Nautilus Marine Rescue GPS and Nautilus PLB

[CarcharodonCarcharias]

Pamarine - Marine and Offshore, Rescue and Safety

Thank you!

 

[tursiops]

COSPAS/SARSAT Satellite System is monitored 24/7 worldwide

I think he meant that his battery only last 24-48h, so it can't be monitored 24/7, bur rather 24/1 or 24/2.

 

[CWK]

I think he meant that his battery only last 24-48h, so it can't be monitored 24/7, bur rather 24/1 or 24/2.

Precisely.

 

[Kevrumbo]

PLBs with class 2 batteries are rated for 24Hrs at –20°C, which may be about 48Hrs in warm water. Compas-Sarsat cannot track you 24/7 as you suggest. PLBs are not too useful if there are no SAR assets at hand.

I think he meant that his battery only last 24-48h, so it can't be monitored 24/7, bur rather 24/1 or 24/2.

Precisely.

Again, a mistaken & moot argument above nonetheless @CWK.

Look . . .the main takeaway point is that within those 24 to 48 hours of PLB battery life, your activated 406 MHz PLB beacon is a known distress signal being tracked worldwide via the COSPAS-SARSAT Satellite System which itself is monitored 24/7 & 365 days a year. Again, if you set up your designated Emergency PLB Contact smartly beforehand with your Liveaboard/Diveboat Day-to-Day Full Itinerary and dive operations cellphone contact information, a Regional COSPAS-SARSAT Satellite Rescue Coordination Center can still contact that local dive operation to organize a Search and Rescue -even if there are seemingly no official national governmental SAR assets at hand in the Maldives like you claim @CWK- Do you understand @CWK ? Is that clear @tursiops ? (There's a reason why you may only do a functional signal test on a PLB within the first five minutes of the hour, because any persistent signals remaining after that time interval of five minutes past the hour are understood to be legitimate 406 MHz emergency distress calls.)

When I dive LOBs, I know there are vessels with AIS within range. Even when I dive resorts in the Maldives, there should be LOBs within range. There are over a hundred registered LOBs in the Maldives.

Even if there are no LOBs in the vicinity, SAR should have been alerted as part of the lost/missing diver protocol. SAR ships may be called out in heavy weather. They would have AIS to rescue their own crew should they be swept overboard in rough seas. SAR ships should be able to locate the Nautilus signal.

As I have already mentioned, I have both the Nautilus and a PLB. It is irrelevant to me that a PLB may have some advantages over the Nautilus. The Nautilus also has some advantages over a PLB. I do not rely exclusively on either.

Educate yourself @CWK , and learn the VITAL advantage that 406 MHz PLB Distress Signal Telemetry has compared to a VHF AIS/DSC Emergency Transmission for 24 for 48 hours of battery life (or whatever particular battery duration of the Nautilus Marine VHF/GPS Transceiver has) -->THERE IS NO GUARANTEE THAT YOUR DISTRESS SIGNAL WILL EVEN BE ACKNOWLEDGED IF NO ONE IS WITHIN 5 KILOMETERS LINE-OF-SIGHT VHF RADIO RECEPTION RANGE (AND THAT'S GIVEN A CALM SEA STATE AND CLEAR WEATHER CONDITIONS):

In contrast, the PLB upon activation will always be tracked direct to satellite, and indicated as a real time emergency distress signal uniquely identifying YOU for as long as the duration of the PLB unit's battery power.

 

[Dan]

My wish is to have a PLB that is waterproof down to 40m depth so I don’t need to put it in a canister and with DIY battery replacement like the Nautilus MRG. I think that’s what @CWK meant by Nautilus PLB.

 

[CWK]

Look . . .the main takeaway point is that within those 24 to 48 hours of PLB battery life, your activated 406 MHz PLB beacon is a known distress signal being tracked worldwide via the COSPAS-SARSAT Satellite System which itself is monitored 24/7 & 365 days a year. Again, if you set up your designated Emergency PLB Contact smartly beforehand with your Liveaboard/Diveboat Day-to-Day Full Itinerary and dive operations cellphone contact information, a Regional COSPAS-SARSAT Satellite Rescue Coordination Center can still contact that local dive operation to organize a Search and Rescue -even if there are seemingly no official national governmental SAR assets at hand in the Maldives like you claim @CWK- Do you understand @CWK ? Is that clear @tursiops ? ]

To be clear, I said,

I have not seen any SAR assets in the Maldives that could be deployed in response to a PLB activation.

