Review sequence: Spring Antenna PCB Layout³Ô¹Ïtv / ENGINEERING EXPLANATIONReview sequence: Spring Antenna PCB LayoutDefineconductorControlheightTunebaselineCheckvariationReleasedrawingKeep the physical revision and the evidence for each decision.Spring antenna mechanical and tuning recordOriginal schematic. Not production artwork, calibrated data or performance evidence.