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Is my Epirb still good

Old 02-04-2007, 06:55 PM
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Default Is my Epirb still good

I have an ACR Mini B2 ILS(product # 2763) Class B EPIRB and need to know if I can still rely on it. The battery is good til 2008. I am receiving conflicting information about whether or not I can rely on this older frequency(121.5 and 243.0MHZ) models.
The last thing I want is to find out the hard way that nones coming to look for me.

Old 02-04-2007, 07:00 PM
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Default Re: Is my Epirb still good

Here's the excerpt from the U.S. Coast Guard website. You're far better off getting a 406 EPIRB. May the winds be fair and let's hope you never have to use it.

121.5/243 MHz EPIRBs

These are the most common and least expensive type of EPIRB, designed to be detected by overflying commercial or military aircraft. Satellites were designed to detect these EPIRBs, but are limited for the following reasons:

Satellite detection range is limited for these EPIRBs (satellites must be within line of sight of both the EPIRB and a ground terminal for detection to occur),
Frequency congestion in the band used by these devices cause a high satellite false alert rate (99.8%); consequently, confirmation is required before search and rescue forces can be deployed,
EPIRBs manufactured before October 1989 may have design or construction problems (e.g. some models will leak and cease operating when immersed in water), or may not be detectable by satellite. Such EPIRBs may no longer be sold,
Because of location ambiguities and frequency congestion in this band, two or more satellite passes are necessary to determine if the signal is from an EPIRB and to determine the location of the EPIRB, delaying rescue by an average of 4 to 6 hours. In some cases, a rescue can be delayed as long as 12 hours.
COSPAS-SARSAT is expected to cease detecting alerts on 121.5 MHz by 2008.
One November 3, 2000, the National Oceanic and Atmospheric Administration (NOAA) announced that satellite processing 121.5/243 MHz emergency beacons will be terminated on February 1, 2009. Class A and B EPIRBs must be phased out by that date. The U.S. Coast Guard no longer recommends these EPIRBs be purchased.
Old 02-04-2007, 07:02 PM
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Default Re: Is my Epirb still good

starnavigator - 2/4/2007 7:00 PM

Here's the excerpt from the U.S. Coast Guard website. You're far better off getting a 406 EPIRB. May the winds be fair and let's hope you never have to use it.

121.5/243 MHz EPIRBs

These are the most common and least expensive type of EPIRB, designed to be detected by overflying commercial or military aircraft. Satellites were designed to detect these EPIRBs, but are limited for the following reasons:

Satellite detection range is limited for these EPIRBs (satellites must be within line of sight of both the EPIRB and a ground terminal for detection to occur),
Frequency congestion in the band used by these devices cause a high satellite false alert rate (99.8%); consequently, confirmation is required before search and rescue forces can be deployed,
EPIRBs manufactured before October 1989 may have design or construction problems (e.g. some models will leak and cease operating when immersed in water), or may not be detectable by satellite. Such EPIRBs may no longer be sold,
Because of location ambiguities and frequency congestion in this band, two or more satellite passes are necessary to determine if the signal is from an EPIRB and to determine the location of the EPIRB, delaying rescue by an average of 4 to 6 hours. In some cases, a rescue can be delayed as long as 12 hours.
COSPAS-SARSAT is expected to cease detecting alerts on 121.5 MHz by 2008.
One November 3, 2000, the National Oceanic and Atmospheric Administration (NOAA) announced that satellite processing 121.5/243 MHz emergency beacons will be terminated on February 1, 2009. Class A and B EPIRBs must be phased out by that date. The U.S. Coast Guard no longer recommends these EPIRBs be purchased.
That answers my question. Thanks for the info.
Old 02-04-2007, 09:01 PM
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Default Re: Is my Epirb still good

I believe very recently it was announced that it is now no longer legal to use a 121.5/243 mhz only, non-406 EPIRB , such as yours . An exception is the local personal/vessel system used for short distance location of a M.O.B. wearing a device that transmits back to the vessel.
Time to upgrade to a 406 EPIRB is now.

Read this: https://www.piersystem.com/go/doc/786/139352
Old 02-05-2007, 05:12 PM
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Default Re: Is my Epirb still good

121.5mhz detection is still active but since Jan1, 2007 121.5 Epirbs are no longer legal for use in the USA.

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