| Electronics > Beginners |
| Recommend a good RF projet ? |
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| ogden:
--- Quote from: bd139 on July 22, 2019, 08:12:04 am ---Get an amateur radio license first. --- End quote --- Right. Other way around: there are loads of interesting RF projects that does not transmit but receive instead. |
| bd139:
Good point. Get a license before you build a transmitter though. It gives you some allocated space to play in when you screw up where you'll cause little damage. Even the ISM bands have heavy power and antenna restrictions which you need to understand before wandering in with a nuke. Good RX project. Read it and build the first project: http://www.arrl.org/files/file/Product%20Notes/chapter_1.pdf Here's the one I built to get an idea what results to expect: ..... If you have discrete parts you can build a direct conversion receiver as well. Typical example: http://www.phonestack.com/farhan/dc40.html |
| Nitrousoxide:
A superheterodyne receiver would be a good challenge! It involves amplifier, mixer and filter design. |
| lordvader88:
Ok some good ideas here. I'm going to make a 2 BJT transismitter, and use the hybrid pi-model and see if I'm anywhere near right. Lot's of basic circuits I should do it for because I know I'll get stuck. |
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