operate up to 14.5 hours, this transmitter ensures that you can capture high-quality audio throughout the most extensive live events or productions without interruption.

The SMDWB is designed with user convenience in mind, featuring hands-free setup and adjustment through audible tones, allowing for seamless integration into any production environment. The device's sleep mode is particularly useful for conserving battery life during pre-production when concealed within costumes, ready to be activated when the action commences.

Audio quality is paramount, and the SMDWB delivers with its input gain adjustment in 1 dB increments over a 44 dB range and an adjustable low-frequency audio roll-off. These features, combined with a DSP-based design, ensure compatibility with all Digital Hybrid receivers and backward compatibility with Lectrosonics 200 and 100 Series, IFB receivers, and some analog receivers from other manufacturers.

The SMDWB's input section showcases Lectrosonics' unique servo bias input circuitry, accommodating a variety of microphone types through a standard TA5M jack. An advanced DSP-controlled analog audio limiter safeguards the audio chain from overload, maintaining the integrity of your recordings even in the most challenging acoustic scenarios.

A water-resistant control panel with an intuitive LCD, membrane switches, and multi-color LEDs facilitates quick and precise input gain adjustments, frequency selection, and compatibility mode settings. The robust aluminum housing, finished with a special non-corrosive coating, stands up to the rigors of saltwater exposure and perspiration, making it an ideal choice for use in extreme environments.

For situations where wireless transmission is not required, the SMDWB excels as a standalone recorder, utilizing the industry-standard .wav (BWF) file format for seamless compatibility with audio and video editing software. With a vast frequency tuning range and 3072 selectable frequencies, this device is equipped to navigate the complexities of RF-intense, multichannel, and mobile venues, ensuring clear, interference-free audio capture in an ever-evolving digital landscape.

Elevate your audio recording and transmission capabilities with the SMDWB Wireless Miniature Wideband Beltpack Microphone Transmitter and Recorder, the perfect fusion of portability, performance, and professional-grade reliability.

Lectrosonics SMDWB Features

  • Selectable output power to maximize battery life or operating range
  • 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 standard frequency blocks
  • Update firmware in the field via Micro SD card reader
  • Alternate use as recorder on internal microSDHC memory card

Warranty Information

This product has a limited warranty of 12 months.

Product Documents

User Manual

Key Features

  • Wireless beltpack transmitter and recorder with expansive 537.600 to 614.375MHz frequency range
  • Long-lasting 14.5 hours battery runtime for extended recording sessions
  • Selectable output power levels (25, 50, 100 mW) for optimal range and battery life balance
  • Hands-free setup with audible tones and sleep mode for discreet, on-set integration
  • Robust DSP-based design compatible with a variety of Digital Hybrid and analog receivers
  • Water-resistant and rugged aluminum construction ideal for challenging production environments

What's in the box:

  • Lectrosonics SMDWB Wireless Miniature Wideband Beltpack Microphone Transmitter and Recorder
  • Antenna
  • Pouch
  • Spring Loaded Belt Clip
  • Connector Kit
  • Lectrosonics 1 Year Limited Warranty