NorCal Kayak Anglers

Kayak Fishing Zone => Safety First => Topic started by: johnz on March 12, 2022, 02:06:49 PM

Title: EPIRB
Post by: johnz on March 12, 2022, 02:06:49 PM
Yeah, probably time for a battery change!!  Lol.  $85 for just the batteries!!!!


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Title: Re: EPIRB
Post by: NowhereMan on March 12, 2022, 03:53:01 PM
Did you replace it yourself? If so, where did you get the battery?
Title: Re: EPIRB
Post by: johnz on March 12, 2022, 05:34:20 PM
Did you replace it yourself? If so, where did you get the battery?
That's the plan. Simple two prong plug, easy peasy. Battery number was clearly printed on the old batteries.

https://beaconbatteryreplacement.com/product/acr-aquafix-terrafix-plb-200-plb-battery-p-n-a3-06-2326/


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Title: Re: EPIRB
Post by: Otis on March 12, 2022, 09:55:30 PM
Why do you have an EPIRB?
Title: Re: EPIRB
Post by: NowhereMan on March 12, 2022, 10:27:49 PM
Why do you have an EPIRB?

It's a PLB, which is the hand-held equivalent of what you're probably thinking of. IMHO, it's a good thing to consider carrying when kayak fishing. Hopefully, you'll never need to use, but if you do, it could be a life-saver. I think this is the one I have:

https://www.acrartex.com/products/resqlink-400/

Title: Re: EPIRB
Post by: NowhereMan on March 12, 2022, 10:30:30 PM
Did you replace it yourself? If so, where did you get the battery?
That's the plan. Simple two prong plug, easy peasy. Battery number was clearly printed on the old batteries.

https://beaconbatteryreplacement.com/product/acr-aquafix-terrafix-plb-200-plb-battery-p-n-a3-06-2326/

It seems that it's $130 to send it in and get the battery replaced. I like to do DIY things, but in this case, I think I'd be inclined to let the manufacturer do it. In any case, let us know how it works out.
Title: Re: EPIRB
Post by: johnz on March 13, 2022, 02:26:59 PM
Did you replace it yourself? If so, where did you get the battery?
That's the plan. Simple two prong plug, easy peasy. Battery number was clearly printed on the old batteries.

https://beaconbatteryreplacement.com/product/acr-aquafix-terrafix-plb-200-plb-battery-p-n-a3-06-2326/

It seems that it's $130 to send it in and get the battery replaced. I like to do DIY things, but in this case, I think I'd be inclined to let the manufacturer do it. In any case, let us know how it works out.
It's an easy replacement and I'll have $50 more to buy more gear with, lol.

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Title: Re: EPIRB
Post by: johnz on March 17, 2022, 09:04:12 PM
Batteries came today, good until 2027.  Took 5 mins max to put it all back together. Self tested and it tests all good.  Updated all my information on the beacon registration site while I was at it.


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Title: Re: EPIRB
Post by: NowhereMan on March 25, 2022, 05:00:26 PM
I decided to do the DIY battery replacement too. Mine only has 1 battery, which cost $40. Super-simple, literally just 5 minutes, and another 5 minutes to test it. It should be good for another 5 years...


Title: Re: EPIRB
Post by: bluekayak on March 25, 2022, 06:38:32 PM
Would be tragic to have one of those and figure out the battery was dead when you need it
Title: Re: EPIRB
Post by: NowhereMan on March 25, 2022, 06:53:16 PM
Would be tragic to have one of those and figure out the battery was dead when you need it

There are a couple of different tests you can do, and I suspect they are extremely conservative wrt battery life. My battery was actually supposed to be changed last September, and it passed the test just before I changed it.
Title: Re: EPIRB
Post by: lucky13 on March 25, 2022, 11:53:16 PM
Yeah, probably time for a battery change!!  Lol.  $85 for just the batteries!!!!
Wow, 85 bucks for 8 cr123a? Seems like a high mark up. Not trying to rub it in, but you can get 10 exactly the same Sanyo cr123a batteries for $13.
https://www.ebay.com/itm/334257127756?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20200818142055%26meid%3D415779145ec940238f742620ee909658%26pid%3D101113%26rk%3D2%26rkt%3D12%26sd%3D400658140179%26itm%3D334257127756%26pmt%3D0%26noa%3D1%26pg%3D2563228%26algv%3DDefaultOrganicWeb%26brand%3DSANYO&_trksid=p2563228.c101113.m2108
Title: Re: EPIRB
Post by: johnz on March 26, 2022, 06:39:19 PM
Yeah, probably time for a battery change!!  Lol.  $85 for just the batteries!!!!
Wow, 85 bucks for 8 cr123a? Seems like a high mark up. Not trying to rub it in, but you can get 10 exactly the same Sanyo cr123a batteries for $13.
https://www.ebay.com/itm/334257127756?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20200818142055%26meid%3D415779145ec940238f742620ee909658%26pid%3D101113%26rk%3D2%26rkt%3D12%26sd%3D400658140179%26itm%3D334257127756%26pmt%3D0%26noa%3D1%26pg%3D2563228%26algv%3DDefaultOrganicWeb%26brand%3DSANYO&_trksid=p2563228.c101113.m2108
Great, next time I'll message you and have you solder them all together adding diodes to each one. Thanks!

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Title: Re: EPIRB
Post by: johnz on March 26, 2022, 07:31:58 PM
Why do you have an EPIRB?

It's a PLB, which is the hand-held equivalent of what you're probably thinking of. IMHO, it's a good thing to consider carrying when kayak fishing. Hopefully, you'll never need to use, but if you do, it could be a life-saver. I think this is the one I have:

https://www.acrartex.com/products/resqlink-400/
I'll simplify that further. I'm married, have two kids, and ocean kayak fishing is inherently dangerous. An epirb is super cheap insurance.

