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行业动态

常州卫星电视安装信号差有哪些原因

作者:admin123 来源: 日期:2016/1/22 8:13:55 人气:70 评论:0 标签:

WEIXINGDIANSHIXINHAOZHILIANGXIAJIANGBIAOXIANWEIMASAIKEZENGDUO、TINGTINGDUNDUN、JIESHOUJISHISUOSHENZHISIJIJIRENDEDIYIGANJUEKENDINGSHIHUAIYIDIANSHITAIHUOWEIXINGYOUWENTI——SHIQIFASHEDEDIANSHIXINHAOGONGLVJIANGDISUOZHI。SHISHISHANGZHENGXIANGFAN,ZHENZHENGYOUYUWEIXINGDIANSHISHANGXINGFASHEZHANHUOWEIXINGDEYUANYINZAOCHENGXINHAOGONGLVXIAJIANG。YIZHIJIESHOUZHILIANGJIANGDIDEQINGKUANGZAISHIJIZHONGHENSHAOJIAN,CHANGJIANDEDUOSHIYOUYUZISHENJIESHOUYUANYINSUOZHI。ZHENGGEJIESHOULIANLUHUANFUJIAODUO,HENDUOQINGXINGDOUHUIZAOCHENGXINHAOZHILIANGDEXIAJIANG,YINCICHUXIANWENTISHIDOUXUYAOKAOLV、ZONGHEFENXI,BUNENGJIANDANDIGUIJIUYUSHIDIANSHISHANGXINGZHANHUOWEIXINGZAOCHENG。

英超下注XIAMIANJIANGZONGHEFENXIYIXIAXINHAOZHILIANGXIAJIANGDEYUANYIN,GONGDAJIACANKAO。

SHOUXIANKENDINGYAOXIANPAICHUZISHENYUANYIN,ERHOUZAIHUAIYIKENENGSHIWEIXINGHUOSHANGXINGZHANCUNZAIWENTI。

ZISHENYUANYIN

HENJIANDAN,ZISHENYUANYINJIUSHIYOUYUZIJIRENWEIHUOSHEBEIYUANYINZAOCHENGDEGUZHANG。

1、RENWEIYUANYIN

A、XUANYONGDETIANXIANSHIFOUGUOXIAOHUOSHIZHILIANGJIAOCHA

TIANXIANDEXUANZEFEICHANGZHONGYAO,YUANZEYINGSHI:BIXUXUANYONGZHILIANGHAO、JINGDUGAO、DUIJIAOZHUNDETIANXIAN。ZUOWEIGETIJIESHOUBUNENGMANGMUZHUIQIUGENGXIAOCHICUNTIANXIAN,DANYEBUNENGMIXINDAKOUJINGTIANXIAN。JINGDUBUGOU、DUIJIAOBUZHUNDE1MIKuDANSHOUTIANXIANKENENGHAIBURU0.75MITIANXIANJIESHOUDEXINHAOQIANG。JIAOXIAOKOUJINGDETIANXIANGURANANZHUANGFANGBIAN、JIESHENGFEIYONG,DANSHAOYOU“FENGCHUICAODONG”,RUTIANQIBUHAO,XINHAOSHOUGANRAODENG,MASAIKEXIANXIANGHUILIKECHUXIAN。TIANXIANKOUJINGXUANZEGUODA,JIESHOUYULIANGDUODUO,WEILETIGAOKEYONGDUZUOWEIZHUANYEJIESHOUNEISHIBIXUDE,DANZUOWEIGETIJIESHOUSHIBIHUIZAOCHENGBUBIYAODEZHICHU。

英超下注WEIXINGGONGSI(HUODIANSHITAI)YIBANHUIGENJUWEIXINGFUGAICHANGQIANGDEBUTONGJILINXINGXIEDIAODENG,JICHUYIGEBUTONGDIQUDETUIJIANTIANXIANKOUJING。QIYIKAOLVDAOZHONGDUOGANRAOYINSUBINGLIUCHULEYIDINGDEJIESHOUYULIANG,GUXUANYONGSHIYINGJINLIANGCAIYONGTUIJIANDETIANXIANKOUJINGHUOPIANXIAOYIDIAN(WEIXINGGONGSITUIJIANDEYIBANPIANBAOSHOUXIE)JIKE。RUWUTUIJIAN,GETIJIESHOUTIANXIANDEKOUJINGZHIYAOXUANZEQINGTIANSHIDAYUXINHAODEJIESHOUMENXIANJIKE。

