<
From version < 17.1 >
edited by Edwin Chen
on 2022/11/01 00:00
To version < 18.1 >
edited by Edwin Chen
on 2022/11/01 00:00
>
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44 44  |(% 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
45 45  |(% style="width:134px" %)**AS923**|(% style="width:400px" %)14dBm|(% style="width:362px" %)SF=12|(% style="width:102px" %)125Khz
46 46  
47 -
48 48  == 2.2  Adaptive Data Rate (ADR) and set max distance ==
49 49  
50 50  
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90 90  * (% style="color:#037691" %)**AT+TXP=0**    (%%) ~/~/  Use max power.
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 ==
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127 127  * Radio communication are usually killed with bad topographic conditions. It is usually not possible to communicate through a hill, even very small.
128 128  
129 129  
130 -
131 131  == 4.2  Improve the Antenna ==
132 132  
133 133  
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171 171  [[image:image-20221031233759-3.png]]
172 172  
173 173  
171 +[[image:image-20221101000006-1.png||height="353" width="931"]]
174 174  
175 175  
176 176  
177 -
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