Lectrosonics IFBT4-944, IFB TX, BASE STATION TYPE, DIGITAL HYBRID (Frequency Block 944)
Vendor: Lectrosonics
Available
Lectrosonics IFBT4, IFB TX, BASE STATION TYPE, DIGITAL HYBRID (Frequency Block 944)
The Lectrosonics IFBT4-944 is a high-quality IFB transmitter with a unique design for applications where long operating range and great audio quality are needed, such as broadcasting, film, and theater. The sleek, simple box of the Lectrosonics IFBT4-944 can be used as a stand-alone unit or patched into other widely-used intercom systems. The single XLR input connector is accompanied by four DIP-switches for selecting a mic, line, Clear-Com, RTS1, or RTS2 audio source. Also, it has a Digital Hybrid Wireless technology that allows the system to overcome channel noise by digital encoding and decoding audio in the transmitter and receiver but sending the encoded signal over an analog FM signal. Due to the FM link being used, the system has all the benefits of traditional FM systems, including high range and resistance to interference, but thanks to the digital technology, the analog compander and artifacts are removed for greater audio quality. The system is very easy and friendly to use, featuring a menu-based, microprocessor-controlled system that is navigated with momentary buttons. The Lectrosonics IFBT4-944 has a bright backlit LCD for easy reading. The casing of the Lectrosonics IFBT4-944 is constructed from rugged aluminum to withstand the rigors of professional use, and it is small enough to use in any situation.
Note: FCC Part 74 prohibits the use of frequency band 944 without a Broadcasting License. Unlicensed users run the risk of being fined.
Lectrosonics IFBT4-944 Main Features
- Sleek, easy to use IFB transmitter with long-range, terrific audio, and low distortion
- Digital Hybrid Wireless technology combines digital and analog technologies to reap the benefits of both
- Choose from 256 UHF frequencies in 100kHz steps
- Microprocessor-controlled with easy-to-use menu-based navigation
- Standard 3-pin XLR jack can accept mic, line, Clear-Com, RTS1, and RTS2 signals
- The output power of 250mW for long-range transmission, BNC antenna included
- Built-in mic preamp
- Pilot tone squelch control
- Frequency scrolling with Tx mute
- Easy-to-read LCD Display
- Compact and rugged aluminum housing
- Frequency Block 944
- Requires Broadcasters License
Operating Frequency | 614.4 to 639.9MHz |
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) |