B、TIANXIANXUANZHIJIBUXIANBUHELI

TIANXIANXUANZHIBUDANG,RUXUANZAIKAOJINFASHETAIZHAN、FENGKOU、YIBEIRENHUODONGWUPENGCHUHUOJICHUBULAOKAODEDIFANGDENG,YIJIBUXIANSHIKAOJINQIANGDIAN、ZHOUWEIKENENGCUNZAIGANRAOYUANDENGDOUSHIZAOCHENGJIESHOUXINHAOEHUADEYUANYIN。

英超下注C、YUXUETIANQISHIWEIJISHICHULITIANXIANMIANJISHUI

2、SHEBEIYUANYIN

A、TIANXIANDUIXINGBUZHUN

XIANKAOLVYIXIASHIFOUYOUDAFENGKENENGJIANGTIANXIANCHUIPIAN,RUTIANXIANZHILIANGJIAOCHAHAIYOUKENENGBIANXING,YIZHIDUIXINGBUZHUN;HUOSHITIANXIANSHOUDAOWAIWUPENGJI;HUOSHIYINDUONIANGONGZUOTIANXIANCHANSHENGJIXIEXINGBIANDENG。

B、GAOPINTOUBENZHENL.O.(Locaf oscillator)PINLVPIAOYIGUODA——YINGXIANGZHENGCHANGSHOUSHIDECHANGJIANGUZHANGYUANYIN

HENGLIANGDIZAOSHENGBIANPINFANGDAQILNBDEZHIBIAOJIAODUO,ZHUYAOYOU:BENZHENWENDINGDU、ZAOSHENGWENDU、ZENGYIHEXIANGWEIZAOSHENGDENG。GAOPINTOUCHUXIANWENTIJIAODUODESHIBENZHENPINLVPIAOYIGUODA。PUTONGJIAYONGJIGAOPINTOUYIBANBAISHIYUANZUOYOU,ERZHUANYEJIGAOPINTOUJIAWEIQUEZAIGANYUANYISHANG,QUBIEZHUYAOTIXIANZAIBENZHENPINLVWENDINGDUSHANG。ERZAOSHENGWENDU、ZENGYIHEXIANGWEIZAOSHENGZHEIJIXIANGZHIBIAOGURANYEHENZHONGYAO,DANCONGCHANGJIATIGONGDEZHIBIAOSHANGDUIBILAIKAN,ERZHEXIANGCHABINGBUDA,TIXIANBUCHUCHABIELAI。GESHENGCHANCHANGJIADEBIAODINGBINGBUTONGYI,SHICEKENENGHUIGENGLIPU。RUZAOSHENGWENDU,YOUDECHANGJIA17KLNBTONGQITACHANGJIA20KDELNBSHIYIYANGDE。YINCIBUNENGYONGSHANGSHU3XIANGZHIBIAODEGAODILAIHENGLIANGPANBIEGAOPINTOUDEYOULIE,XIANGXINYIFENQIANYIFENHUOHAISHIYOUDAOLIDE。

LNBDEPINLVWENDINGDUYOUQIBENJIZHENDANGQIDEPINLVWENDINGDUJUEDING,BENZHENZHONGLEIRUBIAOYISUOSHI。JIAYONGLNBYIBANBUDAISUOXIANGHUANPLL(Phase Locked Loop),ERZHUANYEJILN BJIBENDOUDAIPLL,JISHIBUDAIPLLQINEIBUYEHUICAIYONGGAOWENDINGDUJIEZHIGONGZHENQIDRO(Dielectric Resonator Oscillator)。

