Original document(8 pages) Authorized document(4 pages) 中文版
    The present invention relates to a bandpass-compressing system for freq-modulated waves in radio transmission. The said system can be divided into three parts of amplifier, freq divider and filter. The narrow-band freq-modulated signal is obtained by passing the high-freq signal through the amplifier and several stages of half-freq dividers. When the present system is added into a special freq-modulated emission system, medium and short wave freq-modulated broadcasts can be set up.
Application Number
申请号		 89102228 Application Date
申请日		 1989.04.08
Title 名称 System for compressing pass band of frequency-modulated wave
Publication Number
公开号		 1046422 Publication Date
公开日		 1990.10.24
Approval Pub. Date Granted Pub. Date 1999.04.07
International Classification 分类号 H04B1/66
Applicant(s) Name
申请人		 Nie Guo-am
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人
More information 更  多  信  息


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