RENT Lectrosonics IFBT4-20 IFB Transmitter (Frequency Block 20) and IFBR1B-A1 Rechargable Receiver Kit

Lectrosonics IFBT4-20 IFB Transmitter (Frequency Block 20) and IFBR1B-A1 Rechargable Receiver Kit

Rental Includes:

• (1) IFBT4 Transmitter w/ antenna, XLR input
• (2) IFBR1B-A1 Beltpack Receivers w/ cases
• (2) Dual-Battery USB chargers for Lectrosonics LB
• (6) Lectrosonics LB batteries
• (1) USB power adapter
• (2) USB cables

Download User Manual

Lectrosonics IFBT4-20 IFB Transmitter (Frequency Block 20) and IFBR1B-A1 Rechargable Receiver Kit

Lectrosonics IFBT4-20 IFB Transmitter (Frequency Block 20) and IFBR1B-A1 Rechargable Receiver Kit

Lectrosonics IFBT4-20 IFB Transmitter (Frequency Block 20)

The IFBT4 from Lectrosonics is a high-quality IFB transmitter designed for applications where long operating range and great audio quality are needed, such as broadcasting, film, and theater. The sleek, simple box 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.

The Digital Hybrid Wireless technology 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 easy to use, featuring a menu-based, microprocessor-controlled system that is navigated with momentary buttons. The backlit LCD is bright and clear for easy reading. The casing is constructed from rugged aluminum to withstand the rigors of professional use, and it is small enough to use in any situation.

• 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
• 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

Lectrosonics IFBR1B-A1 Receiver

The Lectrosonics IFBR1B is a compact bodypack IFB receiver featuring a removable, rechargeable battery. The receiver is compatible with IFBT4 transmitters, as long as there is frequency band overlap between the components, creating a wireless IFB (interruptible fold back) system to facilitate talent cueing and crew communications in broadcast and motion picture production.

The receiver will run for up to eight hours on the included rechargable LB-50 lithium-ion battery and the unit's LED will change from green to red to warn you when power is low.

The lightweight IFBR1B offers a compact, rugged machined-aluminum chassis with rounded edges, making it comfortable to wear and easy to conceal. A simple power/volume knob and intuitve controls with an LCD screen keep operation simple. 10 presets are available, allowing you to store frequencies in memory, even when the battery is removed, for quick setup on set.

The standard 3.5mm output can drive a wide variety of earbuds, headphones, and induction loops—from 16 to 600 ohms—at substantial volumes. Mono earpieces are automatically accommodated with no loss of audio output or battery life. The included wire belt clip makes it easy to secure the receiver to clothing.

Lectrosonics IFBT4-20 Specs
Operating Frequency	524.5 to 536.3MHz
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)
Lectrosonics IFBR1B-A1 Specs
Frequency Selection Steps	25 kHz or 100 kHz, Selectable
Frequency Bands	A1: 470.100 to 537.575 MHz
Signal to Noise Ratio	95 dB (A Weighted)
Squelch Quieting	90 dB
AM Rejection	50 dB, 10 uV to 100 mV
Modulation Acceptance	±20 kHz
Spurious Rejection	> 70 dB
Third Order Intercept	0 dBm
Frequency Response	100 Hz to 10 kHz (±1 dB)
Audio Output	1 V RMS into 50 Ohms Minimum
Antenna	Headphone Cable
Minimum Headphone Impedance	16 Ohms
Programmable Memory	10 Frequencies Stored as Presets
Controls	Top Panel: Single Knob Controls Audio Output Level and Power On Side Panel: Membrane Switches with LCD Interface for Frequency Selection and Preset Function
Indicators	Multicolor LED Indicator for Power On and Battery Status
Battery	LB-50 Li-Ion (Included) 3.6 V, 1000 mAH
Battery Life	8 Hours per Charge
Current Consumption	120 mA
Dimensions	2.8 x 2.4 x 0.8" / 71.1 x 61 x 20.3 mm
Weight	3.4 oz / 96.4 g