A majority of modern positioning solutions are based on global navigation satellite systems (GNSS). These systems provide an exact, reliable, flexible and cheap solution for the related tasks, like sea navigation, aviation or the automotive sector. However, they are vulnerable to deliberate or collateral disturbance by means of jammer or spoofer signals. Hardening the systems in an environment of ever increasing demand for reliability is therefore one of the big challenges in the field. This work presents a solution focused on an analog beamforming solution, due to its cost effectiveness. A prototype of a four antenna receiver is shown with a measured jammer suppression of above 30 dB . The measurement results were obtained in a realistic over the air scenario. The presented work functions as a proof of concept for an integrated version to be implemented in future.