I am using nrf24l01 at transmitter side and nrf24l01+pa+lna at receiver side.
both are placed in closed condition. but transmitter nrf24l01 is covered with epoxy and placed inside the box and kept outside the house, receiver is kept inside the box and placed inside the house.
Device are working fine with 10meters range.
I need 20 meters range. what will be the solution can anyone please help me