I have two HYS TC-YG05 Yagi antennas that were gifted to me and I would like to stack them side by side ( Collinear), in the vertical orientation for some local weather balloon telemetry data gathering.
I have attempted to use my Google-Fu as the best that I can in the attempt to search in understanding the stacking of yagi antennas; it seems the boom spacing is not very critical so to speak when not utilizing long yagi antennas. I believe I can get away with the spacing @ 432mhz using .6λ @3dB which equates to a spacing of ~1.4 feet
So after researching a bit more, appears there is a formula that can be used if you know the E/H Beamwidth information of the antenna;
So stacking on the Stacking distance E plane in inches, looks like my distance between the Yagi antennas would be roughly 3 feet, center to center. Using the DL6WU calculator, it came out to be be 3.3 feet; however, from my understanding, the DL6WU calculator should be used for long yagi antennas.
Any thoughts if I am correct in my research?