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Title: Re: EPIRB
Post by: lucky13 on March 26, 2022, 08:29:57 PM
Great, next time I'll message you and have you solder them all together adding diodes to each one. Thanks!
No problem. Do they even have a diode in the pack? If so, strip off the old batteries and save whatever else was in the old pack. It would make building the new pack easier.
Title: Re: EPIRB
Post by: johnz on March 27, 2022, 08:58:11 AM
Given the way this thread has evolved, I thought I'd add the obvious at this point about why I chose to buy replacement batteries already assembled for my model and not McGuiver some hack (even tho that's generally my approach) myself.  I sure didn't feel like spending $150 for ACR to do the job, but having my own solder job on battery connections lead to my own death was not appealing either.  This is an epirb after all, not a fish finder or my flashlight.   There's a ton of articles out there written about (and describing the issues) of doing DYI on epirb/plb battery replacement, I'm sure you've probably read some of those but here's one for an example and why I decided saving a couple dollars was not worth losing my life when I found that my epirb didn't work when I really needed it. 

https://www.advrider.com/f/threads/acr-resqlink-plb-dissassembly-aka-the-10-battery-replacement.749245/

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Title: Re: EPIRB
Post by: dtizz on March 27, 2022, 10:09:44 AM
Love the DIY too, but when my ResQLink hits another five years (soon), I'm sure I'll be mailing it in for their battery replacement.
Title: Re: EPIRB
Post by: NowhereMan on March 27, 2022, 11:29:51 AM
For my model, it’s just $40 (total) for the battery pack, so I can’t see trying to solder one together myself, even if my soldering skills were much better. But having taken it apart and replaced the battery, I don’t have any problem with the replacement step. If you feel it’s safer to send it in for battery replacement, of course, I don’t have any problem with that either, as that was also my first reaction.

I hadn’t considered the limit of 12 GPS tests per battery pack. Does anybody know if that’s automatically reset when the battery pack is disconnected?
Title: Re: EPIRB
Post by: lucky13 on March 27, 2022, 04:51:32 PM
Sorry I never meant to stir the pot. Just wanted to point out the savings. I understand some people just don't want to bother with learning about batteries, and choose to entrust manufacturers or 3rd party vendors. There's nothing wrong with that if it gives you a peace of mind. With that said, there is nothing in those packs that make them more safe. If they are using off-the-shelf batteries, and if you're using same identical batteries, there is no way that their packs are more safe than yours. If you follow the proper way to construct battery packs, you can make your own pack more safe than oem or 3rd party packs because you are in control in every step of the construction. You know what batteries goes into your pack. You know the quality of the construction. But of course you have to test the battery you use.

One very important thing I must point out. The word "solder" is used several times. It's also mentioned in the posts referenced. Please know this, NEVER solder batteries. You always spot-weld batteries by joining them with nickel strips. If you were to make a proper solder joint, it would put too much heat on the battery. It cooks the compound inside, increases the internal resistance, and it can melt the protective wrap. It shortens the lifespan of the batteries and can make them unsafe. Nowadays, spot-welders for making battery packs, as well as other necessary materials, are widely available and are inexpensive. You can pick up a low end spot-welder for under $50.

"I hadn’t considered the limit of 12 GPS tests per battery pack."
I wonder how they can impose that? Is it restricted by the device, or is it imposed by the account your device is registered to? I have no idea how an EPIRB operates.
Title: Re: EPIRB
Post by: NowhereMan on March 27, 2022, 05:20:59 PM
"I hadn’t considered the limit of 12 GPS tests per battery pack."
I wonder how they can impose that? Is it restricted by the device, or is it imposed by the account your device is registered to? I have no idea how an EPIRB operates.

From my perspective, the more pot stirring the better...

It's a good question as to how the 12 tests is determined. On the PLB website, it says

"An ACR ResQLink+ beacon has enough excess battery life to perform 12 GPS self tests over the 5 year life of the battery"

That makes me think that nobody is keeping track, and it's only based on available battery life.
Title: Re: EPIRB
Post by: Otis on March 28, 2022, 09:40:38 PM
Why do you have an EPIRB?

It's a PLB, which is the hand-held equivalent of what you're probably thinking of. IMHO, it's a good thing to consider carrying when kayak fishing. Hopefully, you'll never need to use, but if you do, it could be a life-saver. I think this is the one I have:

https://www.acrartex.com/products/resqlink-400/
I'll simplify that further. I'm married, have two kids, and ocean kayak fishing is inherently dangerous. An epirb is super cheap insurance.

Sent from my LM-G850 using Tapatalk

I know what EPIRB is … and I know what it isn’t. My question was “WHY” do you have and EPIRB?

Several years ago when I was studying marine navigation I took it upon myself to calculate the absolute minimum rescue time using EPIRB for a vessel off the CA coast … just under 2-hrs in a perfect world where everything goes right and all data is complete, and handed-off first pass from EPIRB to sat and then first pass from sat to sat, and then first pass from sat to ComCen, ComCen verifying authenticity of a rescue and handing off to SF CG, and using the SF CG average on-site time of 20-mins from notification. 2-hours. :smt103

EPIRB was designed for transoceanic vessels with capabilities for crew to survive for days while awaiting rescue. Think container ships with ‘pods’ for the crew to live in while waiting. There is nothing “instant” about EPIRB, it is not like dialing 9-1-1 and someone immediately answers.

