I think that he will get used to the perimeter fencing in good time. He probably quite a bit confused right now and got a little scare with the new system, but will figure it out. Just make positive experiences like it sounds you are doing inside the area....and maybe reinforce to him with "bad" vocal cues when you are near the fence.
I see you have a big lap doggy there...he is so adorable!
“The greatness of a nation and its moral progress can be judged by the way its animals are treated” Mahatma Gandhi
My loyal menagerie... (all neutered, spayed, and gelded...and YOU aren't safe either!)
Emmy (Miniature Pinscher)
Petie (Miniature Pinscher)
Shadow (Miniature Pinscher)
Tito (Paint Gelding)
Francesca (Miniature Horse Filly)
Vincenzo (APHA gelding)
Lots of fishies......