Getting a dog to speak upon a find

[cjs66]

Has anyone used the tracker that's advertised on the telly at the mo, not sure what it's called but the lass on the ad mentioned "wheres my dog". I've just got my first working dog in the shape of a crazy Fox red lab, and something like this is starting to look very appealing.
I'm not up for spending hundreds on one, as I've seen you can do. He's quiet at the moment and recall is coming along canny but we know things can change when they get a whiff. He's coming up five months and I've not had him near a gun yet and the closest he's come to deer is chewing on antlers.

cjs

 

[secondtry]

Might be easier to work on getting her to come and get you rather than bark.
I've had a couple of dogs which naturally seemed to do this - one GWP and one mutt.
The GWP was more reliable and both of them would give me the "hurry up idiot" look when they came back.