You have an option. It is expensive. Keeping in mind the average time from when the SF CG receives a ‘distress’ notice to being on-site is 20-mins, and all of the CA coast is CG VHF radio monitored from shore to many miles out, VHF may be a better option for ‘near shore’ rescue needs. Specifically, VHF with DSC – digital select calling. DSC can function as a distress call AND beacon for the CG and any other vessel that receives DSC transmissions.

To keep it simple, hit the red button on your handheld VHF radio with DSC and within 20-mins the CG is there … if everything goes well. DSC distress is sent instantly (EPIRB data is NOT sent instantly) and includes GPS location data and time stamp. (Time stamp is important.) The CG gets that data immediately. Any boats in the area receiving DSC will immediate get the distress and may arrive b/4 the CG.

Hey, if you are kayaking out 25 or 50 miles off-shore in a submersion survival suit, an EPIRB is the way to go. But, realistically, most of us kayaking near shore in something comfy are going to have problems surviving 2-hrs in the No CA waters. From what I understand about EPIRB technology and how it works, I think of EPIRB on a near shore kayak not so much as being about ‘rescue’ as it is about ‘recovery’ … the recovery of a body. :smt086

I like ICOM products. There are others, do your research for VHF with DSC:

https://www.icomamerica.com/en/products/marine/handhelds/m94d/default.aspx

Did I mention it wasn’t going to be cheap?  :smt003

Do it right so that if the shit ever really does hits the fan you DO get back to your wife and your kids.  :thumright:

Title: Re: EPIRB
Post by: lucky13 on March 28, 2022, 10:18:26 PM
That's great info Otis  :thumleft:
Title: Re: EPIRB
Post by: NowhereMan on March 29, 2022, 02:53:54 PM
Several years ago when I was studying marine navigation I took it upon myself to calculate the absolute minimum rescue time using EPIRB for a vessel off the CA coast … just under 2-hrs ...

I don't believe that is correct. As I understand it, there is an older version of EPIRB that uses satellites to determine location, and that can take up to 2 hours to get a fix on the location. However, modern EPIRBs (and PLBs) are GPS enabled, so they instantaneously provide location information. Of course, how long it takes for someone to actually arrive on scene will depend on how quickly that info gets to the Coast Guard and how close they are to you.
Title: Re: EPIRB
Post by: tedski on March 29, 2022, 03:42:12 PM
Several years ago when I was studying marine navigation I took it upon myself to calculate the absolute minimum rescue time using EPIRB for a vessel off the CA coast … just under 2-hrs ...

I don't believe that is correct. As I understand it, there is an older version of EPIRB that uses satellites to determine location, and that can take up to 2 hours to get a fix on the location. However, modern EPIRBs (and PLBs) are GPS enabled, so they instantaneously provide location information. Of course, how long it takes for someone to actually arrive on scene will depend on how quickly that info gets to the Coast Guard and how close they are to you.

In addition, a 406 mHz EPIRB will also transmit a homing signal on 121.5 mHz for CG air and surface units to home in on your exact position once in the area.  The broader location early on in activation is fine because of this. 

Quote
ComCen verifying authenticity of a rescue

This isn't a thing that happens.  Every EPIRB activation is responded to.  I can't tell you how many evenings I spent walking up and down docks in marinas with the hot dog cooker trying to locate the accidentally activated EPIRB on some pleasure craft.

Quote
your handheld VHF radio with DSC and within 20-mins the CG is there

The USCG doesn't have magically faster boats just because DSC was activated versus EPIRB.  There is no game of telephone where people are handing off EPIRB activation messages.  The average 2 hour response you mention (which... citation needed) is due to the speed of vessels, the area covered by a single USCG station, etc.  But, it's a bit moot since the USCG readily activates the nearest resource, USCG or not.  For example, activating the HMB Harbor Patrol or the Coyote Point Harbor Master or the Alameda County Fire Marine Unit.

Quote
My question was “WHY” do you have and EPIRB?

Because I've been the rescuer and I've personally experienced the value of a PLB/EPIRB worn on someone's PFD and I've seen first hand how it resulted in a much faster rescue in nearshore conditions.
Title: Re: EPIRB
Post by: christianbrat on March 29, 2022, 03:55:03 PM
an epirb and plnb are two different things.. i think that's something that needs to be addressed as well... none of these guys are carrying epirbs on their yaks.  my epirb, on my boat, is the size of a big Gatorade bottle... nobody (yes big assumption) has this on their yak..
Title: Re: EPIRB
Post by: Otis on March 29, 2022, 06:08:56 PM
Several years ago when I was studying marine navigation I took it upon myself to calculate the absolute minimum rescue time using EPIRB for a vessel off the CA coast … just under 2-hrs ...

I don't believe that is correct. As I understand it, there is an older version of EPIRB that uses satellites to determine location, and that can take up to 2 hours to get a fix on the location. However, modern EPIRBs (and PLBs) are GPS enabled, so they instantaneously provide location information. Of course, how long it takes for someone to actually arrive on scene will depend on how quickly that info gets to the Coast Guard and how close they are to you.

There is a hand-off delay at every stage – beginning with EPIRB activation and contact with the first sat system. Then a delay waiting for sat1 to pass by sat2 to hand off the data. Then a delay waiting for sat2 to pass by and hand off the data to the central command office. Then a delay with the central office verifying the authenticity of the EPIRB and a rescue need. Only when all of that happens is the ‘rescue’ handed off to SF CG. Then the time for CG to be on-sight. All of those delays add up to about 2-hrs … if things go well. Longer if they don’t.

It is possible you could spend upwards of 40-mins waiting for just the 1st sat (polar orbiting) to pass by. (Note: it is from my memory that sat passes by about every 40-mins so that delay time could be wrong.)

