飞外网>通信网络>无线通信电子电路图>FM Transmitter
FM Transmitter 来源：不详•作者：佚名• 2009-12-22 10:55 • 次阅读 • 个评论FM Transmitter
A portable FM transmitter that can be used to replace a FM microphone.
Notes:
This simple transmitter operates from a 9V battery as shown above. I personally built this for a purpose. This is how it happened:- "members of my singing group find it difficult to handle a FM mic in Church. The choir sings in acapella form and the congregaTIon expect us to perform well. The old FM mic system was not a perfect soluTIon, so I built this kit and a mixer for the receivers. using three separate transmitter circuits and a mixer on the receiever, the choir voices were perfect and cleanly reproduced."
From the notes I made experimentally, C3 is vital to the circuit and without it the circuit may become unstable. C4 is in parallel with C5 and presents a moderate load impedance. Finally all transistors are NPN. The circuit works well and has proved reliable.
L1 Details:
In the circuit L1 has 6 turns and has a diameter of 5.5mm and has a length of 4.5mm. Based on the formula for an air cored inductor:
Where L1 = inductance in uH r = radius of coil in inches l = length of coil in millimetres (mm) n = number of turns on coil
Using the above values, the inductance of L1 can be calculated. A diameter of 5.5mm = 0.22 inches, the radius is half this value or 0.11 inch, the length is 4.5mm and number of turns, n = 6. This gives L1 a value of:
FM1906段码屏驱动最近做开发又用到了段码屏，6位的段码屏，驱动芯片是FM1906单片机型号：APM32F103C8T6（STM32的国产替代）库函数：HAL库直接上驱动程序—FM1906.c：#include2021-11-25 13:36:119AD9986: 4T2R Direct RF Transmitter and Observation Receiver Preliminary Data SheetAD9986: 4T2R Direct RF Transmitter and Observation Receiver Preliminary Data Sheet2021-01-27 21:50:230如何进行FM天线的设计调频（FM）收音机在高保真音乐和语音广播中已经被采用好多年了，它能提供极好的声音质量、信号鲁棒性和抗噪声能力。最近，FM收音机开始越来越多地用于移动和个人媒体播放器中。然而，传统FM设计方法需要很长2020-07-08 18:50:321FM和AM的原理是什么FM（Frequency Modulation）即调频。习惯上用FM来指一般的调频广播（76-108MHz，在中国为87-108MHz、日本为76-90MHz），事实上FM也是一种调制方式，即使在2019-01-15 16:04:5230033怎样用FM调频头改制高性能FM发射器近日笔者用一只高放部分损坏了的调频头（FM）。制作了一个FM发射器，十分有趣，特写出来与大家共享。2018-09-20 20:54:267428使用声表谐振器的800米发射电路,800m fm transmitter使用声表谐振器的800米发射电路,800m fm transmitter 关键字：声表谐振器发射电路，数字发射电路使用声表谐振器2020-10-01 09:19:02417使用变容管的优质调频话筒（英文）,3V FM Transmitter for Short Distance - 88MHz to 108MHz使用变容管的优质调频话筒（英文）,3V FM Transmitter for Short Distance - 88MHz to 108MHz 关键字：使用变容管的优质2020-10-01 09:16:01277300mW 调频发射机,FM transmitter300mW 调频发射机,FM transmitter 关键字：300mW 调频发射机 300mW 调频发射机 本FM发射机采用2020-10-01 