Explosion Proof Gmdss Handheld Portable Two Way Marine VHF Radio Telephone Apparatus - China VHF Radiotelephone and Marine Radiotelephone price | Made-in-China.com
CHAPTER 3
Radio Telephones – MC Communications
Radiotelephone - Wikipedia
Portable two way Survival craft VHF Radiotelephone. GMDSS Radio - www.psicoestudi.com