When an EPIRB/PLB activates it immediate send the unit ID. Doesn’t mean there is a sat there to receive it, but it is sent. Then it starts looking for sats to get a GPS location. They don't have constant GPS info as it would run down the batts. Subsequent broadcast will include GPS data with the unit ID. If GPS  is not available the Central office can extrapolate location by triangulating based on the start and stop contact times with the polar orbiting sat. The Cen office knows where the sats is when it picked up an active EPIRB. My understanding was it takes multiple passes from the sat to narrow down where the EPIRB is. With or without GPS data, the party starts when the first sat receives an EPIRB ID.

I believe it was something like less than 10-mins after getting a rescue notification the SF CG is airborne. They head out toward the sea with no known location to look at. As they go they start receiving the location data and make course corrections. There is no assumption the EPIRB is with those needing help. With an EPIRB they do not go to the location of activation. Central office estimates drift based on current, winds, and sea condition and sends updated locations to the rescue crew in the air. Depending on the time since EPIRB activation they start looking for you possibly miles from where the EPIRB was activated. If you are alive they can find you pretty quickly with thermo-imaging.
Title: Re: EPIRB
Post by: Otis on March 29, 2022, 06:12:54 PM
an epirb and plnb are two different things.. i think that's something that needs to be addressed as well... none of these guys are carrying epirbs on their yaks.  my epirb, on my boat, is the size of a big Gatorade bottle... nobody (yes big assumption) has this on their yak..

They both work the same way, same freq, same sat systems, they are both basically the same things … like having a mama version and a baby version.  :smt003

The diff is PLBs are for people, not boats, EPIRBs are for boats, not people. The size diff represents battery capacity and functions (e.g. strobe light, other stuff) required for an EPIRB to be used on a boat. PLBs are not “certified” for use on a boat, but most certainly can be used as such. PLBs are not required to float, lose that and all you have is a prayer your unit’s ID and GPS data was handed off to the sat before it sunk … presuming you got it activated before losing it. There is no confirmation the sat received the data.

Title: Re: EPIRB
Post by: christianbrat on March 29, 2022, 06:17:06 PM
yes, the big disctinction is that my epirb has my vessels info on it, my plb has MY info. not sure you can reg an epirb without a registered craft
Title: Re: EPIRB
Post by: NowhereMan on March 30, 2022, 07:35:29 AM
Several years ago when I was studying marine navigation I took it upon myself to calculate the absolute minimum rescue time using EPIRB for a vessel off the CA coast … just under 2-hrs ...

I don't believe that is correct. As I understand it, there is an older version of EPIRB that uses satellites to determine location, and that can take up to 2 hours to get a fix on the location. However, modern EPIRBs (and PLBs) are GPS enabled, so they instantaneously provide location information. Of course, how long it takes for someone to actually arrive on scene will depend on how quickly that info gets to the Coast Guard and how close they are to you.

There is a hand-off delay at every stage – ...


I think you are confusing non-GPS enabled with GPS-enabled devices. Here is a pretty good discussion (see, in particular, the section titled "Self-Contained GPS"):

https://boatwatch.org/safety-at-sea/new-gps-epirbs-and-plbs-explained/

The first few paragraphs are also relevant, where it talks about the importance of proper registration.
Title: Re: EPIRB
Post by: Otis on March 30, 2022, 05:50:49 PM
Several years ago when I was studying marine navigation I took it upon myself to calculate the absolute minimum rescue time using EPIRB for a vessel off the CA coast … just under 2-hrs ...

I don't believe that is correct. As I understand it, there is an older version of EPIRB that uses satellites to determine location, and that can take up to 2 hours to get a fix on the location. However, modern EPIRBs (and PLBs) are GPS enabled, so they instantaneously provide location information. Of course, how long it takes for someone to actually arrive on scene will depend on how quickly that info gets to the Coast Guard and how close they are to you.

There is a hand-off delay at every stage – ...


I think you are confusing non-GPS enabled with GPS-enabled devices. Here is a pretty good discussion (see, in particular, the section titled "Self-Contained GPS"):

https://boatwatch.org/safety-at-sea/new-gps-epirbs-and-plbs-explained/

The first few paragraphs are also relevant, where it talks about the importance of proper registration.

Thanks for the link, it is a good read, tho it has some errors. I don't think GPS has anything to do with how the system works but GPS location is data passed along with the EPIRB ID.

For an EPIRB signal to be picked up “instantly” there needs to be a Geo-stationary (“hovering”) sat just sitting there. The system did not work that way before, I doubt it does today, and the article eludes to that when talking about doing calculations when there is no GPS data – the article contradicts itself.

When I did my research, EPIRB system including TWO separate sat systems. The first sat system is polar orbiting, circling the Earth from top to bottom. This sat system picks up the 406 mhz frequency that is the EPIRB ID and GPS data, if any. I also understood without GPS data available, the polar orbiting sat could be used to triangulate a location but it would take multiple passes of sats to do that. From the article:

“Without GPS, polar-orbiting satellites compute an EPIRB’s position as they pass overhead, but this often takes 90 minutes and could exceed three hours …”

NOTE: there was no Geo-stationary sat system waiting for activated EPIRBs - they are polar orbiting sats and that means there is likely going to be a delay from the start. (Realistically, if the sat is passing overhead when an EPIRB is activated, there is no delay – if the sat has just passed by, it is about a 40-min delay until it returns.) The whole system has a delay at each step. That “delay” time will increase as ‘the rescue’ propagates through the system.

There is a delay (1st Delay) while waiting for the polar orbiting sat to come up from the South pole and pass by on it way to the North pole. That is when the EPIRB’s data enters the system.

