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Lectrosonics IFBT4 - Frequency-Agile Compact IFB Transmitter (Block 470 / 470-495 MHz)

 
  • Dale #:

    LECT-IFBT4470
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Description

The Lectrosonics IFBT4 UHF transmitter was designed for use in broadcast, motion picture, theater, and stage applications where extended operating range and high quality audio are essential. The IFBT4 can be used as a stand-alone device or patched dire Read More

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Description

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

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Product Specs

Operating Frequencies (MHz)Block 470: 470.100 - 495.600
Block 19:  486.400 - 511.900
Block 20:  512.000 - 537.500
Block 21:  537.600 - 563.100
Block 22:  563.200 - 588.700
Block 23:  588.800 - 607.900/614.100 - 614.300
Block 24:  614.400 - 639.900
Block 25:  640.000 - 665.500
Block 26:  665.600 - 691.100
Block 944: 944.100 - 951.900
Frequencies (Channels per block)256
Channel Spacing100 kHz (0.1 MHz)
RF Power Output250 mW
Spurious & Harmonic Suppression37 dBc above 1 GHz
Frequency Stability±.001% (10 ppm) @ 25° C
Temperature Stability±.001% (10 ppm) from -30° C to +50° C
Channel SelectionMomentary 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 Tone29.997 kHz IFB & 100 MODE, 32.765kHz 200 MODE, 400 MODE step selected
ModulationFM, ±20 kHz deviation IFB & 100 MODE, ±75kHz 200 & 400 MODE
Audio Frequency Response100 Hz to 8 kHz, ±1 dB, IFB MODE system response
30Hz to 20kHz ±1dB , 200 & 400 MODE system response
RolloffLow frequency audio rolloff is Menu selectable for 3 dB down at 35 Hz or 50 Hz.
Signal to Noise Ratio90 dB typical ("A" weighted)
Audio Compressor2 to 1 IFB, 100, and 200 Mode
Output Impedance50 ohms
Audio Input Levels0 dBu for Line, RTS1 & RTS2
-10 dBu for Clear Com
-42 dBu for mic dry inputs (no phantom power)
+/-50Vdc max
Audio Input ConfigurationBalanced and Unbalanced, rear panel selectable for Line, Mic. RTS 1, RTS 2, and Clear Com
Audio Input ImpedanceGreater 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 JackStandard XLR female connector
Input Power12 to 14 VDC typical, 200 ma. max.; Max. Input Range 6 to 18 VDC
Power Input JackCoax type, locking LZR RL26AE
IndicatorsBacklit Liquid Crystal Display. Displays modulation meter, frequencies, modes, rolloff, audio level, and tuning groups
Front panel controlsMENU momentary pushbutton switch
Power OFF-TUNE-XMIT, 3 position slide switch
Select Up momentary pushbutton switch
Select down momentary pushbutton switch
Rear panel controlsInput Mode Select, 4 section DIP switch
Weight9 ozs.
Size5.25" L (including connectors) x 3.25" W x 1.25" H

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