R300-E - 全指向性头戴式无线话筒系统 by Electro-Voice

R300-E

全指向性头戴式无线话筒系统

  • ClearScan:一键查找可用的最清晰通道;EZsync:接收器到发射器之间的红外通道传输,可以轻松设置,避免出错;两节AA碱性电池,可以持续供电14小时;结构坚固的金属腰包机,带背光LCD屏和电池电量表;32个预设通道,每8个通道为一个频段,供同时使用;腰包发射器带TA4连接头,能连接所有Electro-Voice领夹式和头戴式传声器,可轻松升级;可拆卸半波接收器TNC天线,支持APD4+天线分配系统;金属接收器机架,可选配机架安装前耳和前端安装天线电缆,HM-3全指向性头戴式传声器,声音清晰、连贯

BP-300是全新的金属腰包发射器,结构坚固紧凑,使用方便。BP-300使用两节AA电池,可连续使用14个小时,对于需要每天使用的场合来说是最经济的发射器之一。静音功能可保护音频通道,防止噪声干扰,同时射频信号仍保持活跃状态。TA4连接头可用于任何EV领夹式或头戴式传声器,适用于多种应用场合。R300系统的接收器可以简易放置于桌面上,也可以装在19"设备机柜中。对于专业安装,R300有机柜安装套件和前安装天线电缆可供选择。对于一个机架中有4个接收器的情况,单台APD4+天线分配器可提供天线分配和接收器供电。

Specifications

Connector Type 1/4 inch unbalanced, 3-pin XLR balanced
Family R300
Operating Temperature Range 5º - 45º C (41º - 113º F)

Case Material metal
RF Frequency Range 16
Signal-to-Noise Ratio (A-weighted) greater than 100
Power Requirement 12-16 VDC, 500 mA max
Controls on/off, Set, Up, Down, Sync
Antennas Flexible TNC 1/2 Wave
Number of Channels 32 per band, 8 Simultaneous
Diversity True Antenna
Squelch Tone code plus Amplitude
Receiver Type Synthesized PLL
RF Sensitivity (12 dB SINAD) less than 1.0
Audio Frequency Response 80 Hz - 18kHz +/-2dB
Balanced Line Level Output (RMS Adjustable) 10 - 100
Distortion (@ 1 kHz, 40 kHz deviation) Less than 1.0, 0.4 typical
Dynamic Range greater than 95
Power Supply 12 VDC, 500mA max
Polar Pattern Omnidirectional
Battery Life 14 hours with (2) AA alkaline typical
RF Output 8 mW typical
Element HM-3 Omni-directional headworn

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