英超下注PUTONGJIAYONGJIGAOPINTOUZHILIANGJIAONANBAOZHENG,GONGZUOXINGNENGBUWENDING,ZHUYAOTIXIANZAIBENZHENPINLVREWENDINGXINGCHA,SHOUHUANJINGWENDUYINGXIANGPIAOYIJIAODA。SHIJIJIESHOUFUHAOLVJIAODI(JIZAIBOZHANYONGDAIKUANXIAO)DEDIANSHIZAIBOSHI,RONGYICHUXIANZAIBOSHISUOXIANXIANG。

DUIYUBENZHENPINLVPIAOYIBUYANZHONGDEGAOPINTOU,RUWUPINPUYICESHIPINPIANDAXIAO,JIEJUEFANGFASHI:DANGDIANSHIZAIBOSHISUOSHI,JIANGQIYINGSHEZHIDEPINLVZENGJIAHUOJIANXIAOYIGESHUZHI,RU±500KHZHUO±1MHZ,BUDUANCHANGSHIJIAJIANZHIZHIWENDINGSHOUSHI。ERHOUZAIBUDUANJIAJIANZAIBOPINLVZHAOCHUJIESHOUJISHISUOSHIDESHANG/XIAXIANPINLV,JIANGQIQUZHONGHOUSHEZHIWEISHIJIJIESHOUPINLVJIKE。DUIYUBENZHENPINLVPIAOYIYANZHONGDEGAOPINTOU,ZHINENGJINXINGGENGHUAN。

英超下注ZHUANYEJIESHOUMOUXINGDIANSHIJIEMU,MEITIANLIXINGXUNJIANQINGKUANGDUIBI,KEJIANLNBPINPIANZAI1.55MHz。ZHISUOYIYECAIYONGPUTONGGAOPINTOU,MUDESHIWEILEMONIGETIDANSHOUQINGKUANG。

C、XIANLANJIJIETOU

英超下注YIBANQINGKUANGXIA,XIANLANJIJIETOUZHIYAOZHILIANGGUOGUANCHUXIANWENTIDEKENENGXINGJIAOXIAO,DANYEBUNENGWANQUANPAICHU。GUCHUXIANWENTISHI,KAOLVYIXIA:

※SHIFOUDONGGUOXIANLAN;

※ZHONGXINBUGUOXIAN;

※DIANLANTOUZHIZUODEZHILIANGSHIFOUBUGAO,ZAOCHENGJIETOUSONGDONG、JIECHUBULIANGHUOSHIXINPIDUANLU;

※FANGSHUISHIFOUMEICHULIHAO,SHIFOUJINSHUIDENG。

RUYIQIEZHAOJIUZEJIBENBUHUAIYICIXIANGWENTI。

YIBANZHUANYEJIESHOUTIANXIANKUIYUANDOUJIAZHUANGSULIAOBAOHUZHAO,FANGZHIXIANLANTOU、KUIYUANJINSHUI、JINYIWUDENG。JIAYONGJIESHOUKEZHAOGESULIAOYINLIAOPINGTAOZHUJIKE。

D、JIESHOUJI

英超下注JIESHOUJIKENDINGYAOXUANYONGGONGZUOWENDINGKEKAO、PINZHIHAODE。QINEIBUDESHIPINCHULIJIEMAQIRUCUNZAIWENTI,HUIYINQIMASAIKEXIANXIANG。RUSHIYINWEITONGFENG、SANREBULIANGZAOCHENGJINEISHIPINJIEMAQIGONGZUOSHICHANG,ZEZHUYIWEIJIESHOUJISANREJIKE;RUSHIRUANYINGJIANSHEJIDENGYUANYINZAOCHENGTUXIANGCHUXIANMASAIKE,ZEXUHUANLINGYIPINPAIPINZHIHAOXIEDEJIESHOUJISHIYIXIA,JIKEYANZHENG;RUSHIWANGLUOGONGXIANGJIEMA,ZEWANGLUOSUDUJIGONGXIANGFUWUQICHULISUDUDOUSHIYINGXIANGTUXIANGZHILIANGDEYINSU。

