GOES crossed Yagi antenna is a lightweight, all‑weather 11‑dBi RHCP Yagi antenna designed to operate in the 401 ... 402 MHz frequency range. The antenna radiates right-hand circular polarized energy in a pencil beam pattern. The beam width is approximately 45°, measured at half-power points.
The input impedance is 50 Ω, and the voltage standing wave ratio (VSWR) across the operating frequency range of the antenna is better than 2:1.