GONSIN TC-RF02/04/06/08/10/12/16 digital DSSS simultaneous interpretation system utilizes the worldwide unlicensed 2.4GHz ISM frequency band and incorporates a robust Direct Sequence Spread Spectrum (DSSS) radio technology to deliver crystal clear CD quality sound, provide excellent immunity from both noise and interference, and insure high security against unauthorized listening. The system is designed to offer distortion-free wireless communication for simultaneous interpretation and language distribution in 2/4/6/8/10/12/16 different operating channels, with working range up to 50 to 300 meters, ideally suited for use in business and government conferences, international conventions and other multilingual applications. TC-RFZ02/04 DIGITAL CONTROL UNIT The microprocessor based TC-RFZ02/04 digital control unit is able to transmit 2 or 4 signal channels, featuring independent channel level control, independent channel output level indicators, and independent channel signal outputs for sound recording. Via a DB25 cable, multiple interpreter consoles can be connected to digital control unit in a daisy-chain, and multiple control units can be cascaded together to transmit up to 16 signal channels in a system. - Frequency range: 2400-2500 MHz - Frequency response: 20Hz-20kHz - Distortion at 1 kHz: <0.5% - Channel separation: >70dB - RF output power level: 700mV - RF output impedance: 50 ohms - Input impedance: 18k ohms - Max. Input power level: 3.5V - S/N ratio: >75dB - Power consumption: 60W - Power requirement: 110/220V, 50/60Hz TC-RFF01/02 RF ANTENNA UNIT TC-RFF01/02 high-gain directional antenna unit is designed for 1 or 2 operating channels, suitable for both indoor and outdoor applications. The digital control unit provides the DC power to the antenna unit via SYV 50-7 coaxial cable with N-type connector. The unit can be mounted on wall, ceiling or tripod stand. - Signal Type: DSSS - Frequency range: 2400-2500 MHz - Impedance: 50 Ohms - Polarization: Vertical or horizontal - Feed cable: SYV 50-7 coaxial - Connectors: N-type female TC-RFJ02/04/06/08/10/12/16 DIGITAL RF RECEIVER The portable TC-RFJ02/04/06/08/10/12/16 digital RF receiver is designed to support 2/4/6/8/10/12/16 different operating channels, and each channel utilizes DSSS with a unique spreading code, offering crystal-clear reception and CD-quality sound with sampling rate at 44.1kHz. The unit is powered by a more environment-friendly rechargeable Lithium-ion battery. The ed channel number, battery level and RF signal strength are shown on LCD screen. Equipped with individual wireless RF receivers, participants can listen to any ed language channel on a personal earphone, monitor the battery status, check whether or not the unit is receiving the signal properly, and adjust volume level for comfortable listening. Any number of receivers can be used in an installation. The RF receivers are protected against interference other mobile equipment. The digital encryption of the transmitted data ensures high security against unauthorized listening. Only those receivers with the correct digital encryption key are allowed to receive and decode the transmitted signals. Non-authorized receivers will only be able to detect a noise signal. - Frequency range: 2400-2500 MHz - Frequency response: 20Hz-20kHz - Distortion at 1 kHz: < 1.0% - RF output power level: 700mV - RF output impedance: 50 ohms - Input impedance: 18k ohms - Max. Input power level: 3.5V - S/N ratio: >55dB - Power consumption: 0.2 W - Battery: 4.2V rechargeable Lithium-ion