<
From version < 20.2 >
edited by Xiaoling
on 2023/02/08 15:44
To version < 21.3 >
edited by Xiaoling
on 2023/04/14 11:03
>
Change comment: There is no comment for this version

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... ... @@ -37,16 +37,15 @@
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:#ffffcc; color:black; width:1002px" %)
41 -|(% style="width:134px" %)**Frequency band**|(% style="width:400px" %)**Output Power in LoRa Module (consider 2dB antenna)**|(% style="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="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
47 47  
48 48  
49 -
50 50  == 2.2  Adaptive Data Rate (ADR) and set max distance ==
51 51  
52 52  
... ... @@ -60,9 +60,9 @@
60 60  
61 61  (% style="color:#037691" %)**AT+ADR=0**
62 62  
63 -(% style="color:#037691" %)**AT+DR=0**
62 +(% style="color:#037691" %)**AT+DR=0  **~/~/(%%) Use longest distance modulation
64 64  
65 -(% style="color:#037691" %)**AT+TXP=0**
64 +(% style="color:#037691" %)**AT+TXP=0   **(%%)~/~/Use max power   For EU868, max power can be is AT+TXP=50
66 66  
67 67  
68 68  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.
... ... @@ -86,11 +86,10 @@
86 86  Below are the settings for longest distance transmission. ( will reduce battery life)
87 87  
88 88  * (% style="color:#037691" %)**AT+ADR=0**     (%%)~/~/  Disable ADR
89 -* (% style="color:#037691" %)**AT+DR=  0**     (%%)~/~/  Use the smallest DR
90 -* (% style="color:#037691" %)**AT+TXP=0**    (%%) ~/~/  Use max power
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
91 91  
92 92  
93 -
94 94  = 3.  Analyze at the hardware side =
95 95  
96 96  == 3.1  Check if the antenna path is good ~-~- For LSn50v2 series end node ==
... ... @@ -126,7 +126,6 @@
126 126  * Radio communication are usually killed with bad topographic conditions. It is usually not possible to communicate through a hill, even very small.
127 127  
128 128  
129 -
130 130  == 4.2  Improve the Antenna ==
131 131  
132 132  
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