产品描述RS-7800无线麦克风是一款高性能的产品，该产品工作在UHF频段，带有真正的分集电路，理想环境有效接收距离可达200米，具有很强的抗干扰能力以及可靠的接收能力，适合用与对设备稳定性要求高的各种场合主要应用1演唱2会场演讲3各种会议特点UHF双通道真分集接收固定频点无线麦克风工作频段处于UHF 600-865MHz14个工作频点可供选择真分集接收电路，超远工作距离LCD液晶显示工作状态美观大方的手持麦克风可靠的SMT电路设计多级滤波加强抗干扰性外接TNC橡皮天线高性能音头每通道有独立的音量与静噪调节每通道有独立的平衡输出Specifications:
| 项目 | 接收机 | 发射机 |
| 物理性能概述 | 外壳 | 铝 / 钢 | ABS工程塑料 |
| 输出 | 混合输出 / 平衡输出 | |
| 温度 | 储存温度:-10-60 度工作温度:0-50 度 | 储存温度:-10-60 度工作温度:0-50 度 |
| 电性能概述 | 控制 | 音量控制 / 静噪控制 | 无 |
| 显示 | 液晶显示工作状态 | |
| 工作距离 | 真分集接收电路 | 理想情况下200米 |
| 工作电压 | 12V – 500mA | 1.5v AA电池 * 2 或者9v电池 * 1 |
| 电池寿命 | | >8小时 |
| 音频部分 | 频响 | 80-14kHz | |
| 系统失真. | 1kHz时在+/- 38kHz 调制度下<0.8% |
| 信噪比 | >85dB | |
| 动态范围 | >80dB | |
| 混合输出电平 | 在+/- 38kHz 调制度下 1kHz 音频输入, -2dBv |
| 平衡输出电平 | 在+/- 38kHz 调制度下 1kHz 音频输入, -7dBv |
| 音头种类 | 动圈（手持麦克风） / 电容 （领夹，头戴麦克风） |
| 指向性 | 心形（手持麦克风） / 全向（领夹，头戴麦克风） |
| 音头频响 | 80Hz-14kHz | |
| 射频部分 | 可选频率范围 | 620.00-865.00MHz | 620.00-865.00MHz |
| 振荡控制 | 晶体 | 晶体 |
| 频率稳定度 | 10ppm | 10ppm |
| 解调度 | 最大 45kHz |
| 灵敏度 | -105dB(sinad=12dB) | |
| 邻频干扰 | >90dB | |
| 镜像干扰 | >100dB | |
| 发射功率 | | 10mW-30mW |
Product descriptionRS-7800 wireless microphone system is a super quality wireless microphone design for users who require professional performance and reliable transmission. The system delivers perfect sound by using low interference UHF frequency band, and it is strong and reliable to meet various usages from small show to home use.Application:
SingingPresenter talk backConference speak
FeatureDual channel true diversity fixed frequency wireless microphone systemWorking at low interference UHF band (600-865MHz)14 frequencies availableLCD display working statueTrue diversity receiving and long working distanceSmart handheld microphone and rugged rack size receiver.Reliable SMT technologyDual filter design makes better anti-interference abilityExternal TNC rubber antennaHigh performance capsuleEach channel has individual volume and squelch control.Balanced and line output available.Specifications:
| Description | Receiver | Transmitter |
| General physicalspecification | Housing | Aluminum / steel | Molded ABS |
| Output | Line out / Balanced out | |
| Operation temperature | Storage:-10-60 degreeWorking:0-50 degree | Storage:-10-60 degreeWorking:0-50 degree |
| General electric specification | Control | Volume control / squelch control | No |
| Display | LCD displays | |
| Working distance | True diversity | >600 feet ideal |
| Supply voltage | 12V – 500mA | 1.5v AA battery * 2 or9v battery * 1 |
| Batterylife | | Typical: > 8hours |
| Audio | Frequency response | 80-14kHz | |
| T.H.D. | <0.8% at +/- 38kHz deviation with 1kHz tone |
| S/N Ratio | >85dB | |
| Dynamic range | >80dB | |
| Line out level | +/- 38kHz deviation with 1kHz tone, -2dBv |
| Balanced out level | +/- 38kHz deviation with 1kHz tone, -7dBv |
| Capsule style | Dynamic (Handheld) / Condenser (Belt-pack) |
| Direction | Cardioid (Handheld) / Condenser (Omni-direction) |
| Capsule frequency response | 80Hz-14kHz | |
| RF | Carrier frequency(available) | 620.00-865.00MHz | 620.00-865.00MHz |
| Oscillation | Crystal | Crystal |
| Frequency stability | 10ppm | 10ppm |
| Modulation | Maxim 45kHz |
| Sensitivity | -105dB(sinad=12dB) | |
| Spurious rejection | >90dB | |
| Image rejection | >100dB | |
| RF power | | 10mW-30mW |
点击图片查看原图