Wireless IFB Equipment
IFB stands for “Interruptible Fold Back.” The name arose from broadcast applications where the audio from the program being produced was fed back to on-camera talent via an earphone of some type. The program feed was interrupted by the producer to cue the talent for scene changes, etc. as the production was in process.

IFB systems are used for a wide variety of applications ranging from film and television production, to live sound and theater, and with tour guides and language interpretation. The system provides high quality distribution of audio via an RF link with a receiver on each listener at distances up to 2500 ft. or more.

All Digital Hybrid Wireless transmitters will operate in IFB mode.

	R1a BELT-PACK IFB RECEIVER 256 UHF frequencies in 100kHz steps provide exceptional flexibility. Default frequency can be set without power or transmitter signal. Automatic scanning to locate and store new signals. Supersonic pilot tone signal controls the audio squelch. Compandor noise reduction. Powered by alkaline or lithium 9 volt battery. Mono/stereo compatible 3.5 mm headphone output jack. Uses headphone cable as antenna. Available on blocks of 256 frequenices from 537.600 to 588.700 MHz and 614.400 to 793.500 MHz. Specify frequency block when ordering
	T1 COMPACT IFB TRANSMITTER 256 UHF frequencies in 100kHz steps provide exceptional flexibility. 250mW output power. Compandor noise reduction. Direct compatibility with RTS and Clear Com intercom systems. Powered by 12 to 14V DC via a locking connector. Available on frequency blocks from 537.600 to 588.700 and 614.400 to 793.500 MHz. Supplied with CH20 110V AC power supply, A500RA flexible whip antenna and 21586 power adapter cable. Specify frequency block when ordering.
	T2 Belt-Pack Transmitter Replaced by LM Digital Hybrid Wireless belt-pack transmitter.