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Old 27th August 2012, 06:08 AM   #11
diyAudio Member
Join Date: Aug 2012
Location: Trivandrum, Kerala State
Default Hybrid FM Stereo Encoder for FM Transmitters

I designed an FM Quadraphonic Coder. The circuit diagram of its timing section is attached.
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File Type: pdf FM Quadraphonic Encoder.pdf (42.7 KB, 74 views)
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Old 21st January 2013, 09:38 PM   #12
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Join Date: Jan 2013
Originally Posted by syamkumar View Post
Hi Friends,
I am going to make a Hybrid 256x oversampled FM Stereo Encoder. I know only basic idea of FM stereo multiplexing (like 2x, 8x oversampled circuit) also I read in an article circuits like DAC, Sine LUT ROM etc can be used for higher sampled MPX system. But I don't know how to implement the circuit and where to begin.Please help me. I expect good design ideas and circuits. Sorry for my poor English. Have a nice day
Hi Syamkumar, this is a 1KHz tone in a 16x oversampling coder i am working:

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Old 25th January 2013, 08:00 PM   #13
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Join Date: Jan 2013
Does anyone have a circuit of a MONO FM Transmitter that can be plugged into the USB port of a computer?
In this way it would receive 5 VDC for power and be able to receive audio from the computer.

All the best for 2013 ! Mad Yank
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Old 25th January 2013, 08:09 PM   #14
DF96 is offline DF96  England
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Join Date: May 2007
This thread is about stereo encoding.
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