what are the best frequency in communication?

Question

in maritime industry

Answer 1

With Maritime It would be VHF (very High Freq) due to the lack of Line of sight with what you want to talk to. That is the same as most commerical jets use. Now UHF can be good to (ulta HIgh Freq) and that is what the majority of the Military aircraft use. With VHF they have there own matitime band. Now for close comms HF is fine. (high Freq) So there you go.

Answer 2

For short range they use VHF, this has good voice quality but poor range.

For maximum range there are two options, short wave (HF) and satellite. HF means anything from 6-160m wavelength (50MHz to 1.8MHz), with the 20-160m wavelengths you can often get right round the world with relatively little power. So whereas a VHF rig may need 50 watts to be understood at 20 miles a short wave transmitter might go 8,000 miles on 10 watts. Satellite communications, typically in the 6-15GHz range (X, C and Ku bands), give the best quality coverage these days. Clean voice comms throughout the whole globe. But the ultimate self reliant way to contact other people is still morse code on an HF rig.

Answer 3

VHF is clearer and sounds better however it is limited by line of sight so its range can somtimes be lacking. HF comms allows for over the horizon communications as the radio wave bounces off the ionisphere but its quality is severely degraded due to the way the wave travels.