Changes for page How to improve LoRaWAN distance
Last modified by Xiaoling on 2024/08/16 11:25
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... ... @@ -92,11 +92,26 @@ 92 92 93 93 94 94 95 -= 3. Installation Guidelines = 96 96 97 -= =3.1Checktheuseenvironment==96 += 3. Analyze at the hardware side = 98 98 98 +== 3.1 Check if the antenna path is good ~-~- For LSn50v2 series end node == 99 99 100 + 101 +a) Open Enclosure and Check if the antenna connection to module is good. 102 + 103 +b) check if the connector match. 104 + 105 + 106 +[[image:image-20221016081725-1.png||height="426" width="706"]] 107 + 108 + 109 + 110 += 4. Installation Guidelines = 111 + 112 +== 4.1 Check the use environment == 113 + 114 + 100 100 First , User should notice: Radio link quality and performances are highly dependent of the environment. 101 101 102 102 (% style="color:blue" %)**Better performances can be reached with:** ... ... @@ -106,8 +106,6 @@ 106 106 * No high level radio interferes in the ISM band you use. 107 107 * At least 1 meter above the ground. 108 108 109 - 110 - 111 111 (% style="color:blue" %)**Radio performances are degraded with:** 112 112 113 113 * Obstacles: buildings, trees... ... ... @@ -117,16 +117,17 @@ 117 117 118 118 119 119 120 -== 3.2 Improve the Antenna == 121 121 134 +== 4.2 Improve the Antenna == 122 122 136 + 123 123 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. 124 124 125 125 126 126 127 -= 4. Some real-world case =141 += 5. Some real-world case = 128 128 129 -== 4.1 Server reason cause end node has problem on Join. ==143 +== 5.1 Server reason cause end node has problem on Join. == 130 130 131 131 132 132 In one case, the customer is using AWS IoT Core and gateway to connect to AWS via Basic Station Connection, Frequency Band is AU915 sub-band 2. For some unknown reason, AWS always set downlink power to 0dBm, which cause the gateway only emit a very low power and lead to a short distance for sensor.
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