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Marine Radios
Thanks Jack,
According to what you posted, "D" class is for VHF and "E" class is for HF radios. The requirements you posted are otherwise identical. krj Jack Painter wrote: "krj" wrote Jack, What is the difference between "D" class and "E" class DSC/GMDSS krj The differences listed below appear almost non-existent, but I believe that the "E" manufactured radios are intended to allow greater flexibility in both distress and general messaging instructions sent via DSC. In other words, the receiving radios "might" be allowed to be commanded to a specific frequency after DSC message on Ch-70. Jack http://www.navcen.uscg.gov/marcomms/gmdss/dsc.htm Classes of Digital Selective Calling Class D: Minimum DSC capability for VHF marine radios carried by recreational boaters, commercial fishing vessels, and other non-SOLAS regulated vessels. Class D required capabilities include: Distress call All-ships call Individual station call Use of distress, urgency, safety and routine priorities Nature of distress Distress coordinates Time for last (distress) position update Type of subsequent communications Radio VHF channel Display Receive distress relay and distress acknowledgment calls Alarm Class E: Minimum DSC capability for HF marine radios carried by recreational boaters, commercial fishing vessels, and other non-SOLAS regulated vessels. Class E required capabilities include: Distress call All-ships call Individual station call Use of distress, urgency, safety and routine priorities Nature of distress Distress coordinates Time for last (distress) position update Type of subsequent communications Radio channel or frequency Display Receive distress relay and distress acknowledgment calls Alarm |
#2
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Marine Radios
Rgr that - didn't mean to include the E class comparison. Not sure if all or
many VHF radios sold in the US are D-class, since the capablities here for distress messaging are not implemented yet. Maybe a dealer on the list can verify whether radios for sale here are all D models yet... Jack "krj" wrote Thanks Jack, According to what you posted, "D" class is for VHF and "E" class is for HF radios. The requirements you posted are otherwise identical. krj Jack Painter wrote: "krj" wrote Jack, What is the difference between "D" class and "E" class DSC/GMDSS krj The differences listed below appear almost non-existent, but I believe that the "E" manufactured radios are intended to allow greater flexibility in both distress and general messaging instructions sent via DSC. In other words, the receiving radios "might" be allowed to be commanded to a specific frequency after DSC message on Ch-70. Jack http://www.navcen.uscg.gov/marcomms/gmdss/dsc.htm Classes of Digital Selective Calling Class D: Minimum DSC capability for VHF marine radios carried by recreational boaters, commercial fishing vessels, and other non-SOLAS regulated vessels. Class D required capabilities include: Distress call All-ships call Individual station call Use of distress, urgency, safety and routine priorities Nature of distress Distress coordinates Time for last (distress) position update Type of subsequent communications Radio VHF channel Display Receive distress relay and distress acknowledgment calls Alarm Class E: Minimum DSC capability for HF marine radios carried by recreational boaters, commercial fishing vessels, and other non-SOLAS regulated vessels. Class E required capabilities include: Distress call All-ships call Individual station call Use of distress, urgency, safety and routine priorities Nature of distress Distress coordinates Time for last (distress) position update Type of subsequent communications Radio channel or frequency Display Receive distress relay and distress acknowledgment calls Alarm |
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