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

Summary

Details

Page properties
Content
... ... @@ -37,15 +37,16 @@
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="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" %)(((
42 42  **Spreading Factor(Higher SF can transmit further)**
43 -)))|(% style="background-color:#d9e2f3; width:102px" %)**Band Width**
43 +)))|(% style="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 +
49 49  == 2.2  Adaptive Data Rate (ADR) and set max distance ==
50 50  
51 51  
... ... @@ -59,9 +59,9 @@
59 59  
60 60  (% style="color:#037691" %)**AT+ADR=0**
61 61  
62 -(% style="color:#037691" %)**AT+DR=0  **~/~/(%%) Use longest distance modulation
63 +(% style="color:#037691" %)**AT+DR=0**
63 63  
64 -(% style="color:#037691" %)**AT+TXP=0   **(%%)~/~/Use max power   For EU868, max power can be is AT+TXP=50
65 +(% style="color:#037691" %)**AT+TXP=0**
65 65  
66 66  
67 67  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.
... ... @@ -85,10 +85,11 @@
85 85  Below are the settings for longest distance transmission. ( will reduce battery life)
86 86  
87 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
89 +* (% style="color:#037691" %)**AT+DR=  0**     (%%)~/~/  Use the smallest DR
90 +* (% style="color:#037691" %)**AT+TXP=0**    (%%) ~/~/  Use max power
90 90  
91 91  
93 +
92 92  = 3.  Analyze at the hardware side =
93 93  
94 94  == 3.1  Check if the antenna path is good ~-~- For LSn50v2 series end node ==
... ... @@ -124,6 +124,7 @@
124 124  * Radio communication are usually killed with bad topographic conditions. It is usually not possible to communicate through a hill, even very small.
125 125  
126 126  
129 +
127 127  == 4.2  Improve the Antenna ==
128 128  
129 129  
Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0