Lectrosonics IFBT4 Frequency-Agile IFB Transmitter 470.100-495.600 MHz

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Lectrosonics IFBT4 Frequency-Agile IFB Transmitter 470.100-495.600 MHz
Operating Frequency 470.100 - 495.600 MHz
For Broadcast/Movie/Theater/Stage Use
Extended Operating Range
For Standalone Or Intercom System Use
Patented Digital Hybrid Wireless System
256 UHF Frequencies In 100kHz Steps
High-Contrast Multifunction LCD Display
Rugged Machined Aluminum Construction

Specifications

Operating Frequency : 470.100 - 495.600 MHz
Frequencies : 256 channels/block
Channel Spacing : 100kHz
RF Power Output : 250 mW
Spurious and Harmonic Suppression : 37 dBc above 1 GHz
Frequency Stability : +/-0.001% (10 ppm) at 25 oC (77 oF)
Temperature Stability : +/-0.001% (10 ppm) from -30 to 50 oC (-22 to 122 oF)
Channel Selection : Momentary pushbutton switches, tune up and down
Compatibility Modes : Digital Hybrid Wireless (400 Series), 100 Series, 200 Series, Mode 3, Mode 6, and IFB

Pilot Tone : IFB and 100 Mode - 29.997kHz, 200 Mode - 32.765kHz, 400 Mode - step selected
Modulation : FM - IFB and 100 MODE: +/-20kHz deviation, FM - 200 and 400 MODE: +/-75kHz

Audio Frequency Response :
IFB MODE System Response - 100 Hz to 8kHz, +/-1 dB
200 and 400 MODE System Response - 30Hz to 20kHz, +/-1 dB

Low Frequency Roll-Off : Menu selectable for 3 dB down at 35 Hz or 50 Hz
Signal-to-Noise Ratio : 90 dB typical ("A" weighted)
Audio Compression : IFB/100/200 Mode: 2 to 1
Output Impedance : 50 Ohms

Audio Input Level - Line, RTS1 & RTS2 : 0 dBu, Clear Com : -10 dBu, Mic Dry Inputs : -42 dBu (no phantom power), Max : +/-50 V dc
Audio Input : Balanced and Unbalanced, rear panel selectable for Line, Mic. RTS 1, RTS 2, & Clear Comm
Audio Input Impedance ; Balanced: > 2 K (at any gain setting), Unbalanced: > 1 K (at any gain setting)
Gain Control : -18 to 24 dB (0 dB nominal center)
Audio Input Jack : Standard XLR female connector
Input Power : Typical - 12 to 14 V DC, Maximum - 200 ma, Maximum Input Range - 6 to 18 V DC
Power Input Connection : Coax type, locking LZR RL26AE

Indicators :
MENU momentary push-button switch
Power OFF-TUNE-XMIT, 3 position slide switch
Select Up momentary push-button switch
Select Down momentary push-button switch

Controls : Rear Panel - Input Mode Select, 4 section DIP switch
Dimensions : 13.34 x 8.26 x 3.18 cm (5.25 x 3.25 x 1.25 in)
Weight : 255.15 g (9.0 oz)

In the Box

Pouch
Locking Power Cable With Pigtail
Power Supply
Transmitter Antenna

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