What this tool is for
RF calculators for antenna length, coax loss, VSWR, Fresnel zone, link budget and RF PCB design.
Basic formula
RF calculator hub.
Design notes
Use these values as a starting point. Real RF performance depends on PCB layout, ground plane, enclosure, cable loss, connectors and measurement conditions.
Common mistakes
Common mistakes include ignoring coax loss, poor antenna placement, missing ground plane, wrong impedance and testing too close to objects.