docs: def save(self, *args, **kwargs):
          """
          1. set polarization according to AntennaModel (self.model.polarization) when creating a new antenna
          2. inherit latitude and longitude from node
          """
          if not self.pk and self.model.polarization:
              self.polarization = self.model.polarization
          super(Antenna, self).save(*args, **kwargs)