Total time to rescue, so far = 1st Delay (getting the signal to the first sat – anything from 0 to 40 mins)

The second delay (2nd Delay) comes waiting for that polar orbiting sat to go up and over the North pole, and back down the other side, headed toward the South pole. On its way down the backside of the Earth, it passes over the equator. The second sat system is orbiting adjacent to the 1st sat system, going around the equator. As the two sats pass each other, the first sat heading for the South pole, hands off the EPIRB’s data to the second sat whipping along the equator.

Total time to rescue, so far = 1st Delay + 2nd Delay (handing off the signal from first sat to second sat)

The 3rd Delay is waiting for the second sat to complete enough of an orbit to pass by the command center, located in the US, and hand off the EPIRB’s data.

Total time to rescue, so far = 1st Delay + 2nd Delay + 3rd Delay (hand off the signal from second sat to command center)

There is an authentication and verification delay that is necessary and unavoidable (4th Delay) performed by the command center.

“… staff of that RCC attempts to verify the signal is intentional — 96 percent are false alarms.”

Total time to rescue, so far = 1st Delay + 2nd Delay + 3rd Delay + 4th Delay (command center authentication)

After the command center authenticates the need for a rescue, they hand off the info to SF CG. It takes time for the CG to get on-site. (5th Delay).

Total time to rescue = 1st Delay + 2nd Delay + 3rd Delay + 4th Delay + 5th Delay (time to get on-site)

When I did my calculations, years ago, the total of all of those delays came to just under 2-hrs. The lion’s share of the total delay was with 1st, 2nd, and 3rd Delays – waiting on sats to get to where they need to be. Maybe things have changed, maybe the system somehow works quicker now?!? Maybe there are more sats? Maybe the sats are moving faster? Maybe there is an entirely system in place?

To compare: VHF with DSC involves pushing the red button that sends a digital VHF distress signal (with GPS data) the SF CG is always monitoring. Total delay to start rescue is 1-millisecond, the whole rescue is starting at: … time for the CG to get on-site (5th Delay). The 5th Delay is the average time from notification to on-site for a rescue which I believe is 20-mins for SF CG.


Title: Re: EPIRB
Post by: johnz on May 02, 2022, 01:23:36 PM
yes, the big disctinction is that my epirb has my vessels info on it, my plb has MY info. not sure you can reg an epirb without a registered craft
"PLB" gets used as a general term to describe a wide range of beacons with varying capability, not a good descriptor in my opinion. Within the ACR brand, the differences between their "PLB" vs EPIRB is really only in size (tiny to be worn on PFD, vs mounted on your vessel) and how they get deployed (manual vs. automatic on water contact).  Once activated, the downstream system is the same for notification of coast guard, triage through 2 phone contacts, and then deployment of rescue resources. There is ZERO yearly subscription for ACR, and it is not meant nor designed to be a casual check-in system. I've had a SPOT in the past, would never do that again for boating.

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Title: Re: EPIRB
Post by: christianbrat on May 02, 2022, 02:42:56 PM
yes, the big disctinction is that my epirb has my vessels info on it, my plb has MY info. not sure you can reg an epirb without a registered craft
"PLB" gets used as a general term to describe a wide range of beacons with varying capability, not a good descriptor in my opinion. Within the ACR brand, the differences between their "PLB" vs EPIRB is really only in size (tiny to be worn on PFD, vs mounted on your vessel) and how they get deployed (manual vs. automatic on water contact).  Once activated, the downstream system is the same for notification of coast guard, triage through 2 phone contacts, and then deployment of rescue resources. There is ZERO yearly subscription for ACR, and it is not meant nor designed to be a casual check-in system. I've had a SPOT in the past, would never do that again for boating.

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Please take a look at the EPIRB and PLB registration forms. You cannot register your EPIRB without a vessel.   Neither an EPIRB or a PLB are communication devices like spot, or ACR Bivy, or Garmin inReach, but unless your kayak is a registered boat, you're not carrying an EPIRB.
It's worth knowing their purposes and how they are registered and operated, and it will help clear up some of the confusion about their difference...

https://beaconregistration.noaa.gov/RGDB/resources/forms/epirb.pdf;jsessionid=VVEfnU3e-NC8zJ3SbzFjSbhQNMorXUYW3TKzfzxb.jboss-ops-one
https://beaconregistration.noaa.gov/RGDB/resources/forms/plb.pdf;jsessionid=VVEfnU3e-NC8zJ3SbzFjSbhQNMorXUYW3TKzfzxb.jboss-ops-one
Title: Re: EPIRB
Post by: johnz on May 04, 2022, 08:15:46 PM
Not sure why that would make any difference. My registration contains a section for me to describe my vessel, which I always update when I need to.  The key point is that for ACR, the process once "activated" is identical for their PLB or EPIRB.  Given the fact that an EPIRB is not something sized for a kayak, I'm not sure what the point of this discussion is.

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Title: Re: EPIRB
Post by: christianbrat on May 04, 2022, 10:21:46 PM
Not sure why that would make any difference. My registration contains a section for me to describe my vessel, which I always update when I need to.  The key point is that for ACR, the process once "activated" is identical for their PLB or EPIRB.  Given the fact that an EPIRB is not something sized for a kayak, I'm not sure what the point of this discussion is.

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mostly that the thread is titled EPRIB and I was attempting to communicate that maybe we should refer to them as PLBs as that's what we carry, not EPIRBs as EPIRBs are registered to a boat. The horse is beat to death, but for those who care beyond "at the end of the day the same person gets a call" or who may get a boat with an actual EPRIB later on, it's worth recognizing their distinctions.  im all about calling a fishing rod a pole, and a fishing line, a string or wire, but safety gear is worth understanding well.
Title: Re: EPIRB
Post by: Otis on May 05, 2022, 09:49:43 AM

... I was attempting to communicate that maybe we should refer to them as PLBs as that's what we carry, not EPIRBs ...

