sigfox Repeater - Guide utilisateur / User guide version 1.0.032Page of 45ENFROptimised positioning Low radio range150 cm20 cm10790 27Holes for fasteningcollars7. INSTALLATION AND USE7.1. Correct positioning of the productThere are two key rules for optimising radio ranges.• The first one consists of positioning your product as high as possible.• The second one consists of limiting the number of obstacles in order to avoid excessive attenuation of the radio wave.Position: To the extent possible, install the transmitter at a minimum height of 1.50 m and do not attach it to the wall.Obstacles: Ideally, the product must be 20 cm away from any obstacle and, if possible, near an opening (the closer the obstacle is, the more theemitted power will be absorbed). All the materials encountered by a radio wave will attenuate it. Bear in mind that metal (metal cabinets, beams,etc.) and concrete (reinforced concrete, partitions, walls, etc.) are the most critical materials for the propagation of radio waves.7.2. Types of fasteningsThe product offers 3 fastening methods that enable numerous ways of positioning it depending on the environment where it has to bedeployed.7.2.1 Tube or mast fasteningsAs explained in section 4.1, the bestradio performance is achieved bypositioning the product as high aspossible.The fastening collar fastenings enablethe product to be fastened on amast or tube under completely safeconditions