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#1
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posted to rec.boats.cruising
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hi again folks,
i'm curious what VHF you would suggest for emergencies, the one you're going to be listening in on when your floating in the middle of the ocean next to your EPIRB after tragedy has struck. i'm thinking of a radio that you keep with you at all times when on deck, the one that never leaves your side. |
#2
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posted to rec.boats.cruising
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The fade today for coastal navigation is the DSC (Digital Selective
Calling). This new breed of VHF is connected to a GPS and has a distinctive signature. In order to make use of this DSC you have to register it with the coast guard. They logged in your signature, call sign, boat description, navigational equipment, emergency and survival gears. Then the information is programmed into their data bank. As I witnessed, when you call the coast guard, traffic and other vessel with the proper equipment the name of your boat with its position appears on the their computer/digital radar system. This way when your are in distress and use your DSC they know your GPS position, the name of your boat and monitor your position. When you are outside of the coast guard radio range some people are using sat/phone and EPIRB. Last week a 36 foot sailboat was rescued by the US guard at approx 200 NM from the coast of Nantucket. "purple_stars" wrote in message ups.com... hi again folks, i'm curious what VHF you would suggest for emergencies, the one you're going to be listening in on when your floating in the middle of the ocean next to your EPIRB after tragedy has struck. i'm thinking of a radio that you keep with you at all times when on deck, the one that never leaves your side. |
#3
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posted to rec.boats.cruising
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#5
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posted to rec.boats.cruising
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![]() It's ARGOS. I use it and in essence you're correct but what the satellites see is a function of the transmitter. Basically you can send a data packet, what's in that data packet is up to you. We have some ocea buoys with GPS and other instrments attached. You can triangulate a transmitter location from the sat passes but the accuracy is in the 1.5 nautical mile range, not the sub 50m range with GPS. PDW wrote: The other emergency device that the around the world racing sailors are using is the French Argo system. This system was primary designed and indented for the French Military. It uses satellites to receives signal from the Argo buoys locate on vessels and then shows the position on a digital computer screen. This way they can track down the position of the racing sailboats at all time and advise of alternative route to avoid hurricane and storms or just giving updates on the race. This Argo system is not public and requires permission to use. Today, if you're looking for audio entrainment while awaiting rescue or just sailing the new Sat/radio could be a good thing to have on board. "chuck" wrote in message ... wrote: The fade today for coastal navigation is the DSC (Digital Selective Calling). This new breed of VHF is connected to a GPS and has a distinctive signature. In order to make use of this DSC you have to register it with the coast guard. They logged in your signature, call sign, boat description, navigational equipment, emergency and survival gears. Then the information is programmed into their data bank. As I witnessed, when you call the coast guard, traffic and other vessel with the proper equipment the name of your boat with its position appears on the their computer/digital radar system. This way when your are in distress and use your DSC they know your GPS position, the name of your boat and monitor your position. When you are outside of the coast guard radio range some people are using sat/phone and EPIRB. Last week a 36 foot sailboat was rescued by the US guard at approx 200 NM from the coast of Nantucket. "purple_stars" wrote in message ups.com... hi again folks, i'm curious what VHF you would suggest for emergencies, the one you're going to be listening in on when your floating in the middle of the ocean next to your EPIRB after tragedy has struck. i'm thinking of a radio that you keep with you at all times when on deck, the one that never leaves your side. I'm not sure you need to be talking to people while you're floating next to your EPIRB! You want to be rescued. If the EPIRB is working, they will know where you are. If it is dark, you might wish you had a flare to help them. But what are you going to tell them on the VHF? You can't just say you're 20 yards south of a used car lot or something. And what would you listen to? The weather? Save the VHF and bring some water and food instead! Others will see this situation differently, I'm sure. Good luck. Chuck |
#6
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posted to rec.boats.cruising
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Thanks for the correction Peter.
