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Lectrosonics IFB T4-21

LECTROSON

BSW PART:
IFBT4-21

Block 21 IFB Transmitter, Base Station Type, Freq. (537.600 - 563.100 MHz)

Contact BSW for your pricing and shipping!

Contact BSW for your pricing and shipping!

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  • Main Features:
  • Digital Hybrid Wireless technology
  • Compatible with Lectrosonics 400 Series, 100 Series, 200 Series, Mode 3, Mode 6, and IFB
  • 256 UHF frequencies in 100kHz steps
  • Microprocessor controlled operation
  • 250 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
  • Locking whip antenna included
  • Specifications:
  • Frequencies (Channels per block): 256
  • Channel Spacing: 100 kHz (0.1 MHz)
  • RF Power Output: 250 mW
  • Spurious & Harmonic Suppression: 37 dBc above 1 GHz
  • 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 (6) Digital Hybrid Wireless(tm) (400 Series), 100 Series, 200 Series, Mode 3, Mode 6, and IFB
  • Pilot Tone: 29.997 kHz IFB & 100 MODE, 32.765kHz 200 MODE, 400 MODE step selected
  • Modulation: FM, ±20 kHz deviation IFB & 100 MODE, ±75kHz 200 & 400 MODE
  • Audio Frequency Response: 100 Hz to 8 kHz, ±1 dB, IFB MODE system response (see Rolloff) 30Hz to 20kHz ±1dB , 200 & 400 MODE system response (see Rolloff)
  • Rolloff: Low frequency audio rolloff is Menu selectable for 3 dB down at 35 Hz or 50 Hz.
  • Signal to Noise Ratio: 90 dB typical (“A” weighted)
  • Audio Compressor: 2 to 1 IFB, 100, and 200 Mode
  • 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
  • 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, rolloff, audio level, and tuning groups.
  • 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 ozs.
  • Size: 5.25” L (including connectors) x 3.25” W x 1.25” H