Today I kept track of the signal strength of the satellite TV signal from the satellite Astra 23.5 (Astra 3B transmits just above 11 GHz). It was interesting to see that a dip in the signal strength came with the bad weather that arrived from the North Sea;
I downloaded KiCad version 4.0.7 which is an open source Electronics Design program. With the schematic editor you can create your design
without limit; there are no paywalls to unlock features. An official library
for schematic symbols and a built-in schematic symbol editor are available.More
info here: http://kicad-pcb.org/ The first schematic with this program: