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#1
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On Mon, 14 Mar 2005 19:46:25 GMT, Bruce in Alaska
wrote: snippage Nice explanation Chuck. I would add just a few thoughts to the above. First: Radio Prodceedures are covered extensivly in 48CFR80 starting at 80.311. Only the Master, of a US Flagged vessel, or the person responcible for the vessels Radio Station, (Radio Officer) may authorize the transmission of a Distress Signal, or Urgency signal. (Mayday, Pan Pan) Second: Urgency Siganls differ from Distress Signals in that Urgency Siganls are messages that carry Distress Information that are about another Station, and NOT the Transmitting Station. That is why USCG use the "Pan Pan" Urgency Signal preceeding any message that concerns a "Reported ship in Distress", and it means that the information passed is in regard to a MayDay Call received and reported. This is opposed to a MayDay Relay Signal which is sent by a vessel that is relaying an initial Mayday Signal for a Distressed Vessel, that may not have been received and a Acknowledged by the appropriate Agency. (USCG for US Waters) In Canada, we use "Mayday Relay" to relay a message from a distressed vessel (and a US book I have also uses "Mayday Relay" for this purpose). Normally, when a vessel makes a Mayday call, the Coast Guard will respond and verify the details, then do a "Mayday Relay" to re-broadcast the distress message. A "Pan Pan" or Urgency message indicates that the vessel has an urgent message concerning the safety of a ship, aircraft or other vehicle, or the safety of a person. The Coast Guard will also use a "Pan Pan" message to relay a vessel's Urgency message. In practice, the Urgency call is used when a vessel requires assistance, but is not in grave and imminent danger (the requirement for assistance is often not particularly urgent, but we don't have any lesser grade of call.) Although "Mayday" officially indicates the _vessel_ is in grave and imminent danger, you are unlikely to be shot if you use it for man overboard or serious medical emergencies. Even if Urgency is used for these situations, I expect they will be handled with top priority. Third: The Silence Signal (Seelonce Mayday) is used by the sender of the Distress Signal, to initiate a Quiet Frequency for the purpose of passing Distress Traffic. It may apply to individual Stations, OR All Stations. The Distressed Station MAY deligate control of the Frequency to another Station at its discression. It is resinded by sending the Silence End Signal. (Seelonce Feeenee, or Pru-donce) Fourth: Order of Priority is: 1. Mayday (Distress Signal) 2. Pan Pan (Urgency Signal) 3. Sellonce Mayday (Silence Signal) A "Seelonce" message doesn't have a place in the priority list - it is just a message indicating that a Top Priority (Distress) situation exists. 4. Securite (Security Signal) 5. all other traffic Bruce in alaska wondering if this is going to start another jackieboy rant....... -- Peter Bennett, VE7CEI peterbb4 (at) interchange.ubc.ca new newsgroup users info : http://vancouver-webpages.com/nnq GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca |
#2
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Hi Peter!
I do not disagree with you on the matter that CGs will procees a Pan Pan or Mayday according to the emergency of the situation if described, but when I got my operator licence, them calls were clearly described as such: Mayday: Life threatening emergency. Pan Pan: Non-life threatening emergency. I do not believe the boat is the greatest concern to rescue people and CGs. So I believe asking the question "Is someone's life in danger?". That's the only thing one should ask himself. Yes: Mayday, Nope: Pan Pan and that's it. Another good thing is that you can't get shot by a Canadian CG as they don't carry guns! ;-) Jean Montreal Hoping you guys in BC have a better summer than the winter was for you! That applies also to you US West coast people! Peter Bennett wrote: Although "Mayday" officially indicates the _vessel_ is in grave and imminent danger, you are unlikely to be shot if you use it for man overboard or serious medical emergencies. |
#3
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On Wed, 16 Mar 2005 11:33:59 -0500, Jean Dufour
wrote: Hi Peter! I do not disagree with you on the matter that CGs will procees a Pan Pan or Mayday according to the emergency of the situation if described, but when I got my operator licence, them calls were clearly described as such: Mayday: Life threatening emergency. Pan Pan: Non-life threatening emergency. I do not believe the boat is the greatest concern to rescue people and CGs. So I believe asking the question "Is someone's life in danger?". That's the only thing one should ask himself. Yes: Mayday, Nope: Pan Pan and that's it. The CPS Maritime Radio Course manual states that a Distress (Mayday) call can only be sent if the _vessel_ is in grave and imminent danger, or is aware of another vessel that is in grave and imminent danger - no mention of people. However, I have a US book that does include "person" in the above definition, and I recall seeing something from a Canadian Coast Guard website that indicated that a person in danger could justify a Mayday. I always teach that whether a person in danger is a justifies Mayday or not, it will be handled with the highest priority, regardless of how the originator of the call started it. Another good thing is that you can't get shot by a Canadian CG as they don't carry guns! ;-) this is true... Jean Montreal -- Peter Bennett, VE7CEI peterbb4 (at) interchange.ubc.ca new newsgroup users info : http://vancouver-webpages.com/nnq GPS and NMEA info: http://vancouver-webpages.com/peter Vancouver Power Squadron: http://vancouver.powersquadron.ca |
#4
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On Tue, 15 Mar 2005 17:37:33 -0800, Peter Bennett
wrote: /// Although "Mayday" officially indicates the _vessel_ is in grave and imminent danger, you are unlikely to be shot if you use it for man overboard or serious medical emergencies. /// There is something about this note on Mayday that doesn't seem quite right to me. Mayday is (in my view) associated with imminent danger to life. A ship, a sail boat, or an airplane may be lost, but if life is not in question, the degree of attention is not the highest, as I see it. Brian Whatcott Altus, OK |
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