100% in agreement with you. EPIRBs and PLBs are NOT the same thing and their application is not directly interchangeable. Sadly, I think most folks may not realize that, especially since they refer to the two as if they are the same thing. Nothing could be further from the truth.

Yes, an EPIRB and a PLB use the same satellite and command center system to do the same thing, but how someone gets an EPIRB vs a PLB to work for them is vastly different. Their target applications are different. I am firmly convinced most folks on the water with a PLB do not understand the technology and so they do not know what is required to get their PLB to work for them.
Title: Re: EPIRB
Post by: johnz on May 08, 2022, 02:30:45 PM

... I was attempting to communicate that maybe we should refer to them as PLBs as that's what we carry, not EPIRBs ...

100% in agreement with you. EPIRBs and PLBs are NOT the same thing and their application is not directly interchangeable. Sadly, I think most folks may not realize that, especially since they refer to the two as if they are the same thing. Nothing could be further from the truth.

Yes, an EPIRB and a PLB use the same satellite and command center system to do the same thing, but how someone gets an EPIRB vs a PLB to work for them is vastly different. Their target applications are different. I am firmly convinced most folks on the water with a PLB do not understand the technology and so they do not know what is required to get their PLB to work for them.
Can you elucidate your last sentence there?

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Title: Re: EPIRB
Post by: Salmonella on August 19, 2022, 11:27:03 PM
As a ‘Safety First’ principle, I take my PLB pretty much everywhere. It is essential safety equipment for me whether I’m in the middle of the desert, ocean or sky. It’s a last ditch tool that could save your life like these 330 people last year :

https://www.commerce.gov/news/blog/2022/02/noaa-satellites-helped-save-330-lives-2021 (https://www.commerce.gov/news/blog/2022/02/noaa-satellites-helped-save-330-lives-2021)


I’m surprised it’s not on the list. There is a lot of water out there even in the Monterey Bay to search for a floater in a wetsuit. Thermal imaging isn’t going to pick up much if you are wearing a wetsuit, booties and a hoodie.
Title: Re: EPIRB
Post by: MavYak on August 20, 2022, 07:47:59 PM
being in my 60's, I carry my ACR-plb in the yak at all times.
Even when out hunting, though I have a Garmin InReach for that purpose. ACR-plb stays in vehicle, IR on my person.

just gives me peace of mind or as someone mentioned earlier....find my body at least.
Title: Re: EPIRB
Post by: SpeedyStein on August 21, 2022, 12:20:38 PM
I think the most important consideration is that this should be the last piece of safety gear, after PFD, immersion gear, signalling devices, radio, and self rescue training. Once those other boxes are checked, then consider the need for an EPIRB/PLB.

Being prepared for disaster is best.  A radio is the best way to call for help, and the keeping yourself alive until help can get on scene is critical. The CG has an excellent radio network all along the coast, and they are always listening. Often they will ask if you have cell service, because they can also ping you cell phone to get your location. If you call 911, they can get your location through the EMS system too. 

Not that an EPIRB / PLB is a bad idea, but I would put my trust in other comms devices first.
Title: Re: EPIRB
Post by: christianbrat on August 21, 2022, 12:24:34 PM
the idea of the PLB as described to me by others is so they can at least find your body, or in our case to help the understand where the body may be moving to with current and weather.  It can take hours to mobilize a team responce to a plb sometimes. Agreed it is a backup option.  leave a float plan (a note on the care window is not a bad plan either) and have a radio
Title: Re: EPIRB
Post by: SpeedyStein on August 21, 2022, 01:35:50 PM
the idea of the PLB as described to me by others is so they can at least find your body, or in our case to help the understand where the body may be moving to with current and weather.  It can take hours to mobilize a team responce to a plb sometimes. Agreed it is a backup option.  leave a float plan (a note on the care window is not a bad plan either) and have a radio

Float plan is a great idea - I always text my wife day of with where I launch, where I plan to fish, and how long I plan to be out. 

Title: Re: EPIRB
Post by: Salmonella on August 21, 2022, 04:53:41 PM
I think the most important consideration is that this should be the last piece of safety gear, after PFD, immersion gear, signalling devices, radio, and self rescue training. Once those other boxes are checked, then consider the need for an EPIRB/PLB.

Being prepared for disaster is best.  A radio is the best way to call for help, and the keeping yourself alive until help can get on scene is critical. The CG has an excellent radio network all along the coast, and they are always listening. Often they will ask if you have cell service, because they can also ping you cell phone to get your location. If you call 911, they can get your location through the EMS system too. 

Not that an EPIRB / PLB is a bad idea, but I would put my trust in other comms devices first.

If you set off one of these, you’re going to court to determine if you get a bill for $250k or not regardless. Last ditch tool meaning your near death. Heart attack, drowning, whatever.
Title: Re: EPIRB
Post by: christianbrat on August 21, 2022, 06:06:39 PM
I think the most important consideration is that this should be the last piece of safety gear, after PFD, immersion gear, signalling devices, radio, and self rescue training. Once those other boxes are checked, then consider the need for an EPIRB/PLB.

Being prepared for disaster is best.  A radio is the best way to call for help, and the keeping yourself alive until help can get on scene is critical. The CG has an excellent radio network all along the coast, and they are always listening. Often they will ask if you have cell service, because they can also ping you cell phone to get your location. If you call 911, they can get your location through the EMS system too. 

Not that an EPIRB / PLB is a bad idea, but I would put my trust in other comms devices first.