You're right it should have spelled Argos instead of Argo. The 1.5 nautical mile range accuracy is not all that bad when you are at sea. However for coastal navigation when you are crossing shipping lanes in the Bay of Fundy when the fog gets very thick it is not too good. Here the coast guards are using DGPS on the coast. I do not know how far the land correction bases can send their signals to validate and correct a GPS position? The same thing would apply to the WAAS. My old Loran is still functioning well and when need it I use it to validate my GPS position or back up. "Peter" wrote in message oups.com... It's ARGOS. I use it and in essence you're correct but what the satellites see is a function of the transmitter. Basically you can send a data packet, what's in that data packet is up to you. We have some ocea buoys with GPS and other instrments attached. You can triangulate a transmitter location from the sat passes but the accuracy is in the 1.5 nautical mile range, not the sub 50m range with GPS. PDW wrote: The other emergency device that the around the world racing sailors are using is the French Argo system. This system was primary designed and indented for the French Military. It uses satellites to receives signal from the Argo buoys locate on vessels and then shows the position on a digital computer screen. This way they can track down the position of the racing sailboats at all time and advise of alternative route to avoid hurricane and storms or just giving updates on the race. This Argo system is not public and requires permission to use. Today, if you're looking for audio entrainment while awaiting rescue or just sailing the new Sat/radio could be a good thing to have on board. "chuck" wrote in message ... wrote: The fade today for coastal navigation is the DSC (Digital Selective Calling). This new breed of VHF is connected to a GPS and has a distinctive signature. In order to make use of this DSC you have to register it with the coast guard. They logged in your signature, call sign, boat description, navigational equipment, emergency and survival gears. Then the information is programmed into their data bank. As I witnessed, when you call the coast guard, traffic and other vessel with the proper equipment the name of your boat with its position appears on the their computer/digital radar system. This way when your are in distress and use your DSC they know your GPS position, the name of your boat and monitor your position. When you are outside of the coast guard radio range some people are using sat/phone and EPIRB. Last week a 36 foot sailboat was rescued by the US guard at approx 200 NM from the coast of Nantucket. "purple_stars" wrote in message ups.com... hi again folks, i'm curious what VHF you would suggest for emergencies, the one you're going to be listening in on when your floating in the middle of the ocean next to your EPIRB after tragedy has struck. i'm thinking of a radio that you keep with you at all times when on deck, the one that never leaves your side. I'm not sure you need to be talking to people while you're floating next to your EPIRB! You want to be rescued. If the EPIRB is working, they will know where you are. If it is dark, you might wish you had a flare to help them. But what are you going to tell them on the VHF? You can't just say you're 20 yards south of a used car lot or something. And what would you listen to? The weather? Save the VHF and bring some water and food instead! Others will see this situation differently, I'm sure. Good luck. Chuck |
#7
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posted to rec.boats.cruising
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wrote in news:%_phg.18671$A26.428180@ursa-
nb00s0.nbnet.nb.ca: designed and indented for the French Military Scary....very scary...(c; (I have a thousand jokes flashing before my eyes, but am laughing too hard to focus on them right now...(c ![]() |
#8
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posted to rec.boats.cruising
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![]() Larry wrote: wrote in news:%_phg.18671$A26.428180@ursa- nb00s0.nbnet.nb.ca: designed and indented for the French Military Scary....very scary...(c; (I have a thousand jokes flashing before my eyes, but am laughing too hard to focus on them right now...(c ![]() ARGOS system works well. And no, I'm not French, but I do have a lot of practical experience with the system, and I'm willing to bet that you don't. PDW |
#9
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posted to rec.boats.cruising
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In article ,
wrote: This system was primary designed and indented for the French Military. Oh Yea, that's those guys that haven't won a war in........How many years? 700, maybe...... |
#10
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posted to rec.boats.cruising
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chuck wrote:
[snip] I'm not sure you need to be talking to people while you're floating next to your EPIRB! You want to be rescued. If the EPIRB is working, they will know where you are. If it is dark, you might wish you had a flare to help them. But what are you going to tell them on the VHF? You can't just say you're 20 yards south of a used car lot or something. And what would you listen to? The weather? Save the VHF and bring some water and food instead! Others will see this situation differently, I'm sure. Good luck. Chuck hi chuck, i just thought it was normal to have a vhf when you were in the water in an emergency. that way the rescuers could talk to you, or maybe if you see their helicopter you can let them know that you see them, or their boat, etc. i don't yell very loud! lol. it just seemed like a good idea to be able to talk to them. |