I do not claim that there is no official national goverment SAR agency in the Maldives. To the contrary, I am aware that such an agency exists. I would expect a SAR boat to be clearly distinguishablle but after 4 trips to the Maldives within the last 12 months, I yet to see a SAR boat around Male or other atolls. However, on almost every day that I was on a LOB in the Maldives, I saw other LOBs in the vicinity. Even when I was diving from resorts in the Maldives, there would be LOBs diving the same sites.

[QUOTE="Kevrumbo, post: 8269925, member: 46716"]
In contrast, the PLB upon activation will always be tracked direct to satellite, and indicated as a real time emergency distress signal uniquely identifying YOU for as long as the duration of the PLB unit's battery power.[/QUOTE]
It is useless being tracked by a satellite if there are no SAR assets that can get to you before that PLB battery dies. Note that in this respect, @Dan_T has had contact with Nautilus and has been told, if I recall correctly, that the Nautilus will continue transmitting for 80 to 90 hours.

Educate yourself @CWK , and learn the VITAL advantage that 406 MHz PLB Distress Signal Telemetry has compared to a VHF AIS/DSC Emergency Transmission for 24 for 48 hours of battery life (or whatever particular battery duration of the Nautilus Marine VHF/GPS Transceiver has) ...

Although it appears to quite escape you, I do own a PLB. I am quite aware of the advantages of a PLB over a Nautilus. I am also quite aware of the advantages of a Nautilus over a PLB.

If I had to choose between a Nautilus or a PLB (but not both) for use in the Maldives, I'd choose a Nautilus. You are at liberty to decide otherwise.

 

[CWK]

My wish is to have a PLB that is waterproof down to 40m so I don’t need to put it in a canister. I think that’s what @CWK meant by Nautilus PLB.

Yes. A Nautilus PLB that is rated for 100m.

 

[Kevrumbo]

It is useless being tracked by a satellite if there are no SAR assets that can get to you before that PLB battery dies. . .

Now you're being intransigently ignorant as well as mistaken @CWK . . .

Look I'm gonna tell you again . . .the main takeaway point is that within those 24 to 48 hours of PLB battery life, your activated 406 MHz PLB beacon is a known distress signal being tracked worldwide via the COSPAS-SARSAT Satellite System which itself is monitored 24/7 & 365 days a year. FOR THE UMPTEENTH TIME, if you set up your designated Emergency PLB Contact smartly beforehand with your Liveaboard/Diveboat Day-to-Day Full Itinerary and dive operations cellphone contact information, a Regional COSPAS-SARSAT Satellite Rescue Coordination Center can still contact that local dive operation to organize a Search and Rescue -even if you yourself have "yet to see any evidence of governmental SAR assets at hand in the Maldives after four trips in the past twelve months around Male and other atolls", like you claim- Do you savvy @CWK ?

THAT IS THE VITAL ADVANTAGE OF 406 MHZ EMERGENCY COSPAS-SARSAT SATELLITE TELEMETRY OVER VHF AIS/DSC RADIO DISTRESS BROADCAST -an activated 406 MHz beacon will always uniquely indentify you by name and locate your position anywhere worldwide within the PLB's battery life; a Nautilus Marine Rescue VHF/GPS Transceiver even with an 80 or 90 hour battery duration will not guarantee that your distress signal will even be heard if there is no one within five kilometers VHF reception range. (There's a reason why you may only do a functional signal test on a PLB within the first five minutes of the hour, because any persistent signals remaining and detected by the COSPAS-SARSAT Satellite System after that time interval of five minutes past the hour are understood to be legitimate 406 MHz emergency distress calls.)

Although it appears to quite escape you, I do own a PLB. I am quite aware of the advantages of a PLB over a Nautilus. I am also quite aware of the advantages of a Nautilus over a PLB.

If I had to choose between a Nautilus or a PLB (but not both) for use in the Maldives, I'd choose a Nautilus. You are at liberty to decide otherwise.

I'm at liberty to tell you @CWK that you don't know what you're talking about to make an informed choice. . . With the limitations of VHF Radio Technology, there are absolutely no advantages of the Nautilus Marine Rescue VHF/GPS Transceiver compared to a COSPAS-SARSAT Satellite System PLB.

