<
From version < 21.2 >
edited by Xiaoling
on 2023/04/14 11:02
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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... ... @@ -37,14 +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:#F2F2F2; width:1002px" %)
41 -|(% style="width:134px;background-color:#D9E2F3" %)**Frequency band**|(% style="width:400px;background-color:#D9E2F3" %)**Output Power in LoRa Module (consider 2dB antenna)**|(% style="width:362px;background-color:#D9E2F3" %)(((
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;background-color:#D9E2F3" %)**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 48  == 2.2  Adaptive Data Rate (ADR) and set max distance ==
49 49  
50 50  
... ... @@ -87,6 +87,7 @@
87 87  * (% style="color:#037691" %)**AT+DR=  0**     (%%)~/~/  Use the smallest DR,the longest distance modulation
88 88  * (% style="color:#037691" %)**AT+TXP=0**    (%%) ~/~/  Use max power   For EU868, max power can be is AT+TXP=50
89 89  
91 +
90 90  = 3.  Analyze at the hardware side =
91 91  
92 92  == 3.1  Check if the antenna path is good ~-~- For LSn50v2 series end node ==
... ... @@ -121,6 +121,7 @@
121 121  * High ISM band usage by other technologies.
122 122  * Radio communication are usually killed with bad topographic conditions. It is usually not possible to communicate through a hill, even very small.
123 123  
126 +
124 124  == 4.2  Improve the Antenna ==
125 125  
126 126  
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