• Lectrosonics - IFBT4-VHF Frequency-Agile Compact Transmitter

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

The Lectrosonics IFBT4-VHF transmitter was designed for use in broadcast, motion picture, theater, and stage applications where extended operating range and high-quality audio are essential. The transmitter can also be used as a stand-alone device or patched directly into popular intercom systems.

The transmitter features 50 mW power output for superior long-range use. A pilot tone signal controls the audio squelch on the receiver to eliminate noise when the IFBT4-VHF is turned off and prevents the receiver from locking onto false signals. The IFBT4-VHF incorporates a multi-use XLR input jack and DIP switches with settings for dynamic mic, line level, Clear Com® and RTS sources. In IFB mode, the system is optimized for vocal clarity.


Included Accessories

  • 1 - Pouch (Part #CCMINI)
  • 1 - Locking Power Cable With Pigtail (Part #21586)
  • 1 - Power Supply (Part #DCR12/A5U)
  • 1 - Transmitter Antenna (Part #A170AC)
  • 1 - Manual 
Specifications
Capacity Specifications

Operating Frequencies (MHz): 174.100 to 215.750 MHz

Available Frequencies: 239 Channel Spacing: 175 kHz

RF Power Output: 50 mW

Pilot tone: US: 25 to 32 kHz; 3.5 kHz deviation (in Nu Hybrid mode) E01, X: 29.997 kHz IFB & 400 mode; each frequency has a unique pilot tone

Spurious Radiation: US: Compliant with ETSI EN 300 422-1 v1.4.2 E01: Digital Hybrid Mode Compliant with ETSI EN 300 422-2

Modulation: E01: • IFB Mode: FM, ±20 kHz deviation X: • IFB Mode: FM, ±20 kHz deviation • Digital Hybrid Mode: ±75 kHz

Frequency Stability: ±.001% (10 ppm) @ 25° C

Temperature Stability: ±.001% (10 ppm) from -30° C to +50° C

Channel Selection: Momentary pushbutton switches, tune

Up and Down Compatibility Modes: US: IFB and Nu Hybrid E01, X: IFB and Digital Hybrid Wireless® (400 Series)

Audio Frequency Response: US: • IFB Mode: 100 Hz to 8 kHz, ±1 dB • Nu Hybrid Mode: 30Hz to 20kHz ±1dB response (see Rolloff) E01, X: • IFB Mode: 100 Hz to 8 kHz, ±1 dB • Digital Hybrid Mode: 30Hz to 20kHz ±1dB response (see Rolloff)

Rolloff: Low frequency audio rolloff is menu selectable for 3 dB down at 35 Hz or 50 Hz.

Output Impedance: 50 ohms

Audio Input Levels: • 0 dBu for Line, RTS1 & RTS2 • -10 dBu for Clear Com • -42 dBu for mic dry inputs (no phantom power) • +/-50Vdc max

Audio Input Config: Balanced and Unbalanced, rear panel selectable for Line, Mic. RTS 1, RTS 2, and Clear Comm Audio

Input Impedance: Greater than 2 K balanced, greater than 1 K unbalanced at any gain setting

Gain Control Range: -18 dB to +24 dB (0 dB nominal center), Menu selectable RF

Output Impedance: 50 ohms

Audio Input Jack: Standard XLR female connector

Input Power: 12 to 14 VDC typical, 200 ma. max.; Max. Input Range 6 to 18 VDC

Power Input Jack: Coax type, locking LZR RL26AE

Indicators: Backlit Liquid Crystal Display. Displays modulation meter, frequencies, modes, roll-off and audio level

Front panel controls: • MENU momentary pushbutton switch • Power OFF-TUNE-XMIT, 3 position slide switch • Select Up momentary pushbutton switch • Select down momentary pushbutton switch

Rear panel controls: Input Mode Select, 4 section DIP switch

Weight: 9.6 ozs. (272 grams)

Size: 5.25” L (including connectors) x 3.25” W x 1.25” H 133.35 L (including connectors) x 82.55 W x 31.75 H mm

Emission designator: US: 54K5F3E E01, X: 180KF3E

Lectrosonics - IFBT4-VHF Frequency-Agile Compact Transmitter

  • $1,245.00


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Tags: Lectro, IFBT4-VHF