Muhammad Faraz Posted March 10, 2007 Report Share Posted March 10, 2007 Can any one help to give me the circuit diagram for FM Transmitter for students at low frequency or any student use frequency?????????? It must b rare, it must be unique which is not accessible to every one who is searching the net... Quote Link to comment Share on other sites More sharing options...
audioguru Posted March 10, 2007 Report Share Posted March 10, 2007 You can adjust the values of the tuned circuit in an FM transmitter to operate at nearly any RF frequency you want. But you won't find an FM radio that will receive it.FM usually has a wide bandwidth so a high frequency is used. It would be difficult to frequency-modulate a low frequency carrier. Quote Link to comment Share on other sites More sharing options...
Muhammad Faraz Posted March 12, 2007 Author Report Share Posted March 12, 2007 I want circuit not broach........want a circuit diagram for Transmitter in KHz frequency.....ok plz do help me... Quote Link to comment Share on other sites More sharing options...
audioguru Posted March 12, 2007 Report Share Posted March 12, 2007 Nobody has the circuit for an FM transmitter that operates in kHz frequency.FM transmitters operate at between 88MHz and 108MHz unless you are in Japan where it is a little lower. Some radio amateurs operate narrowband FM at higher frequencies.Wireless microphones used by performers opaerate with FM at UHF frequencies.You must design the circuit yourself if you want it to be different from all the others.Wireless headphones and wireless speakers use an IR beam that is modulated with FM in kHz frequency so if you have an extremely long antenna for the transmitter and for the receiver then you can change it to transmitting kHz radio waves.The VCO in a CD4046PLL IC can make a kHz FM transmitter and its phase detector can make a kHz FM detector. Quote Link to comment Share on other sites More sharing options...
Muhammad Faraz Posted March 13, 2007 Author Report Share Posted March 13, 2007 ??? ??? Anyother Transmitter for experimental purpose?????? can anyone suggest ?????? I need Circuit diagram & Parts discription ::) ::) Quote Link to comment Share on other sites More sharing options...
eplanet Posted March 13, 2007 Report Share Posted March 13, 2007 hello muhammad farazfor this system that must be unique which is not accessible to every one who is searching the net u need to progrmming assembly with microcomputer for example PIC and u should encoding ur data or wave that u can send it. good luck Quote Link to comment Share on other sites More sharing options...
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