Call Now: 1-800-284-2288 |
Frequency-Agile IFB Transmitter |
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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 directly into popular intercom systems.
Lectrosonics Digital Hybrid Wireless™ systems overcome channel noise in a dramatically new way, digitally encoding the audio in the transmitter and decoding it in the receiver, yet still sending the encoded information via an analog FM wireless link. This proprietary algorithm is not a digital implementation of an analog compandor but a technique that can be accomplished only in the digital domain, even though the inputs and outputs are analog.
Because it uses an analog FM link, Digital Hybrid Wireless™ enjoys all the benefits of conventional FM wireless systems, such as excellent range, efficient use of RF spectrum, and resistance to interference. However, unlike conventional FM systems, it does away with the analog compandor and its artifacts.
Microprocessor control provides user-friendly operation and eliminates transients at turn-on and turn-off. The transmitter output is muted in the TUNE mode to avoid generating interference in other wireless systems while scrolling up and down to change frequencies.
IFBT4 features include:
Operating Frequency | 563.2 to 588.7MHz |
Frequencies | 256 Channels Per Block |
Channel Spacing | 100kHz |
Spurious and Harmonic Suppression | 37dBc Above 1GHz |
Frequency Stability | ±0.001% (10 ppm) @ 25°C |
Temperature Stability | ±0.001% (10 ppm) @ -30 to +50°C |
Compatibility Modes | IFB, Digital Hybrid Wireless (400 Series), 100 Series, 200 Series, Mode 3, Mode 6 |
Pilot Tone | 29.997kHz IFB Mode, 32.765kHz 200 Mode, 400 Mode Step Selected, 32.768kHz Mode 6 |
Modulation | FM, ±20kHz Deviation IFB & 100 Mode, ±75kHz 200 & 400 Mode, ±50kHz Mode 3 and Mode 6 |
Audio Frequency Response | 100Hz - 8kHz, ±1dB IFB Mode 30Hz - 20kHz, ±1dB 200 & 400 Mode |
Low Frequency Roll-Off | 3dB Down @ 35 or 50Hz, Menu Selectable |
Signal to Noise Ratio | 90dB Typical, A-Weighted |
RF Power Output | 250mW, Nominal |
Output Impedance | 50 Ohms |
Audio Input Level | Line, RTS1, RTS2: 0dBu Clear Com: -10dBu Mic Dry Inputs: -42dBu |
Audio Input Impedance | Balanced: Greater than 2 kOhms Unbalanced: Greater than 1 kOhm |
Gain | -18 to +24dB, Software Selectable |
Connectors | 1 x XLR Input Connector 1 x BNC Antenna Connector 1 x DC Power Input |
Controls and Indicators | 4 x Mode Switches (For Selecting Type of Input Source) 1 x Menu Button 2 x Select Buttons (Up/Down) 1 x Off/Tune/Xmit Switch 1 x Backlit LCD Display |
Power | 12-14VDC, Typical, 200mA Max |
Dimensions (LxWxH) | 5.25 x 3.25 x 1.25" (133 x 83 x 32mm) |
Weight | 9 oz (255g) |
ifbt4.pdf | Datasheet |
Call Now: 1-800-284-2288 |
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Email Us: sales@avsupply |
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