Changes for page How to improve LoRaWAN distance
Last modified by Xiaoling on 2024/08/16 11:25
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. Xiaoling1 +XWiki.Edwin - Content
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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=" 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" %)(((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" %)((( 42 42 **Spreading Factor(Higher SF can transmit further)** 43 -)))|(% style="background-color:# D9E2F3;color:#0070C0;width:102px" %)**Band Width**43 +)))|(% style="background-color:#d9e2f3; 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 ... ... @@ -84,10 +84,11 @@ 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** (% style="color:#037691" %)**(downlinkpayload: 2200FFFF)**88 -* (% style="color:#037691" %)**AT+DR=0** (% style="color:#037691" %)**(downlinkpayload: 220000FF)**89 -* (% style="color:#037691" %)**AT+TXP=0** (% style="color:#037691" %)** (downlinkpayload: 22000000)**87 +* (% style="color:#037691" %)**AT+ADR=0** (%%)~/~/ Disable ADR 88 +* (% style="color:#037691" %)**AT+DR= 0** (%%)~/~/ Use the smallest DR,the longest distance modulation 89 +* (% style="color:#037691" %)**AT+TXP=0** (%%) ~/~/ Use max power For EU868, max power can be is AT+TXP=50 90 90 91 + 91 91 == 2.5 Debug in Software == 92 92 93 93 Dragino can help client to debug the software for the distance issue. In the case , please send us below info: ... ... @@ -96,6 +96,7 @@ 96 96 ** RSSI, DataRate, FCNT, Frequency. 97 97 ** MIC command detail & Payload detail. 98 98 100 + 99 99 = 3. Analyze at the hardware side = 100 100 101 101 == 3.1 Check if the antenna path is good ~-~- For LSN50v2 series end node == ... ... @@ -130,6 +130,7 @@ 130 130 * High ISM band usage by other technologies. 131 131 * Radio communication are usually killed with bad topographic conditions. It is usually not possible to communicate through a hill, even very small. 132 132 135 + 133 133 == 4.2 Improve the Antenna == 134 134 135 135