Big operating range UHF full duplex wireless guide system TG 900 series

Product Overview

Description

 

 

 

Main features of two way tour guide system                                                      

• Full duplex wireless tour guide system speaker wear the master device, and visitors wear slave devices.
• Speaker and visitor could talking simultaneously, and other visitors will hear their talking.
• Each visitor could speaking by pressing “PTT”button of the slave device.
• The master device with "hang up" function, it could hang up the slave device which is speaking.
• Both master device and slave device built in high quality microphone.
• Easy to use, just need to connect earphone.
• UHF band, PLL synthesized design.         
• 128*64 dot matrix double-color OLED display.
• OLED display frequency, volume, microphone garn, battery, RF level, Audio level and overload prompt.
• Display of frequency, volume, battery, RF level, Audio level and microphone gain.
• Welcome LOGO display can be custom made.
• High performance double-IF circuit design.
• Adopt multi-stage high performance RF saw filter, high anti-interference performance to ensure mutiple channels can be used simultanously without interference.
• Built-in high performance audio compander, crystal sound like CD.
• 8 steps of RF signal strength display.
• 8 steps of audio level display, and audio overload prompt.
• 16 levels of digital volume control.
• 21 levels of squelch sensitivity control.
• 21 levels of microphone gain control, setting range as 0~+20dB.
• Quick mute function of microphone.
• Slave device with automated shutdown function.
• Wear by lanyard.
• High capacity lithium-ion battery, continuous operating time is more than 10 hours.
• Operating range is more than 100m (line-of-sight).

 

 

Application                                                                                

 

 

 

 

System Specification of two way tour guide system               

RF Carrier Frequency Range	UHF 780-800MHz / 850-870MHz
Oscillation Type	PLL Synthesized
Tunable Steps	25KHz
Frequency Stability	±0.005%(0~50)℃
Modulation	FM ± 45KHz deviation, compander system with pre-and de-emphasis
Intermediate Frequency(IF)	Double-IF 110.6MHz/10.7MHz
Image Rejection	>100dB
Spurious Rejection	>100dB
Audio Frequency Response	50~15000Hz±3dB
Total Harmonic Distortion	<0.5%@1KHz ±45KHz modulation
Signal-to-Noise Ratio	>90dB(A)
RF Power Output	10mW
Harmonic Suppression	>80dB
Audio Output	3.5mm stereo
Volume Control	16 steps digital volume control
Built-in Microphone	Φ9.7mm,unidirectional
Microphone Gain	0dB~+20dB(step=1dB,21 steps)
Display Screen	OLED 128*64 dot matrix Double Color
Power Supply	Built-in Lithium ion polymer battery,3.7v/1020mAh
Operation Time	About 10 hours
Operating Temperature	-10~60℃
Dimension	138*49*16mm
Weight	65g(With battery)
Operating Range	>100m (Environment dependent)

 

 

Optional Accessories of two way tour guide system