供应:10000台
发货:3天内
特点介绍:l输出频率：47-750MHz（固定频道输出）；l中频信号处理，声表面滤波器SAW滤波；l频率合成型锁相环路控制，图像载波、伴音载波双重锁相；l19″标准机架，安装方便。SPECIFICATIONS：lFrequency range of the output port :47-550MHz (fixed channel output);lSWA filter is used in medium frequency processing;lFrequency composition Phase Look Loops control Video carrier wave and Audio carrier wave;l19″standard case, easy to install 输出频率：47-750MHz（固定频道输出）；中频信号处理，声表面滤波器SAW滤波；频率合成型锁相环路控制，图像载波、伴音载波双重锁相；19″标准机架，安装方便。技术参数Parameter
| 参数Parameter | 指标Specifications |
| 视频输入（峰峰值）Video Input Amplitude | 1Vp-p（all TV signal, positive） |
| 音频输入Audio Input Impedance | 0.775Vrms |
| 视频调制度Video Modular Depth | 87.5% |
| 视频带内平坦度Video Flatness Within-the-band | <±1dB |
| 微分增益Differencial Gain | ≤5% |
| 微分相位Differencial Phase | ≤5° |
| 色-亮时延差Chrominance-luminence Time Delay Inequality | <42ns |
| 频率准确度Frequency Accuracy | ≤5KHz |
| 输出频道Output Channel | 45-550MHz |
| 图像载波输出电平Video Carrier Output Level | ≥105dBμV |
| 输出电平调节Output Level Adjustable Range | 0-20dBμV |
| 音视频比A/V | -10∽-20dB |
| 寄生输出抑制Autoecious Output Depressing | ≥60dB |
| 射频输出阻抗RF Output Impedance | 75Ω |
| 音频额定频偏Max. Bia of Audio Frequency | ±50KHz |
| 供电Power Supply | AC220V 20W |
| 外型尺寸Dimension | 482.6mm×185mm×43.5mm |