If you set off one of these, you’re going to court to determine if you get a bill for $250k or not regardless. Last ditch tool meaning your near death. Heart attack, drowning, whatever.

speaking from experience, they call you and your first emergency contact to confirm an issue first, then mobilize a response.  a friend of mine accidentally set his off while putting his pfd into the boat seat box. He received a call from his wife and the CG a few minutes later, opened the box, and turned the unit off.. that was the end of the story.
Title: Re: EPIRB
Post by: NowhereMan on August 21, 2022, 07:19:51 PM
If you set off one of these, you’re going to court to determine if you get a bill for $250k or not regardless. Last ditch tool meaning your near death. Heart attack, drowning, whatever.

I don't think so. For example, see this article:

https://www.thelog.com/ask-the-attorney/does-the-coast-guard-charge-for-rescues-or-assistance/

IMHO, this thread has devolved into one of the more dubious I've seen on NCKA. My suggestion is to read post #23 by tedski, who is former Coast Guard, so he knows how this actually works in practice, and ignore the rest.

I'd say that the bottom line is, if you can afford a PLB, get one. And, if you find yourself in a life-threatening emergency, don't hesitate to use it because of some ridiculous concern that you'll be charged hundreds of thousands of dollars, or that it'll only help them find your dead body, or whatever...
Title: Re: EPIRB
Post by: JMcKroid on December 03, 2022, 07:28:48 AM
I had an unrecoverable flip 2 miles offshore where I lost my cell phone and VHF radio.  My only means of summing help was the PLB on my lifejacket.  About 20 minutes after activation, the USCG helo flew by but did not stop (best to have a signal mirror to help draw attention, I did not).  Thankfully, my fishfinder battery box stayed waterproof, and the GPS indicated that I was getting set in towards the beach(this gave me peace of mind).   The Hobie PA has foam inside of it so that it will float regardless of being flooded.  I stayed with it and drifted to the beach.  Unrescued by the PLB, even though it remained activated for about 3 hours.  I never heard anything from the coast guard regarding a rescue fee.   Wife was notified, and local police were on the lookout and did help me recover my kayak at the beach.

My ACR PLB-375 ResQlink+ battery needed replacing.  I was informed that if I wrote a testimonial about how the PLB helped save my life, ACR would replace the battery for free. I paid $150 to have ACR service the battery.  ACR headquarters is in my hometown(Fort Lauderdale), so I was able to drop it off and pick it up(No longer the case since COVID).  Five years passed, and this time, I paid $40 for a new battery and gasket and replaced it myself.   

I recently met a USCG officer that does education seminars about PLBs.  He told me that sometimes the antenna tracking systems off Miami are down and that the easiest PLBs for the choppers to pinpoint are the Garmin In touch.  That might be because they track multiple GPS systems which is bound to add to accuracy.  The Garmins require a subscription which is why I will stick with my ACR.   Some of the newer PLBs have 7 yr batteries.

IMHO, a PLB is the last resort in my lineup of safety redundancy.  Had I been offshore longer, it probably would have saved my life. 
Title: Re: EPIRB
Post by: NowhereMan on December 03, 2022, 12:35:23 PM
I had an unrecoverable flip 2 miles offshore where I lost my cell phone and VHF radio.  My only means of summing help was the PLB on my lifejacket.  About 20 minutes after activation, the USCG helo flew by but did not stop (best to have a signal mirror to help draw attention, I did not).  Thankfully, my fishfinder battery box stayed waterproof, and the GPS indicated that I was getting set in towards the beach(this gave me peace of mind).   The Hobie PA has foam inside of it so that it will float regardless of being flooded.  I stayed with it and drifted to the beach.  Unrescued by the PLB, even though it remained activated for about 3 hours.

That sounds like a major fail. So, I don’t understand why you would continue to rely on a PLB.
Title: Re: EPIRB
Post by: JMcKroid on December 03, 2022, 03:30:26 PM

[/quote]

That sounds like a major fail. So, I don’t understand why you would continue to rely on a PLB.
[/quote]

If that one incident was to determine the value of a PLB, I can see why you might think that.  Having spent 3 decades as a Deck and sometimes also the Radio or Medical Officer on Merchant Ships, I have some hands-on experience with marine safety and rescue equipment.  Between Smokes, Flares, SARTS, VHF DSC AIS Radio, and EPIRBS, If the ship is going down, I want to be in the lifeboat that is carrying the EPIRB.  They have saved thousands of lives and will continue to do so.  A PLB is a miniaturized version of the EPIRB.
Title: Re: EPIRB
Post by: SteveS doesn't kayak anymore on December 04, 2022, 04:21:17 AM
Damn..rockfish isn't even CLOSED and there's a thread like this?.
Title: Re: EPIRB
Post by: polepole on December 04, 2022, 11:03:42 AM
Damn..rockfish isn't even CLOSED and there's a thread like this?.

This thread started last winter!  Add in a few posts from well intentioned people that get caught in the minutiae of things, and a healthy dose of BrOtis, who has since been banned.

-Allen
Title: Re: EPIRB
Post by: Bulldog---Alex on December 04, 2022, 11:16:38 AM
Catch a case of brotis-itis, it's worse than Corona.
Title: Re: EPIRB
Post by: NowhereMan on December 04, 2022, 03:35:06 PM


That sounds like a major fail. So, I don’t understand why you would continue to rely on a PLB.
[/quote]

If that one incident was to determine the value of a PLB, I can see why you might think that.  Having spent 3 decades as a Deck and sometimes also the Radio or Medical Officer on Merchant Ships, I have some hands-on experience with marine safety and rescue equipment.  Between Smokes, Flares, SARTS, VHF DSC AIS Radio, and EPIRBS, If the ship is going down, I want to be in the lifeboat that is carrying the EPIRB.  They have saved thousands of lives and will continue to do so.  A PLB is a miniaturized version of the EPIRB.
[/quote]

OK, but I'm still curious as to what went wrong in the case that you describe. It's hard for me to imagine that authorities were notified, yet the Coast Guard wasn't interested in finding you for 3 hours. Something doesn't add up...
Title: Re: EPIRB
Post by: JMcKroid on December 06, 2022, 08:15:55 AM


That sounds like a major fail. So, I don’t understand why you would continue to rely on a PLB.

