Getting the Best RF Signal: Antenna Gain, dB, Line of Sight, and Testing

Overview

Learn how to build a reliable radio link for remote data collection in a Campbell Scientific data acquisition system. This video explains the key differences between narrowband and spread-spectrum radios, including typical frequency ranges, tradeoffs affecting distance and data traffic, and the impact of interference on overall performance. Practical guidance is included for antenna selection and placement, with emphasis on line-of-sight considerations, how attenuation reduces signal strength, and methods for improving link quality. The video also introduces the use of a radio test kit to evaluate radio/antenna combinations on site and support confident equipment selection for dependable communication back to a base station.