Saturday, Aug 04, 2018 at 18:27
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The fundamental is.................
A PLB is for absolute emergency. It is simple to activate (pull a pin) and will summon general assistance and transmit your location but it is not specific as to the nature of the emergency. And the arrival of assistance may be some time coming.
A Satphone used in a similar manner would be to dial 000 and describe the emergency nature in order to be directed to the appropriate service. It is not quite so simple to operate. Unless it is constantly active and registered to a satellite it will take a little time to engage the called party. It does not transmit your location so you may need to be able to determine this and announce it.
On the other hand, it has the advantage over a PLB that you are able to talk with professional support such as the RFDS and obtain advice for
first aid.
Of course, it also serves for social purposes.
MOST IMPORTANT: Both of these devices need to be able to "see" the satellites before they can operate. Neither will work if within the confines of a vehicle cabin. They must be out of the vehicle for reliable connection.
In my case, the Satphone is in a pouch attached to the roll-bar and is constantly connected to the vehicle 12v to keep the battery charged and constantly connected to an exterior antenna (and thus to the satellites) so that we can receive calls, but more importantly, so that there will be no delay in gaining registration. The PLB is also in a pouch that can be grabbed quickly. Neither will fall out in the event of a rollover.
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