09:09:01433用MAX2606制作FM发射机,max2606 fm transmitter用MAX2606制作FM发射机,max2606 fm transmitter 关键字：用MAX2606制作FM发射机 用MAX2606制作2020-10-01 09:00:01462用LM389制作的远程FM发射电路,LM389 fm transmitter用LM389制作的远程FM发射电路,LM389 fm transmitter 关键字：用LM389制作的远程FM发射电路用LM3892020-10-01 08:55:01433调频发射机的制作及调试,FM transmitter调频发射机的制作及调试,FM transmitter 关键字：调频发射机的制作及调试调频发射机的制作及调试在五花八门的无线电制作2020-10-01 08:56:01834频率稳定的简易调频发射电路,FM transmitter频率稳定的简易调频发射电路,FM transmitter 关键字：频率稳定的简易调频发射电路工作电压为9V，工作电流2～6mA，元件2020-10-01 08:52:01631FM无线耳机电路原理图,FM TRANSCEIVERFM无线耳机电路原理图,FM TRANSCEIVER 关键字：9088收音机，FM发射机 发射器电路图
方未测绘2020-10-01 06:02:011264单晶体管FM接收机（英文）,One Transistor FM Receiver by MPF102单晶体管FM接收机（英文）,One Transistor FM Receiver by MPF102 关键字：单晶体管FM接收机 One2020-10-01 05:12:01444S9018单管超再生FM接收电路,FM receiverS9018单管超再生FM接收电路,FM receiver 关键字：S9018单管超再生FM接收电路 S9018单管超再生FM接收电路S9018单管超再生FM接收电路,最基础的接收机电路，简单的FM接收机就是用这些电路做的2020-10-01 05:10:011745两管FM接收头电路,FM receiver两管FM接收头电路,FM receiver 关键字：两管FM接收头电路 两管FM接收头电路,使用晶体管搭建,电路零件容易取得,可以试试,不知道效果如何2020-10-01 05:03:014021000米单管振荡调频发射电路,1km FM transmitter1000米单管振荡调频发射电路,1km FM transmitter 关键字：调频发射电路,调频话筒,无线话筒对于一个业余的无线电2020-09-30 20:54:01600不用电池的音频转发器,audio transmitter不用电池的音频转发器,audio transmitter 关键字：音频转发器,声音发射,振荡电路,调频发射 此转发器可以将音频信号转到2020-09-30 20:49:01482一款实验晶振调频发射机,crystal FM transmitter一款实验晶振调频发射机,crystal FM transmitter 关键字：调频发射,调频发射电路,晶振调频 许多无线电爱好者都2020-09-30 20:51:01677简单的ＦＭ调频发射制作实验,simple FM transmitter简单的ＦＭ调频发射制作实验,simple FM transmitter 关键字：调频发射电路,调频话筒,无线发射电路,无线发射器 2020-09-30 20:38:01809单电子管FM收音机,Vacuum Tube FM radio单电子管FM收音机,Vacuum Tube FM radio 关键字：FM收音机制作,FM收音机电路,电子管收音机电路,电子管FM收音机电路
这是在网上看见的图,电路很简洁,不过调试起来可能会复杂一些,关键是再生部分的调试.2020-09-30 20:33:01926FM无线耳机转发器,FM transmitterFM无线耳机转发器,FM transmitter 关键字：FM发射电路 个人收看电视时，伴音会干扰或影响他人学习或休息，采用2020-09-30 20:07:01549无绳电话晶振式调频发射机,FM Transmitter无绳电话晶振式调频发射机,FM Transmitter 关键字：无绳电话晶振式调频发射机 晶振调频话筒电路2020-09-30 19:57:01530500m ＦＭ调频发射电路,500m fm transmitter500m ＦＭ调频发射电路,500m fm transmitter 关键字：500m ＦＭ调频发射电路 500mＦＭ调频发射电路本文2020-09-30 19:58:01313FM C51数字收音机源代码应用和FM芯片和模块资料详细概述本文档的主要内容详细介绍的是FM C51数字收音机源代码应用和FM芯片和模块资料详细概述。2018-08-22 15:49:389FM175xx和FM17522中文开发资料免费FM175xx Demo 开发套件是广州周立功单片机科技有限公司为企业用户、电子工程师和高校师生设计推出的一款基于FM17550/FM17522/FM17520 + LPC1114 的评估套件，核心2018-08-15 17:28:29882FM1702SL+通用读卡芯片FM1702SL+通用读卡芯片2017-10-30 15:41:0644FM1702编程指南FM1702编程指南2017-10-21 16:43:1137FM34降噪模块应用图FM34降噪模块应用图2017-04-28 20:51:1041FM1702_1704_1705FM1702_1704_1705数据手册，下来看看2016-07-12 23:19:1521FM收音机的制作与设计--课程设计FM收音机的制作与设计--课程设计FM收音机的制作与设计--课程设计。