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IFBT2.0

IFBT2.0

UHF Dual-Channel IFB Rack Transmitter

Models: IFBT20-A1, IFBT20-B1, IFBT20/E01-A1, IFBT20/E01-B1, IFBT20/E01-C1, IFBT20/E07-A1, IFBT20/E07-B1

  • RF power settings at 10, 25, 50, 100, and 250 mW (North American versions), and 10, 25, and 50 mW (International versions).
  • AES and Dante digital connectivity
  • Analog mic level, line level, ClearCom and RTS inputs, including DC blocking for “wet” signals
  • Menu-driven control for RF power, frequency, compatibility modes, transmit status, input type, test tone generation, and more
  • Wireless Designer compatible (WD v2.1.10 and higher for both Mac and PC)
  • USB-C for Wireless Designer connection and firmware updating
  • Ethernet connection for control/programming via Wireless Designer software
  • Circulator/Isolator for high RF power with minimal intermodulation products generated
  • ½ rack enclosure with two independent transmitters – equals rack density of shelf-mounted IFBT4 (4 channels in 1RU).
  • Ultra-quiet fan cooling for use in difficult environments
  • Ideal as a point-to-point audio transmitting using NU/EU Hybrid modes for full fidelity

The new IFBT2.0 is designed with broadcast studios and location sound mixing carts in mind with a ½ rack, dual-channel transmitter, equaling the rack density of the older T4 units. The IFBT2.0 has enhanced, menu-selectable input connectivity including analog line and mic level, Dante™ and AES digital, Clear-com, and RTS. The inputs are compatible with “wet” signals, allowing for use with connections where DC is present on the audio lines. The new unit also includes USB-C and Ethernet connections for use with Wireless Designer software for system monitoring, frequency coordination, and setup.

The IFBT2.0 offers IFB and NU/EU Hybrid compatibility modes for use with all prior Lectrosonics IFB receivers including IFBR1, IFBR1A, IFBR1B, IFBR1C (IFBlue) units, along with any Hybrid receiver from Venue and Venue 2 to UCR411a, R400a, and LR, and any Digital receiver with Hybrid compatibility including DCR822, DSR, DSR4, M2Ra, and DSQD.

The Circulator/Isolator in the RF output on each channel acts as a one-way valve for RF, preventing external signals from entering the transmitters. This greatly reduces the generation intermodulation products, allowing for tighter frequency coordination, even with higher RF powers. The IFBT2.0 offers user selectable RF power settings at 10, 25, 50, 100, and 250 mW (North American versions), and 10, 25, and 50 mW (EU versions).

While designed for use as a primary IFB base-station transmitter for broadcast studios and film/TV sets, the IFBT2.0 is equally at home as an audio point-to-point audio transmitter with excellent audio fidelity using NU/EU Hybrid compat mode (flat from 40-20 kHz, with no audio companding).

Included Accessories

  • DCR15/1A8U-H power supply (Hirose 4-pin DC connector)
  • Half the rack hardware needed to mount two units together
  • Two A500RA antennas appropriate for the frequency range

Accessories

Below is a link to the current firmware update file for the IFBT20, IFBT20/E01 and IFBT20/E07 transmitters. This is a zip file, after downloading extract it into a temporary folder. Use the Wireless Designer™ program to update firmware. Instructions are found here.

Note: This is a link to the Wireless Designer firmware update file, which bundles the latest firmware for multiple products.  Wireless Designer will automatically choose the right firmware images from the file.

TitleFile SizeFile TypeDateFilenameLink
Firmware for Units Updated with Wireless Designer34 MBzipJune 25, 2026wd_v10Jun2026.zip

WD Firmware Update v10Jun2026

IFBT20 v1.0.02 (SUPER)/v1.00 (FPGA)/v1.00 (RF)
IFBT20/E01 v1.0.02 (SUPER)/v1.00 (FPGA)/v1.00 (RF)
IFBT20/E07 v1.0.02 (SUPER)/v1.00 (FPGA)/v1.00 (RF)

  • Initial production release.