It boggles my mind. Many of the newer hand held radios are sdr based but they instead insist on providing only proprietary interfaces that only work with their shitty proprietary digital modes so if you actually want to use a radio to do interesting things in the digital space, you need to go antenna to ADC to DAC to ADC to your CPU to DAC to ADC to DAC to antenna with a gain control step at every translation using all these little ADC+DAC modems that are popping up.

This whole state of affairs is painfully stupid and holding ham radio back several decades. We need open source SDR handheld radios like the M17/OpenRTX folks are working on.

More than that, literally all of this is trivial to do over Bluetooth. Which also provides galvanic isolation. Every rig should just have this built in.

The fact that the industry hasn't figured this out, absolutely boggles me.