EJ-202IR

Infrared Microphone System

Description

The infrared receiver EJ-202IR is featured in 2 infrared microphone channels and allowing to be used at simultaneously or unlimited microphone to be operated at school classrooms without interferences or unsecured use in adjacent rooms. No worry for channel selection, unstable frequency interferences or installations!

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Features

Worldwide license free band
Support 2 microphone channels
Confidential and eavesdropping free
Various sensors for option to maximize room signal coverage
No interference with each other IR systems installed in adjacent rooms
Economic design for budgetary project

Specifications

Specifications	EJ-202IR
Infrared ray wavelength	850 nm
Carrier frequency	2.3 MHz (Ch. A); 2.8 MHz (Ch. B)
Receiving system	TRF (Tuned Radio Frequency)
Maximum deviation	50 kHz, with level limiting
Tone squelch frequency	32.768 kHz
Dynamic range	110 dB
T.H.D	< 1 %
Frequency response	70 Hz ~ 10 kHz
Ambient temperature	- 10 ℃ ~ + 50 ℃
Infrared sensor inputs	2 (F type connector)
Reception range	Approx. 20m (at Hi) / 15m (at Low); line-of sight
Dimensions(D x W x H)	230 × 140 × 47 (mm)
Weight	420 g