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...	...	@@ -994,7 +994,7 @@
994	994
995	995	(% style="color:#037691" %)**Downlink Command: AT+INTMOD**
996	996
997		-[[image:image-20220610174917-9.png]]
	997	+[[image:image-20220610174836-8.png]]
998	998
999	999
1000	1000	(% style="color:#037691" %)**Downlink Command: 0x06**
...	...	@@ -1008,44 +1008,49 @@
1008	1008
1009	1009
1010	1010
1011		-
1012	1012	= 4.  FAQ =
1013	1013
1014		-== 4.1  What is the frequency plan for LDDS75? ==
	1013	+== 4.1  How to change the LoRa Frequency Bands/Region ==
1015	1015
1016		-LDDS75 use the same frequency as other Dragino products. User can see the detail from this link:  [[Introduction>>doc:Main.End Device Frequency Band.WebHome||anchor="H1.Introduction"]]
1017		-
1018		-
1019		-
1020		-== 4.2  How to change the LoRa Frequency Bands/Region ==
1021		-
1022	1022	You can follow the instructions for [[how to upgrade image>>||anchor="H2.8A0200BFirmwareChangeLog"]].
1023	1023	When downloading the images, choose the required image file for download. ​
1024	1024
1025	1025
	1019	+= 5.  Trouble Shooting =
1026	1026
1027		-== 4.3  Can I use LDDS75 in condensation environment? ==
	1021	+== 5.1  AT Commands input doesn’t work ==
1028	1028
1029		-LDDS75 is not suitable to be used in condensation environment. Condensation on the LDDS75 probe will affect the reading and always got 0.
1030	1030
	1024	+(((
	1025	+In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
	1026	+)))
1031	1031
1032	1032
1033		-= 5.  Trouble Shooting =
	1029	+== 5.2  Significant error between the output distant value of LiDAR and actual distance ==
1034	1034
1035		-== 5.1  Why I can’t join TTN V3 in US915 / AU915 bands? ==
1036	1036
1037		-It is due to channel mapping. Please see below link:  [[Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1032	+(((
	1033	+(% style="color:blue" %)**Cause ①**(%%)**：**Due to the physical principles of The LiDAR probe, the above phenomenon is likely to occur if the detection object is the material with high reflectivity (such as mirror, smooth floor tile, etc.) or transparent substance (such as glass and water, etc.)
	1034	+)))
1038	1038
	1036	+(((
	1037	+Troubleshooting: Please avoid use of this product under such circumstance in practice.
	1038	+)))
1039	1039
1040		-== 5.2  AT Command input doesn't work ==
	1040	+(((
	1041	+
	1042	+)))
1041	1041
1042		-In the case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while press the send key, user need to add ENTER in their string.
	1044	+(((
	1045	+(% style="color:blue" %)**Cause ②**(%%)**: **The IR-pass filters are blocked.
	1046	+)))
1043	1043
1044	1044	(((
1045		-
	1049	+Troubleshooting: please use dry dust-free cloth to gently remove the foreign matter.
1046	1046	)))
1047	1047
1048	1048
	1053	+
1049	1049	= 6.  Order Info =
1050	1050
1051	1051
...	...	@@ -1068,6 +1068,7 @@
1068	1068	* (% style="color:red" %)**4**(%%): 4000mAh battery
1069	1069	* (% style="color:red" %)**8**(%%): 8500mAh battery
1070	1070
	1076	+
1071	1071	= 7. ​ Packing Info =
1072	1072
1073	1073
...	...	@@ -1082,6 +1082,7 @@
1082	1082	* Package Size / pcs : cm
1083	1083	* Weight / pcs : g
1084	1084
	1091	+
1085	1085	= 8.  ​Support =
1086	1086
1087	1087	* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.