Transmitters of electronic signals; anti-interference devices [electricity]; radio apparatus; satellite navigational apparatus; satellite navigational instruments; navigational instruments; radar apparatus; electro-dynamic apparatus for the remote control of signals; radio transmitters; transmitters [telecommunication]; satellite receivers; satellite antennas; satellite TV antenna dishes; transponders; global positioning system [GPS] apparatus; satellites for scientific purposes; internal modems; radar reflectors; radio receivers; antennas for wireless communication equipment