2016-05-26 16:44:32133FM24系列中文资料FM24系列中文资料FM24系列中文资料FM24系列中文资料2016-01-14 19:47:442FM24C04驱动程序FM24C04驱动程序FM24C04驱动程序FM24C04驱动程序2016-01-14 19:47:4354FM353 配置及编程入门FM353入门FM353入门FM353入门FM353入门FM353入门2015-11-12 20:13:069FM解调器电路原理解析FM解调器实例，它采用560B把FM中心频率（10.7MHz）变换为低音频信号。560B片内有相位比较器、放大器以及压控振荡器。压控振荡器与输入信号同步时，利用其控制电压与输入信号频率成比例变化的特性进行FM解调。2015-01-30 09:57:377321FM内置天线介绍FM作为移动终端的标准配置功能，用附件耳机线作FM天线的使用方式很大程度上制约着FM功能的使用，尤其是中低端机型的用户会较少随身携带耳机线。近两年来移动终端内置FM天线开始2013-09-12 15:59:0991FM调频技术原理及FM芯片测试指南FM调频技术原理及FM芯片测试指南2013-06-06 10:46:38144移动设备的FM测试FM逐渐成为一项标配功能。与WiFi、GPS和3G蜂窝不同的是，早在20世纪30年代初Edwin Armstrong首先建议将FM用于语音和音乐广播时，宽带FM就已经开始使用了。在今天的手持设备中2012-08-17 16:25:332098Alarm Sounds When RF Transmitter is Out of RangeThis design idea explains how a 915MHz receiver can sound an alarm when a transmitter moves beyond a predetermined boundary. 2011-08-06 21:18:24932FM发射电路1飞外为您提供了FM发射电路1，本站还有FM发射电路2，欢迎查看。2011-06-30 17:21:203416FM收音机工作原理及修理第一章 FM收音机工作原理 第二章 FM收音机维修 第三章 FM收音机校准2011-02-25 15:02:212283Precision current-transmitter/source-sink calibrator has wid (or source) can be modified for use as a 4–20mA sink transmitter. 2011-02-01 11:45:371439FM24C04A,FM24C08A二线品德EEPROM技术手FM24C04A,FM24C08A二线品德EEPROM技术手册2010-11-09 21:19:5873A Planar Balanced Approach to Increase Transmitter LinearityABSTRACTThe TI TRF1123 MMIC transmitter chip is a highly linear power amplifier with digital2010-07-06 17:47:4224FM角度调制电路工作原理变容二极管是一种压控的可变电容元件，用它实现直接FM，由于电路简单，性能优良，已成为目前应用最广泛的FM电路。2010-05-27 16:02:527052使用555的FM调制电路使用555的FM调制电路电路的功能改变555的自激多谐振荡器的充电电2010-05-12 14:07:2512739018单管超再生FM接收电路9018单管超再生FM接收电路9018单管超再生FM接收电路,最基础的接收机电路，简单的FM接收机就是用这些电路做的2010-03-09 15:31:554155激光发射器/接收器电路 LASER Transmitter/激光发射器/接收器电路 LASER Transmitter/ReceiverThis set of two circuits from the basis for a very simple2010-02-05 15:23:264216FM Transmitter CircuitFM Transmitter CircuitParts List: R1 4K7 2009-12-22 11:09:37954Surveillance Transmitter DetecSurveillance Transmitter DetectorNotes:My site contains a few low power transmitt2009-12-22 11:05:16875AM TransmitterAM TransmitterNotes:Please read the disclaimer on this2009-12-22 10:56:351085PLL FM Transmitter block diagrPLL FM Transmitter block diagram2009-12-22 10:53:441486Stereo FM transmitter block diStereo FM transmitter block diagram2009-12-22 10:52:431293Crosby direct FM transmitter bCrosby direct FM transmitter blocck diagram2009-12-22 10:49:021576FM跟踪发射器FM Tracking TransmitterFM跟踪发射器FM Tracking Transmitter Kit (small)This kit is the small version of the FM 108 MHz2009-12-22 