Changes for page How to improve LoRaWAN distance
Last modified by Xiaoling on 2024/08/16 11:25
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... ... @@ -37,10 +37,10 @@ 37 37 38 38 **End node actually value when TXP=0 and DR=0** 39 39 40 -(% border="1.5" cellspacing=" 4" style="background-color:#f2f2f2; width:1002px" %)41 -|(% style="background-color:# d9e2f3; width:134px" %)**Frequency band**|(% style="background-color:#d9e2f3; width:400px" %)**Output Power in LoRa Module (consider 2dB antenna)**|(% style="background-color:#d9e2f3; width:362px" %)(((40 +(% border="1.5" cellspacing="3" style="background-color:#f2f2f2; width:1002px" %) 41 +|(% style="background-color:#D9E2F3;color:#0070C0; width:134px" %)**Frequency band**|(% style="background-color:#D9E2F3;color:#0070C0; width:400px" %)**Output Power in LoRa Module (consider 2dB antenna)**|(% style="background-color:#D9E2F3;color:#0070C0; width:362px" %)((( 42 42 **Spreading Factor(Higher SF can transmit further)** 43 -)))|(% style="background-color:# d9e2f3; width:102px" %)**Band Width**43 +)))|(% style="background-color:#D9E2F3;color:#0070C0; width:102px" %)**Band Width** 44 44 |(% style="width:134px" %)**EU868**|(% style="width:400px" %)14dBm|(% style="width:362px" %)SF=12|(% style="width:102px" %)125Khz 45 45 |(% style="width:134px" %)**US915**|(% style="width:400px" %)20 or 22 dBm (depends on max output of module)|(% style="width:362px" %)SF=10|(% style="width:102px" %)125Khz 46 46 |(% style="width:134px" %)**AS923**|(% style="width:400px" %)14dBm|(% style="width:362px" %)SF=12|(% style="width:102px" %)125Khz ... ... @@ -84,11 +84,10 @@ 84 84 85 85 Below are the settings for longest distance transmission. ( will reduce battery life) 86 86 87 -* (% style="color:#037691" %)**AT+ADR=0** (%%)~/~/ Disable ADR 88 -* (% style="color:#037691" %)**AT+DR= 89 -* (% style="color:#037691" %)**AT+TXP=0** (%%) 87 +* (% style="color:#037691" %)**AT+ADR=0** (%%)~/~/ Disable ADR (% style="color:#037691" %)**(downlinkpayload: 2200FFFF)** 88 +* (% style="color:#037691" %)**AT+DR=0** (%%)~/~/ Use the smallest DR,the longest distance modulation (% style="color:#037691" %)**(downlinkpayload: 220000FF)** 89 +* (% style="color:#037691" %)**AT+TXP=0** (%%)~/~/ Use max power For EU868, max power can be is AT+TXP=50 (% style="color:#037691" %)** (downlinkpayload: 22000000)** 90 90 91 - 92 92 == 2.5 Debug in Software == 93 93 94 94 Dragino can help client to debug the software for the distance issue. In the case , please send us below info: ... ... @@ -97,7 +97,6 @@ 97 97 ** RSSI, DataRate, FCNT, Frequency. 98 98 ** MIC command detail & Payload detail. 99 99 100 - 101 101 = 3. Analyze at the hardware side = 102 102 103 103 == 3.1 Check if the antenna path is good ~-~- For LSN50v2 series end node == ... ... @@ -132,7 +132,6 @@ 132 132 * High ISM band usage by other technologies. 133 133 * Radio communication are usually killed with bad topographic conditions. It is usually not possible to communicate through a hill, even very small. 134 134 135 - 136 136 == 4.2 Improve the Antenna == 137 137 138 138