Avalanche safety for dogs

I frequently tour with my dog. I'll likely be purchasing the Mammut RAS pack this year, and it got me to thinking about how would I locate my dog in the event of avalanche burial. I've looked on-line at the Garmin tracking systems, and I don't know what their range would be if buried under snow. I've considered strapping an Ortovox to the dog. I'm curious if any of you have opinions or best strategies on this topic.
I'm hoping to keep this the only topic on this thread versus other threads I've read about; like should dogs even be touring, or the dangers of skiing with dogs, sharp ski edges and so forth.
Thanks a lot for any input.

Pieps TX Dog Avalanche Transmitter

www.patrollersupply.com/equipment/item_3643.asp

Pieps DSP transcievers have a special mode for searching for the Pieps TX -- which transmits at a slightly different frequency (457.6 khz) so that it isn't picked up during normal search operations.

Randy's suggestion is the only option you should consider.
Putting a regular beacon on a dog is verbotten within the BC community( I assume that's what you meant by using an Ortovox ) and frankly even thinking about it suggests the person hasn't thought the process through and is worrying in it's self.

Speed is of the essence in uncovering a buried victim and in a multiple burial scenario, the person uncovered first often has the best chance of surviving.
Imagine for a moment that you took 2.5 mins to locate a signal, 5to 10 minutes uncovering the person and found out it was your dog and not your human ski partner who remains buried and suffocating a short distance away.

I ski with my dog and love him but his life is not worth a dime next to a human being.
Frankly I wouldn't even use a specific dog beacon as it could be a distraction.
If you tour with your dog, your dog is expendable...if you can't accept this...leave him/her at home.

@ Randy: Thank you.
@ Scottsman: very true, valid and point well taken. Thank you for your input.

Brian, we use the Garmin Astro GPS collar on our dog whenever we're in the backcountry. It doesn't interfere with human beacons, we know where the dog is whenever out of sight and it tracks the dog's path if he's stuck in a moat, tree well, etc.  We use the Astro extensively for search and rescue work for the past several years and it's fairly reliable.  On the other hand, the setup is pricey and in talking with Garmin support, the GPS signal is not intended to work for a deep snow burial.  We've tested it up to 2 feet of snow and it does work, it also displays the dog's track up to where the signal was lost .... so though not ideal, it seems better than the alternatives out there.

Hope that helps,