def _check_radio(self):
		value1 = self.get_register(0);
		value2 = self.get_register(1);

		if value1 == 0x6fe0 and value2 == 0x5681:
			return True

		self._debug(f'Expected 0x6fe0, 0x5681 and got 0x{value1:04x}, 0x{value2:04x}')

		return False

	def _get_default_register_value(self, register):
		return self._default_register_values.get(register, {})

	def _set_default_register_values(self):
		self._last_format_config = {}

		return sent_packet

	def multi_transmit(self, message, channels, retries = 3, delay = 0.1, syncword = None, submit_queue = '__DEFAULT__', format_config = None):
		if len(channels) == 0 or retries == 0:
			self._error("Asked to send the message {} a total of zero times ({} channels, {} retries)".format(message, channels, retries))

		# Wait at-least 650 microseconds between frames
		min_delay = 650.0 / 1000000.0
		post_delay = min_delay
		final_delay = delay

		for channel_idx in range(len(channels)):
			if channel_idx == (len(channels) - 1):
				retries -= 1
			channel = channels[channel_idx]