Upgrade your antenna to this flexible whip design. Improves performance, measured SWR of 1.3 compared with the stock stubby antenna at a SWR of 3.5. SWR is a measure of transmission efficiency, how much power from the LoRa radio makes it out into the world via the antenna. SWR 1.3 = 98% efficient SWR 3.5 = 69% efficient