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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

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7	7	In our product, the 868Mhz and 915Mhz modules use the SX1276/SX1262 HF Radio path, the difference of these two modules are 3 inductors that can let the module work best in 868MHz or 915Mhz.
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9		-If user updates the firmware to support different regions. the difference will be the Radio performance which is not significant between 868Mhz and 915Mhz.
	9	+If user updates the firmware to support different regions. the difference will be the Radio performance which is not significant between 868Mhz and 915Mhz. Around (0.5~~1 dB)
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13	13	== 1.2  For LoRaWAN Gateway: NO ==
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16		-In LoRaWAN Gateway design, a bandpass filter is used,
	16	+In LoRaWAN Gateway design, a bandpass filter is used to reduce the noise of unwant band to the minimize level.
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18	18	* For 868Mhz hardware version, the range for this filter is  : 863Mhz ~~ 870Mhz. A signal on other frequencies will be considered as noise and high decreased.
19	19	* For 915Mhz hardware version,  the range for this filter is  : 902Mhz ~~ 928Mhz. A signal on other frequencies will be considered as noise and high decreased.
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21	21	So use a 868Mhz gateway hardware for 915 (or adverse) will see very poor radio performance (distance maybe only several meters).
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	23	+Below is the filter for 868 as example, There will be more than -60dB decrease in 915Mhz frequency.
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	25	+[[image:image-20230325093133-1.png||height="461" width="730"]]
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	27	+
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25	25	= 2.  I have a Dragino LoRa product with 868Mhz, Can i use it in 433Mhz? =
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	1	+XWiki.Edwin

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