The VFO is an Arduino nano and Si5351. IF is at 9Mhz and uses a crystal filter board sourced from AliExpress. Interestingly there is RF preselection using electronically switched capacitors and a varactor diode.
Audio output is an LM386. There's AGC and the radio even has squelch.
What is, perhaps, missing is AM reception.
It is wonderful to see such a project in Silicon Chip.
1 comment:
I have been meaning to buy this mag. It has been years since I bought an electronics magazine. I think about 3 years ago I bought one (SC?) from a news and book store at a train station for a long train ride. It was full of microcontroller plant moisture meters and other useless stuff LOL!
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