In an earlier question, there seemed to be some surprise when I (indirectly) asked about radio modes accessible to a blind operator.
First question: So how do blind hams operate?
If I were to be blind-folded, I could not operate any of my radios, HF or VHF, as I could not even tell if the rig was tuned to a proper legal frequency, as all the radio info is only output via LEDs or LCD displays. I can use a few iPhone apps blindfolded (I've actually written a couple iOS apps for just that use case); the macOS command-line Terminal is usable via VoiceOver; but all of my Mac and Linux SDR apps (and thus digital modes) would be completely unusable, AFAIK.
Second question: If one were to design radios or SDR applications or digital modes or an operating station targeted for vision impaired amateur radio operators, what would be a good set of requirements to optimize for that use case?
For instance: perhaps voice (or Morse Code?) readout for all "front panel" information displays, and some form of feedback for all radio control settings; connector ports that could all be identified by touch.
Any other necessary or beneficial requirements?