Radio Built Record
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Radio Built Record
I would like to build a radio receiver capable of receiving around 140-160 mhz in NFM. I want to be able to get a clear signal to feed to my computer sound card, and also posibbly to a ADC later on. I want to be able to record in at least 96khz audio, if not higher. I have some basic knoledge of electronics, and was wondering if anyone knows how dificult this will be, and what parts and schematics i will need to have in order to build it. You would probably be better just buying a cheap radio or scanner which will also give you access to other channels, frequencies as well as giving you stable and verifiable frequencies. You could pick one up cheap in any secondhand shop usually. However, if you want to build one from components it's possible, but it is better if you can get a kit with a premade PCB. You would then probably be better looking for an IC solution rather than discrete. I have given a sample data sheet for the Motorola MC3362 which includes PCB layouts. Just put 'semiconductor data sheet fm radio vhf' in your search engine and you'll get lots of references. The only other thing I'm curious about is why you would want to record NFM at more than 96kb (I presume you mean the MP3 rate which is kbps (kilo bits per second not kHz)? NFM is really designed to be used for voice and to allow a lot of channels in a narrow frequency band. Increasing the recording quality above 96kbps will not gain anything as the original quality won't be there in the first place. Similarly, using a specialist ADC solution won't gain anything over a soundcard solution. Good luck and have fun. JUST SEEN WHAT YOU'VE ADDED
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US $379.99
