Yeah, the antenna would rest in that narrow panhandle part and it would be plugged into the little round connector.
Was that factory sealed? We did end up swapping another cell sled recently, but it wasn’t opened to check the antenna. It is possible they may have had a few that went out without antenna.
I forgot, those LTEV-1 have a different antenna setup I believe, but the next step would be RMA regardless in this case given all the other troubleshooting.
I am sending you a private message with RMA details.