5Breeze The RP2040 is a mass-produced product from a publicly traded company, so it's highly unlikely that there will be any supply shortages. The QSD front end has many discrete components that can be replaced, and the seller cannot control them. Furthermore, the high-frequency head is even more complicated, and he has the ability to acquire and store all the inventory from Taobao 1688, which makes the supply very secure. I'm planning to first address the issue of connecting the Pi SDR to the computer data stream.
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