| Frequency measuring instruments |
| Radio installed on ships for radio navigation |
| Apparatus for life-saving radio equipment installed on ships |
Two-way radio phone |
| Satellite Emergency Positioning Indicating Radio Beacon (EPIRB) |
| Search And Rescue Radar Transponder (SART) |
| Transmitter and receiver equipment for maritime mobile services radio stations conducting digital selective calling (DSC) communications, etc. |
DSC (MF/HF) transmitter and receiver equipment |
| DSC (MF/HF) receiver equipment |
| DSC (VHF) transmitter and receiver equipment |
| DSC apparatus (DSC equipment (class A)) |
| Narrow band direct print (NBDP) apparatus |
| Receiver for a global satellite navigation system |
| Receiver for a terrestrial radio navigation system |
| Automatic identification system |
| Inmarsat advanced function pager apparatus |
| DSC receiver apparatus |
DSC receiver equipment (MF) |
| DSC receiver equipment (MF/HF) |
| DSC receiver equipment (VHF) |
| Navtex receiver equipment |
| Inmarsat ship earth station radio equipment apparatus |
| Radio equipment apparatus installed on aircraft |