CHIRP

• the device does include a tune_step field in it's channel memory block, but
• get_features() sets has_tuning_step = False and the tune_step field is never modified.
• Code trying to set channels examines has_nostep_tuning when deciding to emit an error

        if self.valid_tuning_steps and not self.has_nostep_tuning:
            try:
                step = required_step(mem.freq)
                if step not in self.valid_tuning_steps:
                    msg = ValidationError("Frequency requires %.2fkHz step" %
                                          required_step(mem.freq))
                    msgs.append(msg)
            except errors.InvalidDataError, e:
                msgs.append(str(e))

• setting has_nostep_tuning works, but note that valid_tuning_steps is set to [5.0, 10.0, 15.0, 20.0, 25.0, 30.0, 50.0, 100.0] (aka COMMON_TUNING_STEPS), which doesn't match the settable tuning steps on the radio, which are: [2.5, 5.0, 6.25, 10.0, 12.5, 20, 25, 30, 50]