加拿大28一天开多少期

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干线放大器的这些基础知识你都了解吗?
浏览:82 发布日期:2019-10-16


  在遇到室内信号盲区的时候,我们通常会使用干线放大器,通过放大信号源解决问题,但是你知道关于干线放大器的这些相关知识吗?和无线对讲系统加拿大28一天开多少期开发商一起来了解一下吧:

  一、概述

  GANXIANFANGDAQI,JIANCHENGGANFANG,SHIZAIGONGLVBIANDIERBUNENGMANZUFUGAIYAOQIUSHIDEXINHAOFANGDASHEBEI。DANGXINHAOYUANSHEBEIGONGLVNANYIDADAOFUGAIYAOQIUSHI,GAISHEBEIKEYIFANGDAXINHAOYUAN(YIBANSHIWEIFENGWO)DEGONGLV,YIFUGAIGENGDUODEQUYU。GANXIANFANGDAQIYIBANZHUYAOYONGYUPEIHEWEIFENGWOJIZHANHUOZHIFANGZHANJIEJUESHINEIXINHAOMANGQUDESHEBEI,CAIYONGSHUANGDUANKOUQUANSHUANGGONGSHEJI,NEIZHIDIANYUAN,ANZHUANGFANGBIAN,KEKAOXINGGAO,SHUZIYUMONIXITONGJIANRONG。RUOZUOWEIFENBUSHISHINEIFUGAIXITONGSHIYONG,TAMENYEKEYONGZUOXIANLUZHONGJIFANGDAHUOYANSHENFANGDA,FUGAIQUYUMIANJIKEDASHUWANPINGFANGMI。GANXIANFANGDAQIZHUYAOYONGYUWUYUANSHINEIFENBUXITONGZHONGBUCHANGYOUYUXINHAOCHUANSHUHEFENPEIERYINQIDEGONGLVSHUAIHAO。YOUXIAOBIMIANSHINEIFUGAIXITONGZHONGYOUYUDUOJIFANGDA,ZAOSHENGDIANPINGLEIJIERYINQIDETONGHUAZHILIANGCHADEWENTI。GANXIANFANGDAQIWEIYOUYUANQIJIAN,ZAICAIYONGGANXIANFANGDAQIDESHINEIFENBUXITONGZHONGXUYAOKAOLVGANFANGDEZAOSHENGXISHUDUIYUFENBUXITONGXIAXINGDELINGMINDUYINGXIANGHEDUIYUZHENGGEFENBUXITONGSHANGXINGDEZAOSHENGTAIGAO。GANFANGDESHANGXIAXINGZENGYIDIAOJIE,JIYAOBAOZHENGSHANGXINGZENGYIBUNENGGUOGAOYINGXIANGXITONGXINGNENG,XIAXINGZENGYIBAOZHENGFANGDAZHILUDETIANXIANKOUYOUXIAOFASHEGONGLV,YOUYAOZHUYISHANGXIAXINGZENGYIDIAOJIESHIDUBAOZHENGSHANGXIAXINGPINGHENG。

  二、图片


无线对讲系统

无线对讲系统



  三、性能特点

  1、CAIYONGXIANJINDELVBOJISHU,DAIWAIYIZHIDUGAODIANCIJIANRONGYOUHUASHEJI,DIZAOSHENG、DIZASANDAINEIBODONGXIAOCAIYONGALCJISHU,SHUCHUDIANPINGLIANXUKEDIAO,ZIDONGWENFU。

  2、CAIYONGXIANJINDESANREJISHU,JIQIYUNXINGHOUWUZAOSHENGWURANWANSHANDEBENDIHEYUANCHENGJIANKONGGONGNENG。

  3、ZHONGLIANGQING,TIJIXIAO YOUHUADEANZHUANGSHEJI,GONGCHENGANZHUANGJIANDANFANGBIAN。

加拿大28一天开多少期  4、CAIYONGSHUANGDUANKOUQUANSHUANGGONGSHEJI,NEIZHIDIANYUAN,KEKAOXINGGAO,SHUZIYUMONIXITONGJIANRONG。

  四、技术指标


项目

单位

性能参数

频率范围Frequency Range

MHz

45-550MHZ

45-750MHZ

45-860MHZ

标称增益Rated Gain

dB

30

带内平坦度Flatness In Band

dB

±0.5 ±0.75

标称输入电平Rated Input Level

dBμV

72

标称输出电平Rated Output Level

dBμV

102

增益调节范围Gain Adjustable Range

dB

0~20

斜率调节范围Slope Adjustable Range

dB

0~27(后均衡9dB)

噪声系数Noise Figure

dB

≤10

载波组合三次差拍比(84个PAL-D) Composite Triplee Beat (84PAL-D

dB

71

载波组合二次差拍比(84个PAL-D) Composite Second Order (84PAL-D

dB

68

温度补偿范围Temperatre Compensate Range

dB

±1.5

反射损耗Noise Figure

dB

≥14

抗雷击能力Thunder Stroke Immunity

KV

5 (10/700μS)

电源电压Power Voltage (50Hz)

V

A:~220V±15% B:~(30-60)V

功耗Power Consumption

VA

15

外型尺寸Dimension

mm

 

 

 


  五、经验总结

  ZAIANZHUANGGANXIANFANGDAQISHI,SHURUGONGLVBUNENGGUOGAO,FOUZEHUISHAOHUAIGANFANG。15wGANFANGDESHURUGONGLVYIBANWEI0.5wZUOYOU,5wGANFANGSHURUGONGLVYIBANWEI0.3wZUOYOU。