E、GEZHONGQIEHUANKAIGUAN

DANGXUYAOJIESHOUDUOKEWEIXINGHUODUOHUJIESHOUSHI,JIUXUYAOYONGDAOQIEHUANKAIGUAN,RU:0/12V、13/18VDIANYAQIEHUANKAIGUAN;0/22KHzMAICHONGQIEHUANKAIGUAN、DiSEqCQIEHUANKAIGUAN、GEZHONGGONGFENQI、XIANFANGDENG。ZHEIXIEQIJIANRUZHILIANGJIAOCHA,XINHAOSHUAIJIANSUNHAOHUIBIJIAODA,ZHIJIEYINGXIANGSHOUSHIZHILIANG,YINCIXUANYONGHAODEQIEHUANKAIGUANYESHIFEICHANGZHONGYAODE。

XUYAOZHUYIDESHIRUCAIYONGDEXIANLANZHANGDUBUGOU,XUCHUANJIEDIANLANSHI,YINGZHUYIDIANLAN、JIETOU、LIANJIEQIZUKANGYAOPIPEI,FOUZEHUICHANSHENGFANSHE,ZHUBOBIBIANDA。DIANSHIZAIBOHUICHUXIANRUTUSANSUOSHIDEJUCHIZHUANG,PINXIANGHENCHATONGYANGYINGXIANGJIESHOUZHILIANG。

WAIZAIYUANYIN

JIRANBUSHIZISHENYUANYIN,KENDINGJIUSHIWAIZAIYUANYIN,YINSUYEHENDUO。

1、SHANGXINGZHAN

A、SHANGXINGSHEBEIRUGONGFANG、DIAOZHIQIDENGYINGUZHANGQIEHUANZHIBEIFENSHEBEI,DANGONGLVWEIXIAOZHUN,SHANGXINGGONGLVXIAJIANG;

英超下注B、SHANGXINGZHANYOUAZHANQIEHUANZHI8ZHAN,GONGLVWEIXIAOZHUN,SHANGXINGGONGLVXIAJIANG;

C、TIANXIANZIDONGGENZONGBUZHUN,HUOTIANXIANXUZHONGXINGENZONGWEIXING;

D、DIANSHIZAIBOCUNZAICHAOGONGLVSHIYONGQINGKUANG,BEIWEIXINGGONGSIJIUZHENG,GUSHANGXINGGONGLVJIANGDI。

JIANTOUSUOZHIDELIANGGEZAIBOMINGXIANCHAOGUOZHUANFAQIGONGLVBIAODINGXIANYUE3dB,SHUYUCHAOGONGLVSHIYONG。ZUOCEJIANTOUSUOZHIJIWEIDIANSHIZAIBO,WEIXINGGONGSIYAOQIUQIBIXUSHENSHIGONGLV,FOUZEJIANGANQIGONGLVDAIKUANSHOUQUZHUANFAQIZULINFEIYONG。

ZHISUOYIHUICHANSHENGZHEIZHONGQINGKUANGSHIYINWEIDUOZAIBOGONGZUODEZHUANFAQI,WEILEBIMIANCHANSHENGJIAODIAOGANRAO,GEGEZAIBOYAOANQIZHANYONGZHUANFAQIDAIKUANDEXIANGYINGBILIJINXINGGONGLVHUITUI(DANGEZAIBOSHIYONGZHENGZHUANFAQIZEWUXUHUITUI,GUJIESHOUZHENGZHUANFAQISHIYONGDEDAZAIBOKENDINGYAOBIXIAOZAIBOXINHAOQIANG)。YOUYUCHUQIZHUANFAQIDAIKUANSHIYONGBUZU,GEBIEZAIBOSUICUNZAICHAOGONGLVSHIYONGXIANXIANG,DANDUIQITAZAIBO—HUCHENGYINGXIANG,WEIXINGGONGSIYEJIUMEIYOUQIANGXINGJIUZHENG。DANYOUYUZAIBOYUELAIYUEDUO,CHAOGONGLVSHIYONGDEZAIBOBIXUJIANGDAOGUIDINGZHI,FOUZEXINSHANGZAIBOJIANGWUGONGLVSHIYONG。CISHIDANGCHUTANTUGENGXIAOKOUJINGTIANXIAN,WEIANBIAOZHUNXUANGOUTIANXIANDEYONGHU,SHOUSHIKENDINGHUISHOUDAOYINGXIANG。

