GONSIN TC-904 
IR Wireless Interpretation System


GONSIN TC-904 IR wireless interpretation system is designed to provide 4-channel audio distribution for simultaneous interpretation using the advanced infrared light transmission technology.

The system operates in the 2-6 MHz frequency band, immune to distortion from hall lighting and free from radio interferences, suitable for use in business and government conferences, international conventions and other multilingual applications. 


IR Transmitter  TC-Z904B
The TC-Z904V infrared transmitter is able to modulate and transmit 4 sound channels to different carrier independent audio output for sound recording.

- Modulation mode: FM
- Frequency synthesis: Digital PLL
- Frequency band: 2.0-6.0MHz
- Frequency response: 100-14KHz
- Frequency stability: 10ppm
- RF output power level: 700mV
- RF output impedance: 55-75 ohms
- Input impedance: 18k ohms
- Max. Input power level: 7.5V
- AGC range: 30dB
- S/N ratio: >75dB
- Power consumption: 40W
- Powe requirement: 110/240VAC, 50-60Hz
- Dimension: 430x99x325 mm (W*H*D) 


IR Radiator  TC-H35
The TC-H35 high-power infrared radiator can be switchable to 50% low power, making it suitable for use in larger halls and smaller rooms. The radiator is equipped with automatic gain control to ensure the infrared diodes function with maximum efficiency, and is naturally convection cooled for totally silent and maintenance-free continuous operation. It can be mounted on ceiling or wall for permanent installation, or set up on a tripod for portable use.

- Frequency band: 2.0-6.0 MHz
- IR output power: 35W
- Switchable output level: Low/High
- Coverage range: Up to 60 metres
- RF output impedance: 55-75 ohms
- RF input voltage: 100-2000mV
- Power consumption: 55W, Stand-by 8W
- Power Supply: 110/240VAC, 50-60Hz
- Cable: 75Ω-4 coax, BNC connectors
- Dimensions: 450x211x82mm(W*H*D) 


IR Receiver  TC-J904LC 
The pocket-size TC-J904LC infrared receiver is able to receive 4 audio channels. The unit is powered by rechargeable Lithium-ion battery pack. The selected channel number and battery level can be displayed on LCD screen. The user may listen to any selected language on a personal earphone. Volume level can be adjusted through a thumbwheel switch for comfortable listening. Any number of receivers can be used within the radiator's effective coverage range.

- Modulation mode: FM
- Frequency synthesis: Digital PLL
- Frequency range: 2.0-6.0MHz
- Frequency response: 100-14KHz
- S/N ratio: >55dB
- Frequency stability: 10ppm
- Power consumption: 50mW
- Battery: 3.7V rechargeable Li-ion
- Slide switch for power on/off
- Thumbwheel switch for volume control
- 3.5mm phone output jack
- Up/down push buttons for channel selection
- LCD shows channel number & battery level
- Pocket clip and lanyard for easy-wearing
- Integrated charging electronics & contacts
- Dimensions: 159x55x26mm(H*W*D)