antenna_tuning
Tuning the antennas is a process of cutting small portions of the antenna off of the PCB. The best way to do this is to use an x-acto knife and scratch the copper off. Be careful not to damage any components on the board. Also be careful not to cut yourself.
No cuts are required to optimize the antenna for 868MHz.
Cut the end two strips off the antenna. There's a white line on the antenna where you should stop cutting.
