IFBT2.0 Transmitter Base Station

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Lectrosonics

Band A1 (470-537 MHz)

Model:

IFBT2.0-A1

Release date:

Summer 2026 (pending FCC approval)

Price:	$3,649.00

Features

IFB and Point-to-Point applications
Two independent audio transmissions per 1/2 RU enclosure
Digital Hybrid Wireless® and IFB compatibility modes
USB-C port for firmware updates
Dante™ compatible
IR (infrared) port for fast setup with compatible receivers
User-selectable RF carrier per channel
Durable aluminum housing
Input configurations for Mic, Line, ClearCom, RTS1, RTS2, and AES digital
USB-C and Ethernet data connections
Compatible with Wireless Designer™ Software

Description

Overview

Designed as a successor to the IFBT4, the IFBT20 offers two transmitter channels, enhanced connectivity, updated interface, new form factor, and convenience features to the IFB product family. It has been designed to work with the IFBR1B and IFBR1C receivers and is ideal for Broadcast TV News & Production, Location Sound, and backstage communication.

The IFBT20 is also an ideal transmit base station for Point-to-Point audio using the full-fidelity Digital Hybrid Wireless® mode and compatible receivers. The IFBT20 includes a USB-C port for firmware updates and an IR port for fast setup with compatible receivers. A large, high resolution, backlit LCD and tactile push buttons provide an intuitive interface that is highly visible in daylight or dimly lit conditions.

The half-rack transmitter provides two audio inputs which can be individually configured to be analog or digital. The input connectors are full size XLR/TRS combo types for balanced mic, line level analog or AES3 signals, and are protected from DC on the signal lines.

Input preamp circuits use a special balanced amplifier with very high common mode rejection to minimize hum and noise. The modulated RF signal is filtered before and after amplification to suppress out-of-band noise and spurious signals. Dante inputs are included for installations with audio over IP.

The system is designed and developed with the rugged, durable packaging you’ve come to rely on. The transmitter chassis is all-metal. The front panel is an aluminum extrusion with a durable powder coat finish.

The IFBT20 half-rack transmitter features user-selectable transmission power to cover a wide variety of applications. Firmware updates are made via the USB-C port on the front panel of the housing via Wireless Designer software. The procedure is very simple using a standard USB-C cable connected to a Mac or PC.

Setup and adjustment are enabled through a backlit LCD, tactile buttons and an intuitive menu structure. Input gain is adjustable over a wide range in 1 dB steps to optimize modulation and limiting for maximum signal to noise ratio and minimum distortion.

Specifications

<RF Power Output>Two carriers; one audio channel each; IFBT20</RF Power Output> <Antenna Output>2 x BNC jacks</Antenna Output> <Operating Frequencies></Operating Frequencies> <IFBT20 Band A1>470.100 – 537.575 MHz</IFBT20 Band A1> <Band B1>537.600 – 607.950 MHz</Band B1> <IFBT20/E01 Band A1>470.100 – 537.575 MHz</IFBT20/E01 Band A1> <Band B1>537.600 – 614.375 MHz</Band B1> <></> <Frequency></Frequency> <Selection Steps>25 kHz</Selection Steps> <Frequency Stability>± 0.002%</Frequency Stability> <Modulation>FM</Modulation> <Emission Designator>110KF3E</Emission Designator> <Spurious Radiation>Compliant with ETSI EN 300 422-1</Spurious Radiation> <Equivalent input></Equivalent input> <Noise>–128 dBV</Noise> <></> <Latency></Latency> <Digital Source>2.3 mS to analog receivers (IFBR1B, IFBR1C)</Digital Source> <>3.6 mS to digital receiver in IFB mode (M2Ra)</> <>3.6 mS to Hybrid receiver in NU Hybr mode (Venue 2, LR)</> <Analog Source>1.2 mS to analog receivers (IFBR1B, IFBR1C)</Analog Source> <>2.5 mS to digital receiver in IFB mode (M2Ra)</> <>2.6 mS to Hybrid receiver in NU Hybr mode (Venue 2, LR)</> <></> <Audio Frequency Response></Audio Frequency Response> <IFB mode>100 Hz – 8 kHz, ±1 dB</IFB mode> <NU/EU Hybrid Mode>40 Hz – 20 kHz, ±1 dB</NU/EU Hybrid Mode> <></> <Audio Input Levels>0 dBu for Line, RTS1 & RTS</Audio Input Levels> <>-10 dBu for ClearCom</> <>-42 dBu for mic dry inputs (no phanton power)</> <>+/- 50VDC max</> <Audio Input Config>Balanced and unbalanced, selectable for Line, Mic, RTS1, RTS2 and ClearComm, or AES Digital (Dante selectable for RJ45 inputs)</Audio Input Config> <Audio Input Jack>2 x combo XLR/TRS/AES3 connectors</Audio Input Jack> <Audio Input impedance>Greater than 2K balanced; >1K unbalanced at any gain setting</Audio Input impedance> <Dante Connection>2 x RJ45, 4 audio RX channels, internally routable</Dante Connection> <Ethernet Connection>RJ45</Ethernet Connection> <USB Connection>USB-C on front panel for firmware updates via Wireless Designer</USB Connection> <IRDA>IR transceiver for receiver setup Headphone jack 3.5 mm stereo jack</IRDA> <Power Requirements>9-18 VDC via Hirose 4-pin connector</Power Requirements> <Power Consumption><10 Watts</Power Consumption> <Weight>2.2 lbs (997.903 grams)</Weight> <Dimensions>1.75" x 8.38" x 7.75" (44.45 x 212.7 x 196.8 mm)</Dimensions>

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Consumer Alert

Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device.

For more information, visit the FCC at www.fcc.gov or call the FCC at 1-888-CALL-FCC (TTY: 1-888-TELL-FCC).

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