If that one incident was to determine the value of a PLB, I can see why you might think that.  Having spent 3 decades as a Deck and sometimes also the Radio or Medical Officer on Merchant Ships, I have some hands-on experience with marine safety and rescue equipment.  Between Smokes, Flares, SARTS, VHF DSC AIS Radio, and EPIRBS, If the ship is going down, I want to be in the lifeboat that is carrying the EPIRB.  They have saved thousands of lives and will continue to do so.  A PLB is a miniaturized version of the EPIRB.
[/quote]

OK, but I'm still curious as to what went wrong in the case that you describe. It's hard for me to imagine that authorities were notified, yet the Coast Guard wasn't interested in finding you for 3 hours. Something doesn't add up...
[/quote]

As described in my initial post, USCG dispatched a helo that flew past me about 20 minutes after I activated my PLB.  What went wrong is that I failed to attract the attention of the Helo when it flew past and it failed to pinpoint my PLB on the initial pass.  When I beached the kayak, the first thing the local police requested is that I deactivate the PLB.   Once the police helped me get my kayak clear of the beach, we left it in the backyard of a huge private residence.  I then went to the station to dry off and wait for my wife(who had been called and visited by law enforcement when the PLB was activated) to bring the spare keys to my truck.  On the way to the Police station, I could see a local news Helo over the ocean -- glad I avoided that report.  At the station, I learned that the CG Helo had located a similar kayak in the general area which informed them that it was OK.   
Title: Re: EPIRB
Post by: NowhereMan on December 16, 2022, 05:15:05 PM
... At the station, I learned that the CG Helo had located a similar kayak in the general area which informed them that it was OK.   

I'm not trying to be a dick (some of us don't have to try), but it still doesn't seem right. If the Coast Guard finds a boat, I'd think that they'd want to be 100% certain that it was the right boat. It seems to me if nobody on the boat had activated a PLB, it'd be pretty obvious that they need to continue the search...
Title: Re: EPIRB
Post by: Mark L on December 16, 2022, 07:44:48 PM
... At the station, I learned that the CG Helo had located a similar kayak in the general area which informed them that it was OK.   

I'm not trying to be a dick (some of us don't have to try), but it still doesn't seem right. If the Coast Guard finds a boat, I'd think that they'd want to be 100% certain that it was the right boat. It seems to me if nobody on the boat had activated a PLB, it'd be pretty obvious that they need to continue the search...

I agree, that it was a failure by both the Coastguard, and JMcKroid. The Coastguard should of made sure that the kayak they found was the one that deployed the beacon, and JMcKroid should of had a light strobe, mirror, or flares to signal with. The harbor master at HMB requires kayakers to carry flares so I have 3 in my pfd, plus a mirror. We should all carry signaling devices.

And yes I carry a EPIRB.
Title: Re: EPIRB
Post by: JMcKroid on December 16, 2022, 10:49:32 PM
... At the station, I learned that the CG Helo had located a similar kayak in the general area which informed them that it was OK.   

I'm not trying to be a dick (some of us don't have to try), but it still doesn't seem right. If the Coast Guard finds a boat, I'd think that they'd want to be 100% certain that it was the right boat. It seems to me if nobody on the boat had activated a PLB, it'd be pretty obvious that they need to continue the search...

Agree, It did not seem right, but that was my point of view.  Perhaps the USCG was unable to confirm by helo, and a boat was in the process of being dispatched to confirm?  I never did a follow-up with the USCG to hear their version of the search.  As mentioned earlier, the first thing the Police had me do when they met me on the beach was secure the PLB.  That to me indicates that the search was still in progress and that they wanted the beacon secured to end search efforts. 
Title: Re: EPIRB
Post by: JMcKroid on December 16, 2022, 11:20:25 PM
... At the station, I learned that the CG Helo had located a similar kayak in the general area which informed them that it was OK.   

I'm not trying to be a dick (some of us don't have to try), but it still doesn't seem right. If the Coast Guard finds a boat, I'd think that they'd want to be 100% certain that it was the right boat. It seems to me if nobody on the boat had activated a PLB, it'd be pretty obvious that they need to continue the search...

I agree, that it was a failure by both the Coastguard, and JMcKroid. The Coastguard should of made sure that the kayak they found was the one that deployed the beacon, and JMcKroid should of had a light strobe, mirror, or flares to signal with. The harbor master at HMB requires kayakers to carry flares so I have 3 in my pfd, plus a mirror. We should all carry signaling devices.

And yes I carry a EPIRB.

Glad you carry an EPIRB.  The search was ongoing, and perhaps confirmation was not done because I secured the beacon on the beach.  The PLB strobe was flashing.  In bright daylight, it was not very noticeable.  A signal mirror allows the user to direct the light, and it would have been more effective.  Failing to have one readily at hand was my error.  Since that incident, I now carry a metal signal mirror and a Sirius SOS distress light.  I prefer that over pyrotechnics which have expiration dates.  Pyrotechnics are more noticeable while activated, but have a much shorter period of signaling when compared to the SOS distress light.
Title: Re: EPIRB
Post by: AlsHobieOutback on December 17, 2022, 10:11:52 AM
I've not carried a signal mirror to this date, but always have had flares in my PFD.  Seems like a signal mirror is cheap insurance to add to my flare pocket.   :smt004