Friday, Feb 05, 2010 at 11:05
The 121.5 frequency is not being monitored anymore by AUSSAR / AMSA. Only 406Mhz. This was as of February 2009. 121.5 PLB's cannot be bought anymore and you are a fool to rely on it.
With the new 406Mhz beacons there is 2 types. With and without GPS.
Without will give an accuracy within 5 kilometres.
With a GPS must be accurate within 100 metres. (Australian Starndard)
I know which one I'd rather...
SPOT has a GPS and specs state accurate within 5 metres.
With SPOT 1 there has never been any manufacturing issues or recalls. SPOT 2 has had a minor issue with the battery indicator light and has been recalled and soon to be re released.
SPOT is heaps cheaper and you can get some value out of your product along the way. An EPIRB / PLB is and "All or nothing" device. At least with SPOT you can request help from friends and not get the full cavalry for a flat tyre in the outback!
SPOT has a light indicating 30% battery life left. Then you still have at least 2 days in distress mode (911).
Under the Australian standards a PLB must only operate in this mode for "NO LESS THAN 24HRS" and an EPIRB "NO LESS THAN 48HRS" SPOT will exceed this with full batteries being 7 days!
Alkaline batteries can also be used in an emergency. I think you would be hard pressed to find no device on a
camping trip without a couple of spares if you needed them.
If you activate an EPIRB / PLB where is no way of cancelling the message even if you turn it off. SPOT allows you to send a CANCEL help / 911 message too. If you activate an EPIRB / PLB and turn it off Emergency
Services will still come and look for you as they don't know if the batteries are flat (It can happen in these too) or unit destroyed / sunk.
With EPIRB's and PLB's once activated you have to get it sent back for new batteries at a large cost. With SPOT you can replace your own for $10!
SPOT you will get the same level as response as an EPIRB / PLB. It is just monitored in a different place. This link is a "Memorandum of Understaning" between Australian Maritime Sfaety Authority and SPOT in relation to activations. This ensures and activation of the 911 is done correctly.
http://natsar.amsa.gov.au/Manuals/Search_and_Rescue_Manual/documents/SPOTMOU11June2009.pdf
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