<
From version < 21.2 >
edited by Xiaoling
on 2023/04/14 11:02
To version < 21.4 >
edited by Xiaoling
on 2023/04/14 11:04
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -37,14 +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="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 +
49 +
48 48  == 2.2  Adaptive Data Rate (ADR) and set max distance ==
49 49  
50 50  
... ... @@ -58,9 +58,9 @@
58 58  
59 59  (% style="color:#037691" %)**AT+ADR=0**
60 60  
61 -(% style="color:#037691" %)**AT+DR=0  **~/~/(%%) Use longest distance modulation
63 +(% style="color:#037691" %)**AT+DR=0  **~/~/(%%) Use longest distance modulation
62 62  
63 -(% 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   **(%%)~/~/ Use max power   For EU868, max power can be is AT+TXP=50
64 64  
65 65  
66 66  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.
... ... @@ -83,10 +83,12 @@
83 83  
84 84  Below are the settings for longest distance transmission. ( will reduce battery life)
85 85  
86 -* (% style="color:#037691" %)**AT+ADR=0**     (%%)~/~/  Disable ADR
87 -* (% style="color:#037691" %)**AT+DR=  0**     (%%)~/~/  Use the smallest DR,the longest distance modulation
88 +* (% style="color:#037691" %)**AT+ADR=0**  (%%)~/~/  Disable ADR
89 +* (% 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  
92 +
93 +
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 +121,8 @@
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  
128 +
129 +
124 124  == 4.2  Improve the Antenna ==
125 125  
126 126  
Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0