a_bakioglu
New member
According to GMDSS (Global Maritime Distress and Safety System) in some countries, VHF channel 06 (156.30 Mhz) is suggested as "communication between ship and aircrafts". How is it possible?
A marine VHF radio only operates on pre-assigned standard, international frequencies known as channels. Users cannot switch frequencies, instead they can only switch channels, 22 channels suitable for bridge to bridge communication (simplex channels) and limited to VHF marine band (156 - 174 Mhz). So, mariners are not able to switch aviation band (108 - 134 Mhz)
I haven't seen any aviation VHF set before. Although aviators switch between frequencies, I think civilian aviation VHF limited to aviation band. Am I correct?
And yet, if one could switch beyond their sector bands, Marine VHF uses Frequency Modulation where Aviation VHF uses amplitude modulation for voice communications.
Do civilian aircraft VHF sets capable of communicating with Marine VHF sets, or do they carry additional VHFs for communication with Marine vessels? (Or do only special crafts such as SAR helicopters are capable?)
A marine VHF radio only operates on pre-assigned standard, international frequencies known as channels. Users cannot switch frequencies, instead they can only switch channels, 22 channels suitable for bridge to bridge communication (simplex channels) and limited to VHF marine band (156 - 174 Mhz). So, mariners are not able to switch aviation band (108 - 134 Mhz)
I haven't seen any aviation VHF set before. Although aviators switch between frequencies, I think civilian aviation VHF limited to aviation band. Am I correct?
And yet, if one could switch beyond their sector bands, Marine VHF uses Frequency Modulation where Aviation VHF uses amplitude modulation for voice communications.
Do civilian aircraft VHF sets capable of communicating with Marine VHF sets, or do they carry additional VHFs for communication with Marine vessels? (Or do only special crafts such as SAR helicopters are capable?)