Lectrosonics LT Beltpack Transmitter (B1: 537.600 to 614.375 MHz

Lectrosonics LT Beltpack Transmitter (B1: 537.600 to 614.375 MHz

Lectrosonics LT Beltpack Transmitter (B1: 537.600 to 614.375 MHz

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Product Highlights

  • For Broadcast, EFP and ENG Applications
  • 75 MHz Tuning Range
  • Digital Hybrid Wireless
  • Selectable 50 or 100 mW Power
  • Responds to Commands from Smartphone App
  • Mic and Line Inputs
  • Detachable Antenna
  • LCD Backlit Screen
  • Multi-Function Switch for Mute/Talkback
  • Rugged Machined Aluminum
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  • 1Description

The LT from Lectrosonics is a digital hybrid wireless beltpack transmitter with 75 MHz tuning bandwidth, a multi-function toggle switch, and the ability to respond to remote commands from RM or smartphone apps. It can be used to capture audio in environments for applications such as broadcast TV, theater, houses of worship, live stage, and more.

The LT has several other features to help you obtain good clear audio, such as selectable RF power at 50 or 100 mW, a compatibility mode to ensure analog receivers will work well with the transmitter, and a Servo microphone input allowing you to use a microphone or line level inputs.

In addition, the durable LT transmitter is enclosed in machined-aluminum housing. It has a detachable antenna that can easily be removed for transportation. An LCD and membrane switch interface make the LT transmitter easy to setup and simple to use. This transmitter operates in the B1 frequency range between 537.600 to 614.375 MHz.

In the Box
Lectrosonics LT Beltpack Transmitter (B1: 537.600 to 614.375 MHz
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description
    Channel B1
    Frequency Range 537.600 to 614.375 MHz
    Frequency Selection Steps: Selectable 25 or 100 kHz
    RF Power Output 50 or 100 mW
    Pilot Tone 25 to 32 kHz, 5 kHz deviation (Digital Hybrid mode)
    Frequency Stability ± 0.002%
    Deviation ± 75 kHz max. (Digital Hybrid mode)
    Spurious Radiation 60 dB below carrier
    Equivalent Input Noise -120 dBV (A-weighted)
    Input Level Mic: Nominal 2 to 300 mV, before limiting
    Greater than 1 V maximum, with limiting
    Instrument: 1 MOhm high level
    Input Impedance 2 kOhms
    Input Limiter DSP controlled, dual envelope "soft" limiter with greater than 30 dB range
    Gain Control Range 44 dB, digital control
    Modulation Indicators Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced to full modulation
    LCD bar graph
    Audio Performance
    Frequency Response 90 Hz to 20 kHz (+/-1 dB)
    Low Frequency Roll-Off -12 dB/octave, 70 Hz
    THD 0.2% (typical)
    SNR at Receiver Output SmartNR: Off 103.5 (no limiting) 108.0 (with limiting)
    Normal: 107.0 (no limiting) 111.5 (with limiting)
    Full: 108.5 (no limiting) 113.0 (with limiting)

    Note: The dual envelope "soft" limiter provides good handling of transients using variable attack and release time constants. Once activated, the limiter compresses 30+ dB of transmitter input range into 4.5 dB of receiver output range, thus reducing the measured figure for SNR without limiting by 4.5 dB
    Switch Controls Top panel slide switch; programmable as power, mute, talkback or no (off) function
    Side panel membrane switches with LCD interface for power on/off and all setup and configuration controls
    Audio Input Jack 1x Switchcraft 5-pin locking (TA5F)
    Antenna Galvanized steel, flexible wire
    Battery 2x AA alkaline, lithium, NiMH rechargeable
    Battery Life Duracell Quantum: 4.75 hours
    Eneloop 2400 mAH NiMH: 6 hours
    Additional Ports USB on side panel for firmware updates
    Dimensions (L x W x H) 2.85 x 2.45 x 0.75" (72 x 62 x 19 mm)
    Weight 5.9 ounces (169 grams), with alkaline AA batteries
    Packaging Info
    Package Weight 1.05 lb
    Box Dimensions (LxWxH) 9.8 x 7.8 x 3.0"
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