力卡UHF红外对频无线话筒　Relacart　OR-8810/OR-80H/OR-80T

OR-8810(多频道天线分集接收机)
OR-80H(手持式麦克风)
OR-80T(腰包式领夹咪)

Wide band UHF frequency delivery(UHF宽频段传送)
      OR-8810系统采用UHF频段传送信号，该频段介于700MHz~920MHz之间;UHF频段可以使无线麦克风避免信号堵塞或被其它频率的信号干扰，具有专业技术的自动频率调整装置接收机（专业号：20059753.6）自动扫描整个接收频带，并自动调整到外界不受干扰的频率，然后采用红外线传输方式将频率设置参数发送发射器，令发射器按照接收机所设定的频率去锁定。
       This system uses the UHF to delivery. The frequencyis between 700MHz~920MHz .UHF makes the wireless microphone avoid the traffic jam of the frequency and the interrupts from the other kind of frequency Having the automatic frequency seleting device (patent number 20059753.6), the receiver scan the band width and adjust to the frequency which without any interfere. And then send the data to transmitter through IR. The transmitter set up the frequency according to the receiver’s.

功能特点
■ PLL锁相环频率合成技术
PLL相位锁定线路系统控制无线话筒信号发射和接收；频率稳定，接收信号顺畅
■ CPU控制整个系统由微电脑控制
■ LCD显示所有菜单条目都可以显示在LCD屏幕上
■ 30个频点可调，红外线对频技术进行频率转换

Features
■ PLL synthesized
PLL Phase Locked Loop system controls the wireless system to send and to receive the signals.
The frequency is stable and receiving fluently.
■ CPU control
The whole system is controlled by the micro computer.
■ LCD display
All of the menu items can be display in the LCD screen.

Techniacl Specifications
■ Main Frame Size(机箱规格)：ELA standard 1/2-rack unit
■ Channels(频道组数)：Multi channel
■ Carrier Frequency Range(载波频段)：UHF 600~900MHz
■ Receiving Mode(接收方式)：Antenna-Diversity receiving
■ Oscillation(振荡方式)：PLL synthesized
■ Sensitivity(灵敏度)：在偏移度等于25KHz,输入6dBμV时S/N＞60dB
■ Max. Deviation Range(最大偏移度)：±50KHz
■ Band width(频带宽度)：10MHz
■ 综合S/N比：＞90dB
■ 综合T.H.D.:＜1.5%@1KHz
■ Frequency response(综合频率响应)：75Hz~18KHz±3dB

 OR-80T Body-Pack Transmitter(腰包式发射器)
■ Carrier Frequency Range(载波频段)：UHF600~900MHz
■ Oscillation(振荡模式)：PLL synthesized
■ Carrier Frequency Power(载波功率)：7mW
■ Harmonic radiation(谐波辐射)：＜-80dBm
■ Max. Deviation Range(最大偏移度)：±50KHz
■ Microphone Head(音头)：Dynamic
■ Battery Type(使用电池)：one 9V battery
■ Current consumption(电流消耗)：＜35mA