Changes for page How to improve LoRaWAN distance
Last modified by Xiaoling on 2024/08/16 11:25
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... ... @@ -10,7 +10,6 @@ 10 10 In real-world deployment for LoRa, distance is a common topic. We always want to have the longest distance. This chapter shows some instructions for how to improve this. 11 11 12 12 13 - 14 14 = 2. Analyze at the software side = 15 15 16 16 == 2.1 LoRa parameters that effect distance == ... ... @@ -45,6 +45,7 @@ 45 45 |(% style="width:134px" %)**AS923**|(% style="width:400px" %)14dBm|(% style="width:362px" %)SF=12|(% style="width:102px" %)125Khz 46 46 47 47 47 + 48 48 == 2.2 Adaptive Data Rate (ADR) and set max distance == 49 49 50 50 ... ... @@ -66,7 +66,6 @@ 66 66 This can be downlink via the LoRaWAN downlink command, see [[this link>>url:http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H8.2UseDownlinkCommandtosetafixuplinkDR]] for reference. 67 67 68 68 69 - 70 70 == 2.3 Check for short distance problem == 71 71 72 72 ... ... @@ -79,7 +79,6 @@ 79 79 [[image:image-20221006185826-3.png]] 80 80 81 81 82 - 83 83 == 2.4 Best software settings for the longest distance == 84 84 85 85 ... ... @@ -104,13 +104,12 @@ 104 104 [[image:image-20221016081725-1.png||height="426" width="706"]] 105 105 106 106 107 - 108 108 = 4. Installation Guidelines = 109 109 110 110 == 4.1 Check the use environment == 111 111 112 112 113 -First , User should notice: Radio link quality and performances are highly dependent of the environment. 110 +First , User should notice: Radio link quality and performances are highly dependent of the environment.Even you have the same hardware and antenna, Different installation will result in different performance. 114 114 115 115 (% style="color:blue" %)**Better performances can be reached with:** 116 116 ... ... @@ -134,7 +134,6 @@ 134 134 In some case, we have to install the device inside the chamber or next to a metal case. So the signal between the antenna and the receiver (gateway) is blocked by the metal. This will greatly reduce the signal. In such case, we can consider using antenna extend cable to extend the antenna to a better position. 135 135 136 136 137 - 138 138 = 5. Some real-world case = 139 139 140 140 == 5.1 Server reason cause end node has problem on Join. == ... ... @@ -171,7 +171,9 @@ 171 171 [[image:image-20221031233759-3.png]] 172 172 173 173 170 +[[image:image-20221101000006-1.png||height="353" width="931"]] 174 174 175 175 176 176 174 + 177 177