Yes Node 1 is the nRF24L01 + PA +LNA like this ( http://img.dxcdn.com/productimages/sku_222913_1.jpg ) with antenna 2db
And the Node 31 has the nRF24l01 "classic" ( http://img.dxcdn.com/productimages/sku_149483_1.jpg ), solder on PCB like this ( Domotiser un appareil grâce à un relai V2 - La domotique DIY )
