Practical, technical guides and calculators on antenna and RF engineering — written by the team that designs and measures Kreita's EGLE antenna series.
Calculate free-space path loss, received signal strength, link margin and maximum range for FPV, UAV and point-to-point links — live in your browser.
How circular polarization works, why FPV and drone links use it, and what happens when transmit and receive antennas don't match.
What S11 means, how it relates to reflected power, return loss and VSWR, how to read an S11 plot, and what good S11 looks like at 5.8 GHz.
More guides on antenna gain, beamwidth, mounting and installation are on the way. If you need help sooner, our engineers are glad to talk through your specific link.