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...	...	@@ -26,7 +26,6 @@
26	26	(% class="wikigeneratedid" id="H2.2.Configure" %)
27	27	(% style="color:blue" %)**Configure:**
28	28
29		-
30	30	(% border="1" style="background-color:#f7faff; color:black; width:500px" %)
31	31	|=**A's configuration**|=**B's configuration**
32	32	|AT+GROUPMOD=0|AT+GROUPMOD=0
...	...	@@ -39,6 +39,8 @@
39	39	|AT+DI2TODO2=2 |AT+DI2TODO2=2
40	40	|AT+DI2TORO2=2|AT+DI2TORO2=2
41	41
	41	+
	42	+
42	42	== **2.2  Point To Mult-Point ** ==
43	43
44	44
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47	47
48	48	[[image:image-20220602111219-3.png]]
49	49
	51	+(((
50	50	If the sender does not get the ACK reply from the receiver, it will retransmit up to 4 times, each interval is 6 seconds, and the UplinkCounter of the retransmission will not increase.
	53	+)))
51	51
52	52
53	53	== **2.3 AT command** ==
...	...	@@ -75,7 +75,7 @@
75	75
76	76	(% style="color:#037691" %)**AT+RXSF **(%%)**:**  Get or Set the spreading factor of RX (7 to 12) (default:12)
77	77
78		-(% style="color:#037691" %)**AT+BW **(%%)**:  **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
	81	+(% style="color:#037691" %)**AT+BW **(%%)**:       **Get or Set the bandwidth [0:125khz,1:250khz,2:500khz] (default:0)
79	79
80	80	(% style="color:#037691" %)**AT+CR **(%%)**:        **Get or Set the coding rate [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8] (default:1)
81	81
...	...	@@ -83,7 +83,7 @@
83	83
84	84	(% style="color:#037691" %)**AT+VER **(%%)**:**  Get firmware version number
85	85
86		-(% style="color:#037691" %)**AT+SEND **(%%)**:  **Set Custom sent hex data
	89	+(% style="color:#037691" %)**AT+SEND **(%%)**:   **Set Custom sent hex data
87	87
88	88	(% style="color:#037691" %)**AT+GROUPMOD **(%%)**: **Set or Get the grouping mode of the device (default: 0)
89	89