GBT4311-2000米波调频广播技术规范

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1、免费标准网(www.freebz.net)标准最全面ICS33.160.20M60(rig中华人民共和国国家标准GB/T4311-2000米波调频广播技术规范TechnicalspecificationsforFMsoundbroadcastingatVHF2000一01一03发布2000一08一01实施国家质量技术监督局发布免费标准网(www.freebz.net)无需注册即可下载免费标准网(www.freebz.net)标准最全面G6/T4311-2000目次前言············································

2、·······················”··················”·······················⋯⋯，1范围········，·············································⋯⋯，············“·························，······⋯⋯12引用标准··································································································

3、······⋯⋯13通用要求·····························································································，.······⋯⋯14单声广播·········································································，····························⋯⋯25立体声广播························”·····················

4、···················，···························⋯⋯26多路声广播····，，····················‘，········‘，·“，·····，···，，········，，··，·····“，····‘··，一37调频数据广播·······”···············”········”····························································⋯⋯4免费标准网(www.freebz.net)无需注册即可下载免费标准网(www.

5、freebz.net)标准最全面GB/T4311-2000前言本标准是原有的GB4311.1-4311.4《调频广播》的修订。本标准是根据我国调频广播发展的实际情况，考虑到原有标准已使用了十五年，在此期间，调频广播发射设备的技术水平已有很大的提高，原有技术标准相对落后，同时，对于调频副信道的技术开发和使用已提到日程上来，必须有相应的标准予以规范，使在开展调频副信道数据传输业务时，对其频谱、频偏、调制度等有标准可依。本标准起草小组在参考国际电信联盟ITU-R建议书450-2:1995《米波调频声音广播播出标准》、建议书300-7:1990《立体声/多声道调

6、频声音广播》、建议书463-5:1990(在调频声音广播中用单部发射机播送若干套声音节目或其他信号》、建议书412-7:1995《米波调频声音广播规划标准》和国外先进标准基础上，对原标准进行修订。在本标准的修订中，对以下几个方面进行了修订:—将调频广播分为:调频单声广播、调频立体声广播、调频多路声广播、调频数据广播四种;—对于在副信道中传输的信号，可分为声音信号和数据信号两种，传输声音信号调频广播称为多路声广播，传输数据信号的广播称为调频数据广播;-一对于四种调频广播方式，规定了发射信号的总频偏和相互间干扰的限制;—规定了调频数据业务广播副载波的最高上限

7、频率，数据信号对于副载波的调制方式没有限制。在标准的修订中，去掉了原有标准中的天线辐射功率允许偏差、电波的极化方式、导频相位允许偏差等。副信道允许采用任何形式的调制方式，但应经上级技术主管部门审批认可。原国标对于天线的极化方式只规定了水平极化，考虑到在ITU和国外先进标准中均未对天线的极化方式加以规定，目前大部分发射天线采用圆极化方式，同时还考虑到相互干扰的间题，对于夭线的辐射形式不作硬性规定，如采用垂直极化或圆极化方式，须报上级技术主管部门审批认可。本标准实施之日起，替代下述标准:1.GB4311.1-1984调频广播单声2.GB4311.2-1984

8、调频广播立体声3.GB4311.3-1984调频广播立体声带附加信道4.GB43