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How would that work? A microchip is a passive device, stimulated by an external EM source - a GPS locater needs a power source.

Honey you're asking the wrong person!! I have no clue, but I've been hearing about it.

If you hear anything more about it, I'd like to see some info. It sounds cool and would probably work well here.

Matt. Rocky's a Dog.
If you hear anything more about it, I'd like to see some info. It sounds cool and would probably work well here.

How would a sub-dermal GPS receiver, um, receive? A better bet might be the kind of radio triangulation that law enforcement agencies have been getting the mobile phone companies to do for them. It's less accurate but the technology seems like a better match (no line-of-sight issues).

Melinda Shore - Software longa, hardware brevis - (Email Removed)

"The US budget is out of control." Goldman, Sachs
It sounds cool and would probably work well here.

How would a sub-dermal GPS receiver, um, receive?

I don't actually believe that such a device would work at all, but reception should be easy-peasy. ASCII schematic:

> >
> >
> antennas >
^ ^
/>\ />\
/ > \ DOGGIE'S / > \
/ > \ EARS / > \
/ > \ / > \
/ > \ / > \
/ > == > \
( > antenna wire > )

\ /
\ /

Matt. Rocky's a Dog.
a GPS locater needs a power source.

The tail, obviously.

Wouldn't work for Rocky, then.

Matt. Rocky's a Dog.
> > > > > antennas >[/nq]^ ^
/>\ />\ / > \ DOGGIE'S / > \ / > \ EARS / > \ / > \ / > \ / > \ / > \ / > == > \ ( > antenna wire > )

> > DOGGIE'S HEAD >

( ) \ / \ /

That is a fabulous portrait of Image.

Melinda Shore - Software longa, hardware brevis - (Email Removed)

"The US budget is out of control." Goldman, Sachs
I don't actually believe that such a device would work at all, but reception should be easy-peasy. ASCII schematic: > > > > > antennas >[/nq]^ ^
/>\ />\ / > \ DOGGIE'S / > \ / > \ EARS / > \ / > \ / > \ / > \ / > \ / > == > \ ( > antenna wire > )

> > DOGGIE'S HEAD >

( ) \ / \ /

nice! it wouldn't work with floppy-eared dogs, though.

shelly (perfectly foul wench) and elliott and harriet http://home.bluemarble.net/~scouvrette
The tail, obviously.

Wouldn't work for Rocky, then.

that's okay. harriet's nubbin goes fast enough to power two of them. i'd be more than happy to beam the excess energy to Rocky.

shelly (perfectly foul wench) and elliott and harriet http://home.bluemarble.net/~scouvrette
So not only would the dog's skin have to be transparent and nekkid, it would have to have a clear ... skin and an antenna outside the skin, but ewww, gross (and risky for those of us with particularly rowdy dogs).

GPS receivers should be able to pick up a signal through a thin layer of skin. Mine can pick up satellites inside my house under ideal conditions and under a forest cover usually. A forest cover (leaves that are mostly water) wouldn't be too different from skin.

I have heard of a sub-dermal GPS, but I believe it is bordering on urban myth. IIRC, someone claimed to have had one imbedded in them, but they probably wore a tin-foil hat and heard messages from pixies too.
Strap a Rino to the dog collar and set it to send position on demand. I'm not sure if that's exactly how they work, but they do have some kind of "where are you" capability.

If it works, get Garmin to sell an armour-plated version for doggies :-)
Mike
GPS receivers should be able to pick up a signal through a thin layer of skin. Mine can pick up satellites inside my house under ideal conditions and under a forest cover usually.

I've got a Garmin Etrex Summit that can barely get a signal from a window inside my house, but it does okay in a mesh pocket in a backpack (except in the area's notorious gorges).
Strap a Rino to the dog collar and set it to send position on demand. I'm not sure if that's exactly how they work, but they do have some kind of "where are you" capability.

Rinos are very brilliant, but they've only got a range of a few miles and work in "ad hoc" mode (no base station - no way to call home). I think they use GMRS and FRS and are very low power and limited to attached antennas. Which brings up the problem Matt alluded to, which is that GPS sucks a lot of power.
These problems will all be solved some day, just not yet.
Melinda Shore - Software longa, hardware brevis - (Email Removed)

"The US budget is out of control." Goldman, Sachs
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