def METHOD_NAME(self):
    start = time.time()
    print('Beginning upload via channel sockets.')
    (pre_trig, post_trig, offset) = self._pre_store()
    for n in range(int(self._uutcmd(self._get_board_site(), 'NCHAN'))):
        volts = float(self._uutcmd(self._get_board_site(),
                                   'GAIN:%02d' % (n + 1,)).split(' ')[1].strip('V'))
        if self._debugging():
            print(('channel %d range = %0.2fV' % (n + 1, volts)))
        self._store_channel(n + 1, offset, pre_trig,
                            post_trig, self.clock, [0 - volts, volts])
    print(('Upload via channel sockets returned in %0.1f seconds.' %
           (time.time() - start)))