N
Nico Coesel
Le Chaud Lapin said:
Burn the tires!
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building electronics beacon for survival
Burn the tires!
M
maxfoo
Hell, why both getting rescued? just build a nice shelter make a bow and some
arrows (I always have my 60lb draw compound bow in the trunk) and hunt the local
wildlife. Gawd what a awesome vacation I'd have. In the spring when the loggers
come back I'd hitch a ride back to civilization and pay frigging taxes again...
A
AZ Nomad
and no fryng pan?
A
Ancient_Hacker
There are standard frequencies and transmitters just for this purpose.
On VHF, there.s 131.5MHz, 262MHz. Somewhere up in the 440's there's a
frequency that's picked up by recon satellites, triangulated or
dopplered into a location, and sent down to Earth stations. Most every
plane has a locator beacon that goes off and signals the satellites if
the plane makes any abrupt gyrations, like during a crash. The beacon
is located at the top of the tail so it's likely to be able to eject
itself before the plane goes under water or underground.
There's not much point in building your own.
On VHF, there.s 131.5MHz, 262MHz. Somewhere up in the 440's there's a
frequency that's picked up by recon satellites, triangulated or
dopplered into a location, and sent down to Earth stations. Most every
plane has a locator beacon that goes off and signals the satellites if
the plane makes any abrupt gyrations, like during a crash. The beacon
is located at the top of the tail so it's likely to be able to eject
itself before the plane goes under water or underground.
There's not much point in building your own.
J
John Fields
J
Jim Yanik
seems they were able to "ping" his and the other snow-trapped folks
cellphones when they were turned on,even though there were no CP towers
around.
Maybe they have an air-mobile CP relay on the rescue aircraft?
M
Michael A. Terrell
AZ said:
Be a wild man and fry it on the end of a stick, over an open
campfire.
--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.
Michael A. Terrell
Central Florida
J
Joel Kolstad
The Real Andy said:
The EPIRB service was originally designed for ships, and it's not really
designed to scale to hundreds of thousands or even millions of users; I think
that's why you don't see government agencies suggesting that, e.g., everyone
or every vehicle should have an EPIRB.
That being said, there's no reason a system designed for a much larger user
base couldn't be deployed. It's the usual millions of dollars in funding to
put up a satellite that's the hold-up, I imagine -- the question being whether
the money could save more lives if spent differently.
---Joel
J
Jim Thompson
Modern cell phones are required to have GPS capability for 9-1-1
location.
Around here they offer "track your teenager", so the technology
already exists.
...Jim Thompson
A
AZ Nomad
No they don't. They'd be 4 times bigger if they had a GPS
receiver. Perhaps you're thinking of cell tower triangulation.
D
default
R
Richard The Dreaded Libertarian
How about not traipsing up the side of a mountain in the middle of
a blizzard?
I wonder what the tab was for that "rescue" mission?
FWIW, there have been survival beacons for decades.
Good Luck!
Rich
R
Rich Grise
Yeah, and just stick a little Honda 1.5 KW generator in your backpack
to power all this crap....
Cheers!
Rich
AZ said:
Some cell phones do have GPSs, and the phone isn't any bigger. However,
the law stated that the cellular providers have to be able to locate a
phone. There is no legal requirement for a GPS in the phone.
When I had a phone with GPS, I kept the GPS off except for 911.
2
2006Young
Thank you for all your suggestions.
Let me add another comments. I notice many animals in the wild were tagged
for searchers to uses electronic tracking devices to locate for studies. Can
you tell me more about these tags devices and tracking instruments? Why can
we build these simple low cost, small and light tag devices. Leave it in car
or carry in backpack with the tag turned off. Turn it on when you are loss
and wait for rescuer.
Make sure to notify family member of which tag devices you carry. So that
rescue searchers can use the correct tracking instruments.
Let me add another comments. I notice many animals in the wild were tagged
for searchers to uses electronic tracking devices to locate for studies. Can
you tell me more about these tags devices and tracking instruments? Why can
we build these simple low cost, small and light tag devices. Leave it in car
or carry in backpack with the tag turned off. Turn it on when you are loss
and wait for rescuer.
Make sure to notify family member of which tag devices you carry. So that
rescue searchers can use the correct tracking instruments.
D
default
Ditto that, 121.5 monitored by aircraft and coast guard and a
"registered" product on 406 for sat rescue.
T
The Real Andy
MAybe not every vcehice, but here in australia it should be compulsory
for any vehicle leaving a major outback highway.
What is there now works resonably well. Millions of EPIRB's does not
mean that there is going to be millions of activated EPIRB's.
S
Steve
You can buy these transmitters. See www.trackerradio.com or
wildlifematerials.com for instance. They are about $130 for a collar
used with a bird dog or hunting hound. The ones for civilian use
generally use 216 - 220 MHz. The receiver uses a directional antenna
(yagi or similar). The primary restriction for use with animals is the
weight of the transmitter, which has a direct impact on range and
battery life. The two restrictions for using it for a rescue situation
would be that it is approximately line of site only (limited in a
mountainous environment), and the searchers would need to know what
frequency you were transmitting (and hopefully not have anyone else in
the area transmitting in the same frequency).
J
Joel Kolstad
The Real Andy said:
I can see the U.S. easily adding one hundred million EPIRBs with its
population, and with China (long-term) you'd probably get another quarter
billion. With those kinds of numbers, even with only 1 person in a million
inadvertently activating theirs every day, you're looking at a significant
increase in the funding needed to kept the program going.
I'm not claiming it's a bad idea, just that there'd be a significant political
fight to get the funding. The Wikipedia article mentions that the original
program was initiated after two U.S. congressmen died in an airplane crash...
I'm sure the current situation would be different if it had been, e.g., the
Bush twins out there.
I'll definitely heed your advice and take an EPIRB with me if I visit the
Aussie outback someday.
---Joel
J
Jim Thompson
The law states you must be able to locate within some number of feet
(anyone have the spec on how many feet?). In some high density places
that can be done with triangulation. In the boonies it requires GPS.
AZ is the boonies.
Is AZ Nomad really in AZ ?
...Jim Thompson
