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blog:lorawan_kamp-lintfort [2022/10/19 18:09] – rolf001blog:lorawan_kamp-lintfort [2022/10/19 19:00] – rolf001
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 | Fig.:  The two white rod antennas at the southwest corner of the tower of the Friedrich-Heinrich colliery.  | | Fig.:  The two white rod antennas at the southwest corner of the tower of the Friedrich-Heinrich colliery.  |
  
-Because of the metal cage encompassing the upper platform of the tower, the antennas had to be placed at a distance, otherwise, their range might be impacted. With the help of the former miner **Jörg Kamps** from the HSRW FabLab Team, we together designed a simple holder and he could manufacture multiple ones made from stainless steel. These enabled us to specifically tune the distance from the metal cage for each individual antenna. Therefore we used our Network Analyzer which enables us to see the frequency at which the antennas are able to receive data.+Because of the metal cage encompassing the upper platform of the tower, the antennas had to be placed at a distance, otherwise, their range might be impacted. With the help of the former miner **Jörg Kamps** from the HSRW FabLab Team, we together designed a simple holder and he could manufacture multiple ones made from stainless steel. These enabled us to specifically tune the distance from the metal cage for each individual antenna. Therefore we used our Network Analyzer which enables us to see the frequency at which the antennas are able to receive data. Thanks to **RF Frontend GmbH** to support us with antenna tuning!
  
 | {{:blog:20221018_114944.jpg?300&direct}}                                   | | {{:blog:20221018_114944.jpg?300&direct}}                                   |
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 As of writing this there where no test done yet on the southern gateway. As of writing this there where no test done yet on the southern gateway.
 +
 +===Network Activity===
 +
 +| {{ :blog:lorawan_ttn_zechenturm_nord.png?direct&400 |}} | {{ :blog:lorawan_ttn_zechenturm_sued.png?direct&400 |}} |
 +| Fig.: Activity of north-east gateway (2022-10-19T16:45) | Fig.: Activity of south-west gateway (2022-10-19T16:45) |
  
 The system is all powered through mains power provided by the tower itself. On the northern side, an electrical box is located where all the network and power distribution over PoE (Power over Ethernet) is done. The idea is to later add a redundant internet connection as well. The system is all powered through mains power provided by the tower itself. On the northern side, an electrical box is located where all the network and power distribution over PoE (Power over Ethernet) is done. The idea is to later add a redundant internet connection as well.