We now have all the components ready for assembling the RA4 Antenna Array. The antenna resonators are made of Arlon AD600A microwave material. We also have one spare sheet of AD600A to manufacture more resonators for RA1 Antennas and additional RA4 Antenna Arrays. Join the community and learn more about the RA1 Antenna Array assembly details on Amungo forum. We also recently completed a new batch of our popular Early Board. Our RA4 Antenna Array can be fitted to the Early Board. Enjoy the first navigation antenna array for Everyone!