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Lectrosonics IFBT4 Transmitter

Lectrosonics IFBT4 Transmitter
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Block 26 (665.6 - 691.1MHz).

A reliable, long range IFB UHF transmitter designed for use in broadcast, motion picture, theatre and stage applications. Can be used standalone or integrated into an intercom system.

The IFBT4 has a standard XLRF input jack and accepts mic (-42dBu) and line (0dBu) input levels, as well as a -10dBu level for Clear Com systems.


Operating Frequencies 665.600 - 691.100 MHz (Block 26).
Frequency Range 256 frequencies in 100kHz steps.
Output Power 250mW.
Compatibility Modes Digital Hybrid Wireless (400 series)
200 Series
100 Series
Mode 3
Mode 6
Pilot Tone IFB and 100 mode: 29.997 kHz.
400 and 200 mode: 32.765kHz.
Audio Input Jack Standard XLRF.
Gain Control Range -18dB to +24dB.
Input Power 6 to 18VDC. Coax type, locking LZR RL26AE power input jack.
Weight 255g.
Dimensions 133x82x32mm.

More Information

Learn more about the Lectrosonics IFBT4 Transmitter on the official product page.