Gstar-2401HD 模组式有线电视前端主机、high quality 24 in 1 modulador catv en hd
- 产品品牌 九游会J9官网
- 产品型号 Gstar-2401
- 产品描述
Gstar-2401hd 一体化前端主机 是一个整合在4u 机箱,可以安装多达24片微处理器控制的固定频道调制模组、内置的声表面频道滤波器及有源混合放大器,消除了不必要的布线和潜在的连接问题,确保高输...
产品名称:24路有线电视前端主机,high quality 24 in 1 modulador catv en hd
产品型号:Gstar-2401
产品特点:
Gstar-2401hd 一体化前端主机 是一个整合在4u 机箱,可以安装多达24片微处理器控制的固定频道调制模组、内置的声表面频道滤波器及有源混合放大器,消除了不必要的布线和潜在的连接问题,确保高输出电平。AV及HDMI输入端口可选,是一款性能可靠的有线电视前端系统主机
The GSTAR-2401HD integrated front-end mainframe is a 4U chassis that can be fitted with up to 24 microprocessor-controlled fixed-channel modulation modules, built-in surface acoustic channel filters and active hybrid amplifiers, eliminates unnecessary wiring and potential connection problems to ensure high output levels. Av and HDMI input port optional, is a reliable cable TV FRONT-END SYSTEM HOST
技术指标:
固定频道(47~860MHz) |
CH1~CH56,Z1~Z43(PAL D); CHE2~E12,S1~S91(PAL B/G) |
输出电平 |
≥110dBμV |
输出电平可调节范围 |
0~-20dB (可调整) |
图像/伴音功率比 |
-10dB~-30dB 连续可调 |
输出阻抗 |
75Ω |
寄生输出抑制比 |
≥60dB |
图像载频准确度 |
≤±5KHz(VHF带内); ≤±10KHz(UHF带内) |
射频输出反射损耗 |
≥12dB(VHF带内); ≥10dB(UHF带内) |
视频输入电平 |
1.0Vp-p(对应于87.5%调制度) |
视频输入阻抗 |
75Ω |
微分增益 |
≤5%(当调制度为 87.5%) |
微分相位 |
≤5°(当调制度为 87.5%) |
色度/亮度时延差 |
≤45 ns |
视频带内平坦度 |
±1dB |
视频箝位能力 |
≥26dB |
视频调制度范围 |
0~90% 连续可调 |
视频信噪比 |
≥55dB |
2T脉冲K系数K2t |
≤4% |
音频输入电平 |
1Vp-p(±50KHz频偏) |
谐波失真 |
0.8% |
音频频率响应 |
±0.5dB |
输入阻抗 |
600Ω |
音频信噪比 |
≥57dB |
音频预加重 |
50μs |
电源供电 |
AC 220V±10% 50Hz±2Hz,50W |
工作环境温度 |
0~40℃ |
工作环境湿度 |
≤85% |
工作环境大气压 |
86 ~ 106Kpa |
体积 |
19英寸4U |
SPECIFICATION:
24 CHANNEL MODULATOR SYSTEM |
|
Model | Gstar-2401 |
Product24 | Channel Modulator System (Adjacent Channel SAW Filter Modulator) |
RF SPECIFICATIONS: | |
RF Output | Any channel between 47-862 MHz, E2-E69 |
Visual Carrier Output Level | >=110dBuV |
Visual Carrier Stability | <=3.8 KHz |
Output Level Adjustment | 0-15dBuV |
Adjacent Channel Rejection | >= 60 dB |
C/N Ratio | >= 60 dB |
VIDEO SPECIFICATIONS: | |
Input Level | 0.5 Vp-p (87.5 % modulation depth) |
Modulation Depth | 87.5 % |
Differential Gain | <= 3% |
Differential Phase Gain | <=3 |
Impedance | 75? |
Signal to Noise Ratio | 60 dB |
C/N Ratio | >= 60 dB |
AUDIO SPECIFICATIONS: | |
Input Level | 200 mVp-p (for +-25 KHz Deviation) |
Input Impedance | 10 K Unbalance |
Frequency | PAL B/G, 5.5 MHz+-5 KHz |
Frequency Response | +-1.0 dB |
Pre Emphasis | PAL B/G 75 uS |
GENERAL SPECIFICATIONS: | |
Power Supply | 180V-250V,50Hz,50W |
Dimensions and weight | 500(L)x185(W)x163(H), 10.0 Kg |
前端主机背部接口常备AV输入接口,可订制HDMI输入机型