Lectrosonics IFBT4 Frequency-Agile Compact IFB Transmitter
- Price: $845.00
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Usually ships in 7-10 days
Availability Details
CloseThis item is usually Drop Shipped from the MFR/Distributor within 7-10 days (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable and non-returnable.
International orders*
For international orders, credit cards will be charged at time you place your order.
Remember the Essentials
The external power supply is not included. Make sure you get the power supply you need.
The IFBT4 Frequency-Agile Compact IFB Transmitter from Lectosonics combines high-quality audio with an extended operating range to provide accurate and reliable sound transmission. In addition to serving as a standalone device, it can also be patched directly into many intercom systems. The transmitter uses Lectrosonics' Digital Hybrid Wireless System to transmit data to the receiver, combining the best of both analog and digital transmission.
The transmitter is easy to use and program on the fly, thanks to the high-contrast LCD that is visible even in sunlight. Its machined aluminum construction ensures durability so the transmitter will last many years, even in the most demanding environments.
Digital Hybrid Wireless Technology
- 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
256 UHF Frequencies In 100kHz Steps
- 256 UHF frequencies in 100kHz steps provide exceptional flexibility in coordinating frequencies in multi-channel wireless systems and avoiding interference from external RF signal sources and noise
Microprocessor-Controlled Operation
- 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. In the XMIT mode, the output is turned on and the frequency cannot be changed
250mW Power Output For Long-Range Use
- The transmitter delivers 250mW of output power which, when used with an efficient antenna, provides exceptional operating range with the R1A belt-pack receiver. Indoors, the signal will penetrate various surfaces and reflect from others efficiently to extend operating range and reduce the need for critical antenna positioning
Pilot Tone Squelch Control
- A supersonic pilot tone signal controls the audio squelch on the R1A receiver to eliminate noise when the transmitter is turned off and it prevents the receiver from locking onto false signals. The pilot tone also eliminates noise in the receiver at turn-on and turn-off
- Multi-use XLR input jack
- Built-in microphone preamp
DIP Switch Programmable Intercom Input
- DIP switch settings on the rear panel provide direct compatibility with RTS and Clear Com intercom systems. A preamp stage is also included in the input stage to allow direct connection to dynamic microphones in "standalone applications. Direct output at studio line level can also be fed directly into the transmitter
- Tx mute for frequency scrolling
Multi-Function LCD Display
- The LCD display is backlit for use in dimly lit conditions and is also highly visible in direct sunlight
Rugged Machined Aluminum Construction
- The transmitter housing is rugged, machined aluminum with an electrostatic powder coating and an anodized finish. The unit is powered by 6 to 18 Volts DC via a locking connector. The supplied whip antenna is a detachable, locking 1/4 wavelength flexible, galvanized steel cable that connects to a 50 Ohm BNC connector on the rear panel
| Operating Frequencies |
Block 21: 537.600 to 563.100 Block 22: 563.200 to 588.700 Block 23: 588.800 to 607.900, 614.100 to 614.300 Block 24: 614.400 to 639.900 Block 25: 640.000 to 665.500 Block 26: 665.600 to 691.100 Block 27: 691.200 to 716.700 Block 28: 716.800 to 742.300 Block 29: 742.400 to 767.900 Block 944: 944.100 to 951.900 |
| 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 77 °F (25 °C) |
| Temperature Stability | ±0.001% (10 ppm) from -22 to 122 °F (-30 to 50 °C) |
| 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 & 100 Mode: 29.997kHz 200 Mode: 32.765kHz 400 Mode: step selected |
| Modulation |
FM - IFB & 100 MODE: ±20kHz deviation FM - 200 & 400 MODE: ±75kHz |
| Audio Frequency Response |
IFB MODE System Response: 100 Hz to 8kHz, ±1 dB 200 & 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 (L x W x H) |
5.25 x 3.25 x 1.25" (13.34 x 8.26 x 3.18 cm)
1
Please Note:Length includes connectors close |
| Weight | 9.0 oz (255.15 g) |
Batteries & Power
Required item:
- Price: $25.95
Cables
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- Original: $14.99
- Save: $1.50
- Price: $13.49
Antennas
- Price: $214.99
This item is usually Drop Shipped from the MFR/Distributor within 7-10 days (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable and non-returnable.
Additional Hardware
- Price: $36.95
This is a special order item and is non-cancelable and non-returnable. Est. arrival at B&H is 7-14 days (subject to availability). Your order will be charged at time of shipment.
Transmitters & Receivers
- Price: $535.00
This item is usually Drop Shipped from the MFR/Distributor within 7-10 days (subject to availability). Your order will be charged at the time of placing the order with the vendor. Item is non-cancelable and non-returnable.
Mounting
- Price: $223.76
Microphones
- Price: $78.57
What's in the Box
- 1-Year Limited Warranty
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