i agree with mez you need a system that will reach out there.(thats why i wouldnt buy tracker products) but i had a quick track 5000 and hated it for the fact it was to complicated to work but im sure the other models are easier. talked to a good friend and comp hunter last night and he said he has tracked dogs 13 miles with his wildlife 1000. that is pretty impresive in the timber we hunt in.