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Author

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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

Content

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45	45	|(% style="width:134px" %)**AS923**|(% style="width:400px" %)14dBm|(% style="width:362px" %)SF=12|(% style="width:102px" %)125Khz
46	46
47	47
48		-
49	49	== 2.2  Adaptive Data Rate (ADR) and set max distance ==
50	50
51	51
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91	91	* (% style="color:#037691" %)**AT+TXP=0**    (%%) ~/~/  Use max power.
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93	93
94		-
95		-
96	96	= 3.  Analyze at the hardware side =
97	97
98	98	== 3.1  Check if the antenna path is good ~-~- For LSn50v2 series end node ==
99	99
100		-
101	101	a) Open Enclosure and Check if the antenna connection to module is good.
102	102
103	103	b) check if the connector match.
104	104
105		-
106	106	[[image:image-20221016081725-1.png||height="426" width="706"]]
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108	108
109		-
110	110	= 4.  Installation Guidelines =
111	111
112	112	== 4.1  Check the use environment ==
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121	121	* No high level radio interferes in the ISM band you use.
122	122	* At least 1 meter above the ground.
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	118	+
124	124	(% style="color:blue" %)**Radio performances are degraded with:**
125	125
126	126	* Obstacles: buildings, trees...
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129	129	* Radio communication are usually killed with bad topographic conditions. It is usually not possible to communicate through a hill, even very small.
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131	131
132		-
133		-
134	134	== 4.2  Improve the Antenna ==
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