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Lectrosonics Lectosonics IFBT4-VHF Frequency Agile IFB Transmitter
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Lectrosonics IFBT4-VHF Frequency Agile IFB Transmitter

SKU: LEIFBT4VHF
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Questions & Answers

FAQ

What is the primary use of the IFBT4-VHF Frequency Agile IFB Transmitter?

The primary use of the IFBT4-VHF Frequency Agile IFB Transmitter is for talent cueing and crew communications in broadcast and motion picture production. It is also used by directors and other management to monitor program audio during a production.

Who can operate the IFBR1a-VHF receiver?

The IFBR1a-VHF receiver is designed to be intuitive and user-friendly, making it suitable for operators of all skill levels, including untrained users.

How many additional frequencies can be programmed into the receiver memory?

Up to five additional frequencies can be programmed into the receiver memory of the IFBT4-VHF Frequency Agile IFB Transmitter using the scan mode.

How can an operator navigate through stored frequencies?

If multiple frequencies are stored in the receiver, the operator can easily scroll through all stored frequencies by simply pressing the volume knob.

What makes the IFBT4-VHF Frequency Agile IFB Transmitter a top choice for professionals?

The IFBT4-VHF Frequency Agile IFB Transmitter is a top choice for professionals due to its robust and intuitive design, its ability to enhance communication and audio monitoring, and its advanced features like programming additional frequencies.

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Lectrosonics IFBT4-VHF Specifications

  • Operating Frequencies

    174.100 to 215.750MHz

  • Available Frequencies

    239

  • Channel Spacing

    175kHz

  • Frequency Control

    Crystal Controlled Phase Locked Loop

  • Sensitivity

    1 uv (20dB SINAD)

  • Signal/Noise ratio

    95dB A-weighted

  • Squelch Quieting

    90dB

  • AM rejection

    50dB, 10uv to 100mv

  • Modulation Acceptance

    +/-20kHz

  • Spurious Rejection

    Greater than 70dB

  • Third Order Intercept

    0 dBm

  • Frequency response

    100Hz to 10kHz, (+/-1dB)

  • Pilot Tone

    29.997kHz, 4.5kHz deviation (fixed crystal controlled)

  • Audio Output, Headphone

    1 Vrms into 50Ohms minimum

  • Antenna

    Headphone cable

  • Programmable Memory

    5 frequencies

  • Front Panel Controls

    Single knob controls Audio Output Level, Power on, programming and Scan Frequency Selection

  • Indicators

    1 tricolor LED Indicator for power on, blinks to indicate channel number, blinks fast during scan, and turns yellow or red for low battery

  • Power Requirement

    Single 9V Alkaline Battery for approximately 8 hours operation

  • Power Consumption

    60 mA

  • Allen Wrench for Knob

    0.035" (Lectro part number: 35854)

  • Dimensions (L x W x H)

    3.6 x 2.4 x 0.8" / 91.44 x 60.96 x 20.32mm

  • Weight

    7.3oz / 206.95g with battery

About Lectrosonics IFBT4-VHF

An essential tool in broadcast and motion picture production, the IFBT4-VHF Frequency Agile IFB Transmitter is a wireless IFB (interruptible fold back) system designed for seamless talent cueing and crew communications. This versatile device is also frequently utilized by directors and production management to monitor program audio in real-time during a production, ensuring the highest quality output.

The IFBR1a-VHF receiver, a key component of this system, is known for its simplicity and flexibility. It's designed to be intuitive, making it easy for even untrained users to operate effectively. The receiver's default frequency is easily set by two rotary switches located on the side panel, offering a user-friendly interface.

One of the standout features of the IFBT4-VHF Frequency Agile IFB Transmitter is its ability to program up to five additional frequencies into the receiver memory using the scan mode. This feature provides a level of customization and control that sets it apart in the market. If multiple frequencies are stored in the receiver, the operator can conveniently scroll through all stored frequencies with a simple press of the volume knob.

In summary, the IFBT4-VHF Frequency Agile IFB Transmitter is a robust and intuitive tool, designed to enhance communication and audio monitoring in broadcast and motion picture production environments. Its user-friendly design and advanced features make it a top choice for professionals in the industry.

Lectrosonics IFBT4-VHF Features

  • Digital Hybrid Wireless technology Microprocessor controlled operation
  • 50 mW power output for long range use
  • Pilot tone squelch control
  • Multi-use XLR input jack
  • Built-in microphone preamp
  • DIP switch programmable intercom input
  • Tx mute for frequency scrolling
  • Multi-function LCD display
  • Rugged machined aluminum construction

Warranty Information

This product has a limited warranty of 12 months.

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Product Documents

User Manual

Key Features

  • IFBR1a-VHF receiver provides simplicity and flexibility, ideal for operators of all skill levels
  • User-friendly interface with two rotary switches on the side panel for setting default frequency
  • Ability to program up to five additional frequencies into the receiver memory using scan mode
  • Easy frequency navigation with a simple press of the volume knob
  • Enhances real-time audio monitoring for directors and management during productions

What's in the box:

  • Lectrosonics IFBT4-VHF Frequency Agile IFB Transmitter
  • 1/4 Wave BNC Whip Antenna
  • AC Adapter
  • Lectrosonics 1 Year Limited Warranty