E、CUNZAIGANRAO;

RUSHANGXINGXITONGZHONGCUNZAIZHONGPINCHUANRAO、JIAODIAOGANRAO、ZHUANFAGANRAODENG,HUISHIZHENZHENGYOUYONGDEXINHAOBEIWUYONGDEGANRAOZAOSHENGQINZHAN,ZAIBOZAOSHENGBISHUASHI。SUIRANXINHAOGOUQIANG,DANZHILIANGBUGAO,XINHAODAIZHEGANRAOJIUSHANGLEWEIXING。

2、WEIXING

A、CUNZAIGANRAO,RUFANJIHUAGANRAO、XIANGLINXINDAOGANRAO、LINXINGGANRAODENG;TONGPINGANRAO,YOU3GEGANRAOZAIBOCHUXIANZAIZHENGCHANGDIANSHIZAIBOSHIYONGDEPINDUANNEI,YINGXIANGLEZHENGCHANGXINHAODEZHILIANG。

B、WEIXINGZITAI、GUIWEIYICHANG、ZHUANFAQIZENGYIDANGTIAOBIANDENG

英超下注WEIXINGDEGUZHANGLVQUXIANLEISIYU“U”XING(JISUOWEI“YUGANGQUXIAN”),JIWEIXINGTOURUYUNXINGHOUDEDIYINIANJISHOUMINGMOQIFENGXIANDOUBIJIAODA,ZHONGQIYUNXINGZEFENGXIANJIAOXIAO,KEKAOXINGHENGAO,FASHENGGUZHANGDEKENENGXINGHENXIAO,DANYEBUSHIBUKENENG。LIRU2008NIANDEZHONGXING6BWEIXINGZISHENFASHENGGUZHANG,ZHISHIZHONGYANGDIANSHITAIZAINEIDEGONG150TAODIANSHIJIEMUQUANBUZHONGDUAN。

C、RILINGZHONGDUAN

RILINGSHIYIZHONGCHANGJIANDETIANWENXIANXIANG,GUDINGFASHENGZAIMEINIANDECHUNFENHEQIUFENQIANHOU。CISHIWEIXINGCHUYUTAIYANGYUDIQIUZHIJIAN,DIQIUZHANTIANXIANZAIDUIZHUNWEIXINGDETONGSHIKENENGYEHUIDUIZHUNTAIYANG,ZHEISHIQIANGDADETAIYANGZAOSHENGSHITONGXINWUFAJINXING。MULINGFASHENGSHI,ZAOSHENGTAIGAOLEJIN10dB。ZHEIZHONGZHONGDUANMEINIANFASHENGLICI,MEICICHIXUYUE6TIANZUOYOU。MEITIANCHUXIANDESHIJIANJIZHANGDUANYUDIQIUZHANTIANXIANDEKOUJINGHEGONGZUOPINDUANYOUGUAN,XINHAODAGAIZHONGDUANSHIFENZHONGZUOYOU。

WEIXINGWEIYUJIESHOUZHANDEDONGBIAN,ZEZHONGDUANFASHENGZAISHANGWU,XIANGFANZEZHONGDUANFASHENGZAIXIAWU。DUIJINGZHIWEIXINGTONGXINXITONGLAISHUO,RILINGZHONGDUANSHIKEYIYUCEDE,DANYIBANSHINANYIBIMIANDE。DUIYUFEICHANGZHONGYAODEJIESHOUZHANYIBANCAIQUJIADATIANXIANKOUJINGLAIJIANXIAOZHONGDUANSHIJIANDEFANGFA,HUOSHICAIYONGYIDIZHANBEIFENDEFANGFALAIBIMIANXINHAOZHONGDUAN。

