> Radios are ubiquitous in modern technology, and getting a deeper understanding of how they work can have surprising career benefits too! Indeed. The problem

> Radios are ubiquitous in modern technology, and getting a deeper understanding of how they work can have surprising career benefits too! Indeed. The problem with many modern ham radios of any sufficiently complex feature set - especially when it comes to cheap hackable radios or digital radios - is that a lot of the functionality is hidden away in blackbox ASIC hardware blocks that have no public datasheets (e.g. BK4819 powering Quansheng's radios, Si4732, or for anything DMR, the AMBE-2020 vocoder). It's truly a miracle what the hacker community has gotten out particularly out of the Quansheng chipset.