Originally Posted by roverhi
ly have much tighter frequency control than that of amateur radios. Supposedly transmitting on Marine SSB frequencies with a modified Ham Radio transmits on two wide a frequency spectrum causing interference with other channels.
Ham SSB radios typically cost a 1/3rd to 1/2 as much as a Marine SSB radio. Don't know whether that difference in price is due to better frequency control. design for a marine environment or just the "Marine' designation on the label.
Marine radios are made fool-proof for idiots to operate. HAM radios typically have many more controls and settings which allow you to adjust bandwidth, etc. This is why it takes training and a HAM license to operate the HAM SSB. The additional marine radio cost is the "idiot tax" IMHO. There is no "better" frequency control with a marine radio but rather you don't have to think about what you're doing with the Marine radio whereas you do have to think about what you're doing when you use the HAM radio.