[gpm]

I think the court system is generally capable of resolving whether or not a bug makes a product defective. Courts and the legal system are very experienced at dealing with ambiguity.

Absent marketing to the contrary (prior to sale), I would consider a software defined radio that cuts out for 10-15s at a time defective. That out right breaks a lot of use cases. If that's a software (and not instead the result of something like damage to your particular unit) I would expect that to be fixed in a reasonable period of time for a product to be considered supported.