It is patently obvious that you do not understand the advantages of 406 MHz PLB direct to satellite technology over and above a Nautlius VHF broadcast radio product, because you still believe there are and will always be LOB's and day diveboats with marine VHF transceivers to pick-up a VHF distress signal.

Look at this video again, and tell us in this instance what you claim are "the advantages of the Nautilus Marine Rescue VHF/GPS Transceiver over a PLB", given that Nautilus product relies on five kilometers clear good weather & calm seas line-of-sight VHF terrestrial radio reception technology:
Nautilus Marine Rescue GPS and Nautilus PLB

 

[CWK]

Now you're being intransigently ignorant as well as mistaken @CWK . . .

Look I'm gonna tell you again . . .the main takeaway point is that within those 24 to 48 hours of PLB battery life, your activated 406 MHz PLB beacon is a known distress signal being tracked worldwide via the COSPAS-SARSAT Satellite System which itself is monitored 24/7 & 365 days a year. FOR THE UMPTEENTH TIME, if you set up your designated Emergency PLB Contact smartly beforehand with your Liveaboard/Diveboat Day-to-Day Full Itinerary and dive operations cellphone contact information, a Regional COSPAS-SARSAT Satellite Rescue Coordination Center can still contact that local dive operation to organize a Search and Rescue -even if you yourself have "yet to see any evidence of governmental SAR assets at hand in the Maldives after four trips in the past twelve months around Male and other atolls", like you claim- Do you savvy @CWK ?

THAT IS THE VITAL ADVANTAGE OF 406 MHZ EMERGENCY COSPAS-SARSAT SATELLITE TELEMETRY OVER VHF AIS/DSC RADIO DISTRESS BROADCAST -an activated 406 MHz beacon will always uniquely indentify you by name and locate your position anywhere worldwide within the PLB's battery life; a Nautilus Marine Rescue VHF/GPS Transceiver even with an 80 or 90 hour battery duration will not guarantee that your distress signal will even be heard if there is no one within five kilometers VHF reception range. (There's a reason why you may only do a functional signal test on a PLB within the first five minutes of the hour, because any persistent signals remaining and detected by the COSPAS-SARSAT Satellite System after that time interval of five minutes past the hour are understood to be legitimate 406 MHz emergency distress calls.)

I'm at liberty to tell you @CWK that you don't know what you're talking about to make an informed choice. . . With the limitations of VHF Radio Technology, there are absolutely no advantages of the Nautilus Marine Rescue VHF/GPS Transceiver compared to a COSPAS-SARSAT Satellite System PLB.

It is patently obvious that you do not understand the advantages of 406 MHz PLB direct to satellite technology over and above a Nautlius VHF broadcast radio product, because you still believe there are and will always be LOB's and day diveboats with marine VHF transceivers to pick-up a VHF distress signal.

Look at this video again, and tell us in this instance what you claim are "the advantages of the Nautilus Marine Rescue VHF/GPS Transceiver over a PLB", given that Nautilus product relies on five kilometers clear good weather & calm seas line-of-sight VHF terrestrial radio reception technology:
Nautilus Marine Rescue GPS and Nautilus PLB

I certainly agree that there are advantages that a PLB has over the Nautilus. That is why I do own a PLB.

I'm booked on a LOB in the Maldives in May. I know that the LOB I'm booked on has issued their DMs with the Nautilus Lifeline because I saw the DMs carrying them the last time I was aboard. I'm expecting there to be a LOB within line of sight. You are at liberty to disagree.

 

[hammet]

Kevrumbo,

Thank you for your posts. I don't think people have a clear understanding of the difference.
My issue with the VHF rescue system is that I don't think most dive boat operators and recreation vessels know 2 cents about how to use AIS if they are even equipped to receive (which is doubtful) or how to understand a DSC alert when it is received.
The thing is, if a boat 'forgot' a diver, they aren't even going to be looking for him. So when the DSC alert goes off, they don't even realize it is their own emergency they need to respond to!

Secondly, VHF transmission distances, especially from a low wattage power source, are severely hampered by the fact that the victim is on the very surface of the water and possibly in rolling waves. I often have trouble raising other boats and marinas within visual range from my handheld VHF which is more than eight feet above the surface of the water when I hold it up to my face. This is why sailboats mount their VHF antennas on their mast heads.

I would like to see an actual test of the Nautilus in realistic rescue conditions before I purchase.

I use a Resqlink PLB when I sail and keep one attached to my inflatable life jacket. I wish they made a scuba proof one!