10:14:061962Crystal controlled 147.460 MHzCrystal controlled 147.460 MHz FM transmitterThe XFM1 transmitter is a crystal controlled tone2009-12-22 10:11:491182Linear FM 50Watt with BLY90 50Linear FM 50Watt with BLY90 50W FM调频功放电路A amplifier of force RF for the FM, is always ess2009-12-22 10:09:371110用分立(贴片)元件制作的调频发射电路用分立(贴片)元件制作的调频发射电路This SMD FM transmitter has an operating frequency of about 80 to 115MHz. Under reasonable circumstances you will be ab2009-12-22 10:07:061603Medium range transmitterMedium range transmitter2009-12-22 10:02:47892MP3 FM调频MP3 FM调频 FM调频即收音机功能2009-12-21 15:21:4811231.2-4mc 10-25W transmitter 发射机1.2-4mc 10-25W transmitter 发射机电路2009-10-20 16:26:39911FM DX 天线基础知识FM DX 天线基础知识天线是FM DX的耳朵，微弱的电波从天线经过馈线进入接收机，才能让我们听2009-10-20 11:32:293551FM解调器FM解调器
LM3112009-09-15 10:28:32891FM解调电路图FM解调电路图2009-07-15 16:47:34493FM3104/FM3116/FM3164/FM31256,pThe FM31xx is a family of integrated devices thatincludes the most commonly needed functions2009-07-13 08:16:4250900MHz全双工无线发射器参考设计,Transmitter900MHz全双工无线发射器参考设计,Transmitter Reference Design for a 900MHz Full-Duplex RadioAbstract2009-06-27 23:36:571333海信TF2911FM彩电电路图海信TF2911FM彩电电路图 海信TF2911FM彩色电视机电路图，海信TF2911FM彩电图纸，海信TF2911FM原理图2009-05-08 14:38:4373线性FM解调器电路线性FM解调器电路2009-03-21 19:14:13642FM调制器电路FM调制器电路2009-03-21 18:59:451382XTR105 pdf datasheet (4-20mA, two-wire current transmitter)The XTR105 is a monolithic 4-20mA, two-wirecurrent transmitter with two precision current2008-12-19 19:45:3490FM AM中频部分电路FM AM中频部分电路2008-12-15 14:59:44468FM AM收音机的FM高频头电路FM AM收音机的FM高频头电路2008-12-15 14:57:588654FM3164/FM31256 pdf datasheet (FM3164/FM31256 pdf datasheet (Processor Companion with Memory)2008-09-23 11:45:4528FM31274/FM31276 pdf datasheetThe FM31xx and FM3127x/FM31L27x processor companion families are similar in many ways, howeverthere2008-09-23 11:40:4219FM31272/FM31278 pdf datasheetThe FM31xx and FM3127x/FM31L27x processor companion families are similar in many ways, howeverthere2008-09-23 11:39:3433FM无线传输模组电路图广视美电子--供应FM发射模组，收音模组FM模组，收音模组，发射模组产品特点：频率范围76-108MHZ高灵敏度、高稳定性，低噪音产品应用：FM收音模块广泛应用于消费类2008-09-03 15:09:03584Transmitter Reference Design fTransmitter Reference Design for a 900MHz Full-Duplex Radio Abstract: This reference design2008-08-18 13:47:25797福建厦门fm频道列表福建厦门fm频道列表[FM]CH01=08860,FM88.6MhzCH02=08890,台湾国立教育电台CH03=08960,FM89.6MhzCH04=08980,同安人民广播电台CH05=09040,泉州电2008-05-15 23:18:088954大连fm频道列表大连fm频道列表[FM]CH00 = 08370,大连电视一台CH01 = 08760,辽宁经济台CH02 = 09060,辽宁咨询台CH03 = 09310,大连都市之声电台CH04 = 09750,2008-05-15 