特点介绍: ? 适用于单向catv系统干线放大和延长放大; ? 采用进口集成电路,频带宽,增益高,噪声低,失真小,带内不平度小; ? 手动增益和斜率控制; ? 输出分支、分配可选; ? ac30-60v集中供电或ac220v独立供电可选择; ? 防雨、防尘、散热快、屏蔽性能好; ? 高效率r型变压器供电; ? 可选择两级斜率控制或温度补偿插件。 specifications: ? suitable for trunk amplification and extending amplification in single-way catv system ; ? imported ic, wide working band, high gain, low noise, small distortion, good flatness within-the-band; ? manual gain control and slope control; ? with the function of the choice of tap or splitter output; ? provide two power supply method,centralized(ac30-60v) or individual(ac220v); ? waterproof and dustproof design, fast heat dissipation and fine screening characteristic; ? efficient r-transformer power supply; ? two degrees slope conteol or plug-in temperature compensator for selection. 技术参数function parameter型号type 参数parameter | zy5534b | zy7530b | 频率范围(mhz) bandwidth | 45-550 | 45-750 | 标称增益(db) nominal gain | 30 | 带内平坦度(db) flatness band | ±0.5 | 标称输入电平(dbμv) nominal input level | 72 | 标称输出电平(dbμv) nominal output level | 102 | 最大输出电平(dbμv) max. output level | 116 | 增益调整范围(db) gain adjustment range | 0-20 | 斜率调整范围(db) slope adjustment range | 0-27(固定9db) | 噪声系统(db) noise figure | ≤8 | 载波复合三次差拍比(db) ctb | 66 | 65 | 载波复合二次差拍比(db) cso | 63 | 62 | 反射损耗(db) return loss | ≥16(45-550mhz) ≥14(550-750mhz) | 增益漂移(db) gain drift | ±1.0db(-25-55ºc) | 抗雷击能力(kv) thunderstroke immunity | ﹥5(10/700us) | 供电电压(v) supply voltage | ac30-60v 或or ac 220v±10% | 外形尺寸(mm) dimension | 220×150×75 | 重量(kg) weight | 1.9 | tel: 13953993413
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