Sets can be fixed or portable. A fixed set generally has the advantages of more reliable power source, higher transmit power, larger and more effective aerial and bigger display and buttons. A portable set(often essentially a waterproof, VHF walkie-talkie in design) can be carried on a kayak, or to a lifeboat in an emergency, has its own power source and is waterproof if GMDSS-approved.
Features
- Directional wireless phone with built-in DSC for small ships - Frequency range : 156.025~162.025 MHz - Waterproof to 1M depth - Spurious : 70dB - Displaying four-digit channels as amended by ITU RR Appendix 18 - Airline Output : 6W / 1W - Reception sensitivity : -112 dBm - Integrated channel selection : 70 dB - Float Free - Internal digital selection call function (ITU-R M493-13 satisfied)