23:16:525427成都fm频道列表成都fm频道列表[FM]CH01=08940,四川电台大众频率CH02=09400,四川电台经济频率CH03=09550,四川电台岷江音乐CH04=09700,四川电台旅游频率2008-05-15 23:16:237076广西玉林fm频道列表广西玉林fm频道列表[FM]CH00 = 08850,广西教育生活广播CH01 = 08950,广西交通台CH02 = 09080,广西经济广播电台CH03 = 09200,珠江经济广播电2008-05-15 23:13:453071合肥fm频道列表合肥fm频道列表[FM]CH01=08380,安徽卫视电视伴音CH02=08760,合肥文艺台CH03=08860,肥西台CH04=08950,安徽音乐广播CH05=09080,安徽交通广2008-05-15 23:11:134820河北保定fm频道列表河北保定fm频道列表[FM]CH00 = 09180,保定新闻综合CH01 = 09370,保定时尚生活CH02 = 09530,河北文艺色彩调频CH03 = 09830,中国之声CH04 = 02008-05-15 23:10:198153河南洛阳fm频道列表河南洛阳fm频道列表[FM]CH01 = 07700,外语学院英语台CH02 = 07880,外语学院日语台CH03 = 08750,河科大校园广播CH04 = 08810,洛阳人民广播2008-05-15 23:09:136414昆明fm频道列表昆明fm频道列表[FM]CH00 = 08380,CCTV1CH01 = 08870,生活之声CH02 = 09180,交通之声CH03 = 09700,音乐之声缤纷九七CH04 = 09900,香格里拉之声2008-05-15 23:01:384235辽阳fm频道列表辽阳fm频道列表[FM]CH00 = 07800,校园广播台CH00 = 08760,沈阳电台教育台CH01 = 08790,鞍山评书台CH02 = 08820,盘锦电台新闻台CH02 = 08840,2008-05-15 22:59:585161南昌fm频道列表南昌fm频道列表[FM]CH01 = 08380,江西电视台第一套CH02 = 08680,EnglishCH03 = 08720,中央电台音乐之声CH04 = 08910,中央电台中国之声CH05 = 2008-05-15 22:58:504645宁夏fm频道列表宁夏fm频道列表[FM]CH01 = 08380,中央电视台一套CH02 = 09050,银川－新闻综合CH03 = 09500,银川－都市经济CH04 = 09640,中央－中国之声CH2008-05-15 22:57:422871山东淄博fm频道列表山东淄博fm频道列表[FM]CH01=08900,淄博电台新闻频道CH02=09260,淄博电台都市之声CH03=10000,淄博交通文艺广播CH04=10500,淄川电台频道2008-05-15 22:55:307344深圳福田fm频道列表深圳福田fm频道列表[FM]CH01 = 08780,华夏之声CH02 = 08830,商业一台(香港)CH03 = 08980,深圳电台.新闻频道CH04 = 09180,广东卫星台CH05 = 02008-05-15 22:54:031328天津fm频道列表天津fm频道列表[FM]CH00 = 08780,天津广播娱乐台CH01 = 09110,天津广播生活台CH02 = 09200,天津广播滨海台CH03 = 09250,中2008-05-15 22:52:4711029武汉fm频道列表武汉fm频道列表[FM]CH01=8380,湖北电视台CH02=8960,武汉交通台CH03=9160,楚天卫星台CH04=9270,楚天交通体育台CH05=9360,武汉人民电台2008-05-15 22:52:077737浙江温州fm频道列表浙江温州fm频道列表[FM]CH01=08880,温州电台经济交通台CH02=09490,温州电台新闻台CH03=09820,杭州电台城市之声CH04=10030,温州电台音乐2008-05-15 22:48:205893重庆fm频道列表重庆fm频道列表[FM]CH01 = 08810,重庆音乐台CH02 = 09380,重庆都市台CH03 = 09550,重庆交通台CH04 = 09680,重庆新闻台CH05 = 10150,重庆经济2008-05-15 22:46:598515深圳fm频道列表深圳fm频道列表[FM]CH01=CH01=08740, 中央三套.音乐之声 CH02=08750, 珠海交通音乐频道 CH03=08780, 华夏之声2008-05-15 22:46:077871北京fm频道列表北京fm频道列表[FM]CH01=10060,北京新闻广播CH02=10730,北京城市管理CH03=10250,北京体育广播CH04=09740,北京音乐台CH05=10390,北京交通广播CH06=08760,北京2008-05-15 22:44:1621788上海fm频道列表上海fm频道列表[FM]CH01=08790,国际电台EasyFMCH02=08990,东方电台都市792CH03=09140,中央电台经济之声CH04=09240,海上戏剧CH05=09340,990新2008-05-15 22:42:1214485bh1417 pdf datasheetThe BH1417F is a FM stereo transmitter IC that transmits simple configuration. The IC consists of a2008-05-01 10:39:4951FM解调器电路几种FM解调器电路2008-04-21 11:49:591294FM发射电器电路图FM发射电器22007-06-26 17:53:12739