3、KONGJIAN

英超下注A、JIANGSHUISHUAIJIAN,TEBIESHIKuPINDUAN,YINGXIANGJIAODA。

SHANGXINGDIMIANZHANYIBANDOUJUYOUSHANGXINGGONGLVZIDONGKONGZHIXITONGUPC,WEIXINGSHANGYEYOUZIDONGDIANPINGKONGZHIXITONGALCLAIYINGDUIYUSHUAIXIANXIANG。DANGSHANGXINGZHANYOUXIAYU、XIAXUEHUONONGWUDENGXIANXIANGFASHENGSHI,DUIYUYIBANDEJIANGSHUI。DIMIANZHANHUOWEIXINGNENGJISHIBUCHANG。DANRUJIANGSHUIHENDA,BUCHANGYEMEIYOUZUOYONG。RUXIATUQISUOSHIBAOYUSHI,XINHAOHUIBEIQUANBUSHUAIJIANDAIJIN。

MUQIANWOGUOGUANGBODIANSHIXINGYEYIBANYAOQIUDEKEYONGDUWEI:SHANGXING99.99%、XIAXINGJITIJIESHOUZHISHAO99.5%,GETIJIESHOUYIBANZAI99%。LIANGGE9DEKEYONGDUJIBENKELIJIEWEIBUKAOLVYUSHUAIDEYINGXIANG,YUTIANQILIANGHAOQINGKUANGXIAJINXINGDEJIESHOU。KEYONGDUYUEGAO,ZUOWEIGETIJIESHOU,YAOQIUSUOCAIYONGDETIANXIANKOUJINGYUEDA,HUAFEIYUEDUO。YOUGUANGEZHONGKEYONGDUXIADEGEDIJUTIYUSHUAIZHI。

B、DIANLICENGSHANSHUOHEDAQISHANSHUO——XIAOGAILVSHIJIAN,YIBANBUYUKAOLV

英超下注C、TAIYANGHEIZIBAOFA——XIAOGAILVSHIJIAN,YIBANBUYUKAOLV

4、QITAKEGUANYINSU

TIANXIANQIANFANGSHIFOUCHUXIANXINZENGDEJIANZHUWUHUOZHIWU、SHIFOUJIASHELEXINDEGAOYAXIANLU、XINDEFASHETAIZHAN、GUANGDIANBUMENSHIFOUKAIQILEGANRAOSHEBEIDENG,ZHEIXIEDOUSHIZAOCHENGXINHAOZHILIANGXIAJIANGDEYUANYIN。RUQUEDINGSHISHANGSHUYUANYINZEZHINENGTONGGUOYIDONGTIANXIANWEIZHI、ZENGDATIANXIANKOUJING、HUOSHICHANGSHIJIESHOUQITAWEIXINGXINHAOLAIJIEJUE。

FENXIZONGJIE

YUSHUAIDA、TIANXIANPIAN、LNBPINPIANJIBENDIYOUGANRAOSHIGETIJIESHOUWEIXINGXINHAOZHILIANGJIANGDIDECHANGJIANGUZHANGYUANYIN;ERWEITUOGONGSIYIJISHANGXINGZHANXIANGDUICUNZAIWENTIJIAODUODESHI:YUSHUAIDA、YOUGANRAO。

YOUYUWOGUODUIGUANGBODIANSHIXINGYEDEKEYONGDUYAOQIUJIAOGAO,DUIYUWEIXINGHEDIANSHIZAIBO,WEIXINGGONGSIJISHANGXINGZHANDOUYONGYOUYITAOCHENGSHUBINGQIEWANSHANDEJIANCEHEBEIFENXITONG,YIJIZHOUQUANDEGUZHANGYINGJICHULIYUAN。YINCIWENTICHUXIANSHI,ZUOWEIGETIYONGHUYINGXIANZHONGDIANJIANCHAYIXIAZISHENYUANYIN。TONGSHIQIEJIMANGMULUANDONGSHEBEI,RUSHANGLAIJIUDUIXING、HUANXIANDENG,RUNENGHEFUJINQITAYONGHUQUERENXIAZUIHAO。ZIJIANWUWUHOUZAIHUAIYIKENENGSHISHANGXINGZHANHUOWEIXINGCUNZAIWENTI,XIANGQIFANYINGQINGKUANGBINGZAIQIZHIDAOJIANYIXIAJIEJUEWENTI。YEKEQUMOUXIEWEISHILUNTANJIAOLIUZONGJIEJINGYAN,YIBIANJINHOUGENGHAODICHULIJIEJUE。 

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