“广播电视”的最佳无线解决方案

NanningTaisuElectronicCo.,[e-mail]@163.comAddress:WuyixiRoadNO.12-33,F2,Nanning,Guangxi,ChinaTEL:86-771-268186886-711-2259088FAX:[phone]UHFfrequencyrange(470～860MHz)broadbandmultichanneltransmitter“广播电视”的最佳无线解决方案Thebestwirelesssolutionof“everyvillagecanwatchbroadcasttelevision”!★470~860MHZ宽波段低噪音设计470～860MHzbroadbandresponseandlownoisedesign;★先进的超线性前馈技术，提升发射机的发射功率并降低非线性失真产物，同时减少功耗。Advancedultralinearfeedforwardtechnologycanincreasetransmittedpoweroftransmitter,decreasenonlineardistortionproductandreducepowerconsumption;★可提供多达48个电视节目，同时发射之独特功能Mayprovideasmuchas48ofTVprogramandtransmitthematthesametime;★先进的计算机控制、自诊断、运行状态直观显示和远程监控功能。Advancedcomputercontrol,self-diagnosis,displayrunstateobjectivelyandremotemonitor;★低级的本振相位噪声特性，同时适用于调幅调频和数字压缩方式传输。Thecharacteristicoflowestlocaloscillationphasenoisecanbesuitableforamplitudemodulation,frequencymodulationanddigitalcompressedformtransmission;★ALC保持恒定功率输出ALCkeepsconstantpoweroutput;★高效率的GAASFETS降低运行费用及节省空间HighefficiencyGaAsFETscandecreaseruncostandsavespace;★发射机采用室外型设计，提高有效发射功AX:86-771-3852711Mobile:[phone]率并降低发射馈线成本，全天侯露天工作，无人值守。NanningTaisuElectronicCo.,[e-mail]@163.comAddress:WuyixiRoadNO.12-33,F2,Nanning,Guangxi,ChinaTEL:86-771-268186886-711-2259088FAX:[phone]Thetransmitteradaptsthedesignofopenair.Itcanincreaseeffectivelytransmittedpoweranddecreasethecostoftransmittedfeedlineandcanoperateatall-weatherwithoutonwatch;★铝制结构对环境适应能力强。Aluminumstructurehasstrongadaptabilitytoenvironment.★模组化设计方便设备维护和功率升级。Modelcombinationdesignmakesmaintenanceandpowerupgradeconveniently;★转发光纤、AML或MMDS信号，低成本实现广播电视无线联网覆盖Totransmitopticalfiber,AMLorMMDSsignalcanrealizewirelessinterconnectionandcoverofbroadcasttelevisionatlowcost.Smallpowerseries小型功率系列SGTA-002SGTA-004SGTA-005Middlepowerseries中型功率系列SGTA-010SGTA-020SGTA-040Bigpowerseries高型功率系列SGTA-080SGTA-160SGTA-320Specialtechnicalstylefromexteriortointeriorcanmeetthedevelopmentdirectionofbroadbandanddigitalizationandguaranteetheprogressandreliabilityofthesystem.Sincerelywelcometoconsultbyletterortelephoneorvisitandinvestigate.SGT数字超线性发射机SGTDigitalUltralinearTransmitterSGT系列超线性发射机，铝制结构，全密封整体40片冷却装置（400*280*50MM），再由4个轴流风扇强制风冷，散热良好。配置玻璃钢防水外罩，可常年室外稳定可靠的工作，特别适合高山台无人值守转播广播电视节目。SGTdigitalultralineartransmitter,steelstructure,fullsealintegralwith40piecesofcoolingdevice(400×280×50mm),aircoolingby4ofaxialfan,goodheatradiation,equippedwithgfrpwaterproofcover,canoperatestablyandreliablyatopenairalltheyearround,particularlyitissuitableforTVstationathighmountainwithoutonwatchtotransmitTVprogram.、NanningTaisuElectronicCo.,[e-mail]@163.comAddress:WuyixiRoadNO.12-33,F2,Nanning,Guangxi,ChinaTEL:86-771-268186886-711-2259088FAX:[phone]产品特点Characteristicsofproduct：1.散热性能好，发射机热性能稳定。内置自适应电路，能在不同环境下稳定工作。Goodheatradiation,constantpropertyoftransmitter,built-inself-suitabilitycircuit,canoperatestabilityatdifferentenvironment;2.功率放大采用前馈式处理技术，IM3产物低、AM-PM轮换失真小。Thepoweramplificationadaptsfeedforwardtreatmenttechnology,lowIM3products,smalldistortionofAM-Pinturn;3.内置上变频器，屏蔽性能好，本振采用贴片封装归一化集成VCO，同时采用锁相环技术，使得本振频率相位噪声低、频率准确度和稳定度极高。Built-inuppertransducer,goodshieldedproperty,localoscillationadaptspatchenclosurenormalizationintegrationVCOandalsothetechnologyofphaselockedloop.Soitmakesthatthenoiseoflocaloscillationfrequencyphaseislowandthattheaccuracyandstabilityoffrequencyishighgreatly;4、采用三平衡混频技术，混频噪声极低。Adaptthree-balancemixingtechnology.Thenoiseofmixingisverylow;5、采用高抑制比腔体滤波器，带外抑制度高。Adaptcavityfilterwithhighinhibitratio,theinhibitdegreeofoutsidethebandishigh;6、数码显示输出功率、机箱度高、AGC电压和输出驻波比。，输出功率连续可调，操作方便。Digitalcodedisplaysoutputpower,temperatureofenginecase,AGCvoltageandratioofoutputstationarywave.Theoutputpowerissuccessiveandadjustable.Theoperationisveryconvenient.1.射频指标Indexofradiofrequency工作频率Workfrequency470～860MHz,N+1mode输出功率（有效值）Outputpower(effectivevalue)303,50w,100w,150w,200w输入注波比Ratioofinputstationarywave≤1.1噪声系数Coefficientofnoise≤4.58dB三阶互调Mutualadjustmentofthird-orderon≤-55dB肩比Shoulderratio(640AM,6.875Mb)≤-43dB调制误差率Ratioofmodulateerror(640AM,6.875Mb)MER≥38dB内带平坦度Flatnesswithinband±0.5dB信噪比RatioofsignaltonoiseC/N≥42Db频率稳定度Stabilityoffrequency3×108比特误码率Ratioofbiterrorcode≤10-9ALC控制ALCcontrol≥14dB输入射频电平范围Scopeofinputradiofrequencyelectricallevel105～115dB射频对DC电源工作效率15%NanningTaisuElectronicCo.,[e-mail]@163.comAddress:WuyixiRoadNO.12-33,F2,Nanning,Guangxi,ChinaTEL:86-771-268186886-711-2259088FAX:[phone]WorkefficiencyofradiofrequencytoDCpowersupply输入接口InputinterfaceSMA-50KF输出接口OutputinterfaceN-50KForL27-50KF2.工作环境Workenvironment温度范围Temperaturerange-25～45℃相对湿度RH50～80％Atmospherepressure大气压力86～106KPa供电电源Powersupply170～260VAC(47～60Hz)SGTB系列数字超线性发射机应用指南ApplicationGuidetoSGTBSeriesDigitalUltralinearTransmitter主要特点Maincharacteristics该发射机可在470-860MHZ范围内，根据需要任选单一频道或连续八个频道带宽工作，只要换不同模组和滤波器就能实现。整机内含四组场效应管高功率放大器，每组独立输出45W，经功率合成器满功率输出160W。每块功率放大器有电脑自动监测其工作电流