tome
New member
Re: EPIRB - time for GPS to lock on
If your McM PLB or EPIRB is pre June '04 you should ask for replacements, not just software upgrades. In independent testing they consistently failed to acquire GPS at all and were subsequently withdrawn from sale by some outlets, notably West Marine in the USA.
I understand the problem was that if they got wet(!) the water would sit around the antenna and block the gps signal path. McM claim to have solved the problem by re-designing the antenna base, but as far as I know they have not agreed to independent testing yet, although they have done their own.
I should note that in the tests they did make contact with the stellite via 406MHz so the alert was received, but not with any position info.
So don't crack the champagne when the 45 seconds are up!
If your McM PLB or EPIRB is pre June '04 you should ask for replacements, not just software upgrades. In independent testing they consistently failed to acquire GPS at all and were subsequently withdrawn from sale by some outlets, notably West Marine in the USA.
I understand the problem was that if they got wet(!) the water would sit around the antenna and block the gps signal path. McM claim to have solved the problem by re-designing the antenna base, but as far as I know they have not agreed to independent testing yet, although they have done their own.
I should note that in the tests they did make contact with the stellite via 406MHz so the alert was received, but not with any position info.
So don't crack the champagne when the 45 seconds are up!