Monday, Mar 11, 2013 at 20:52
The issue of urgent non life threatening communication, or very important non urgent communication is not helped one bit, by either a proper, EPERB system bassed PLB or any of the down spec personal trackers.
Because they are single way communication with very little information conveyable.
A sat phone or
HF radio will give two way communication "full text" two way communication, where the situation can be discribed, verbal help given and a wide variety of matters discussed.
Again back to the EPERB based PLB V the down spec personal trackers.
Even on land the speed, accuracy, continuous transmission and the transmission of a tracking signal can make finding some one in dense scrub very very much faster and easier.
The thaught that being a moving target being unlikely on land is also a falacy....remember a lot of people who travel do also undertake other activities, like walking, climbing, boating, rafting and all sorts of stuff.
Very often a party or individual in need of rescue will move to put themselves in a rescuable position or due to other causes they may have to move.
For example being caught in a bushfire, flood, landslide, avalance, storm damage siruation where moving ahead of the situation, to a place of safety and to a rescuable position may be your only hope.
AS for calling "MAYDAY" on UHF CB......Oh good luck chum......UHF CB has a very limited range...near line of sight ( and that means exactly what it says)...in open country you may get 12 to 15Km, If you have a high position may be 30Km.....indense hilly country it may be as little as 500meters....UHF CB can not be relied upon.
Appart from the fact that there is no official monitoring of UHF CB, no mandatory requirement to keep a radio watch, no mandatory protocols and even if there was UHF CB is a zoo.
In
places where UHF CB is used it may be of help...but remote...foorrget it.
Besides, in a marine situation where there is clear and present danger, we are taught to pop the EPERB..... FIRST and call MAYDAY second.
That is how you stay alive
The EPERB is a guaranteed thing no radio is.
On water with modern EPERBSs particularly GPS, by the time you get your first MAYDAY exchanges with a marine rescue base or a nearby ship, the search and rescue authorities will know who they are looking for and where within meters
Those search and rescue authorites will have access to all available communications bands, have much better transmitter sites and the ability to communicate many different people with and manage a rescue.
For a mayday call to be much use, you need to know where you are.....and that is not as simple as it sounds...often that is the very reason you are in trouble....you also need to have time,
battery power and ya radio in good condition.......good luck with that in a rolloveror vehicle fire on land or a capsize or taking water on water.
ALL the means of communications have drawbacks AND the single most important thing is risk reduction by proper preparation and situation management.
In this day and age,
we all carry mobile phones.....if you are going bush don't waste ya time with anything less than TELSTRA 3G.
We should all have UHF CB in our 4wds.
there are only two other things I would bother with and that is a SAT phone.
And if I was doing any adventuring, hiking, climbing, rafting or such a proper PLB on the EPERB system.
HF radio may be great as a community thing, but it is expensive and requires "some skill and undrstanding" and is most definitely not a guaranteed contact any time any place.
The down spec personal trackers....in my view are a very poor substitute for a proper PLB and just not worth the money at any price.
By the time you pay for ya spot tracker and the yearly fees....over the 5 years between battery changes, ya still ahead on a PLB...and that is on price alone.
cheers
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