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Xbee pro s1 distance problem

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I am using 4 series 1 xbee module 2.4ghz PRO s1 with digimesh fw version 8070.
They works fine and are connected together in a mesh network that i can discover using the xctu software, but there is a problem, i am not be able to communicate with gateway if the motes are 5 meters away from it, when i perform the range test the RSSI value decrease (-100/-105dbm), i have already tried to increase PL=4, but RSSI value change to -98dbm and some pkt are lost... the xbee modules are all in line of sight so i can't understand what could be the problem. Any suggestion??
asked Dec 10, 2014 in DigiMesh Proprietary Mesh Networking by pie82 New to the Community (2 points)

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1 Answer

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What do you refer to as Line of Site? It may be visually LOS but not RF LOS. How high above all obstructions are the gateway and modules?
answered Dec 10, 2014 by mvut Veteran of the Digi Community (15,323 points)