Changes for page Notes for ChirpStack

Last modified by Xiaoling on 2025/07/31 17:18

From version 247.1
edited by Xiaoling
on 2025/07/31 17:18
Change comment: There is no comment for this version
To version 239.1
edited by Kilight Cao
on 2024/09/23 15:18
Change comment: Uploaded new attachment "image-20240923151814-23.png", version {1}

Summary

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Kilight
Content
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32 32  (((
33 33  (((
34 34  Semtech UDP : **All Model**
35 -Basic Station : [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]], [[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]], [[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]]
36 -
35 +Basic Station : [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] [[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]]
37 37  (% style="color:red" %)**Note** (%%): the firmware needs >[[lgw~~-~~-build-v5.4.1640315898>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/]]  if use the Bais station
38 38  )))
39 39  )))
... ... @@ -190,8 +190,8 @@
190 190  
191 191  (% style="color:blue" %)**Below list the support products and Requirements:**
192 192  
193 -1. LoRaWAN Gateway model: [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[DLOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]], [[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]], [[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]]
194 -1. Firmware version since : [[lgw~~-~~-build-v5.4.1651822913>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Test_Firmware/lgw--build-v5.4.1651822913-20220506-1543/]]
192 +1. LoRaWAN Gateway model: [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] ,[[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]]
193 +1. Firmware version since :[[lgw~~-~~-build-v5.4.1651822913>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Test_Firmware/lgw--build-v5.4.1651822913-20220506-1543/]]
195 195  
196 196  (% style="color:blue" %)**How to set up chirpStack Basic Station**
197 197  
... ... @@ -205,8 +205,10 @@
205 205  
206 206  == 5.2  Add Gateway ==
207 207  
207 +
208 208  [[image:image-20220524164205-10.png]]
209 209  
210 +
210 210  == 5.3  Access the gateway GUI ==
211 211  
212 212  
... ... @@ -262,8 +262,8 @@
262 262  
263 263  (% style="color:blue" %)**Below list the support products and Requirements:**
264 264  
265 -1. LoRaWAN Gateway model: [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]],[[DLOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]], [[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]], [[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]]
266 -1. Firmware version since: [[Chirpstack-Bridge-V3.14.6>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/Chirpstack-gateway-bridge/Chirpstack-Bridge-V3.14.6-Bridge--build-v5.4.1679487778-20230322-2024/||style="background-color: rgb(255, 255, 255);"]]
266 +1. LoRaWAN Gateway model: [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] ,[[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]],[[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]],[[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]],[[DLOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]]
267 +1. Firmware version since: [[Chirpstack-Bridge-V3.14.6>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/Chirpstack-gateway-bridge/Chirpstack-Bridge-V3.14.6-Bridge--build-v5.4.1679487778-20230322-2024/]]
267 267  
268 268  (% style="color:blue" %)**What do you need to prepare**
269 269  
... ... @@ -272,6 +272,7 @@
272 272  
273 273  The following example does not have configuration certificates:
274 274  
276 +
275 275  == 6.1  Configure Packet Forwarder ==
276 276  
277 277  
... ... @@ -374,7 +374,7 @@
374 374  
375 375  (% style="color:blue" %)**Below list the support products and Requirements:**
376 376  
377 -1. LoRaWAN Gateway model: [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]],[[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]],[[DLOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]]
379 +1. LoRaWAN Gateway model: [[LIG16>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/171-lig16.html]], [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]], [[DLOS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/160-dlos8.html]] ,[[LPS8>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/148-lps8.html]],[[LPS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/200-lps8n.html]],[[LG308N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/229-lg308n.html]],[[DLOS8N>>url:https://www.dragino.com/products/lora-lorawan-gateway/item/225-dlos8n.html]]
378 378  1. Firmware version since: [[Chirpstack-Bridge-V4>>https://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/LPS8/Firmware/Release/Chirpstack-gateway-bridge/Chirpstack-Bridge-V4--build-v5.4.1670655072-20221210-1452/]]
379 379  
380 380  (% style="color:blue" %)**What do you need to prepare**
... ... @@ -464,18 +464,25 @@
464 464  
465 465  = 8.  Downlink =
466 466  
467 -== 8.1 Schedule Downlink via Web UI ==
468 468  
470 +=== 8.1 Chirpstack Downlink Note ===
469 469  
470 -=== Select HEX format for downlink ===
471 471  
473 +==== Select HEX format for downlink ====
474 +
475 +
472 472  (% style="color:red" %)**Note: The end node user manual provides HEX format of the downlink commands, so users can directly select HEX format downlink.**
473 473  
478 +
474 474  [[image:image-20231108171112-5.png||height="629" width="1117"]]
475 475  
481 +
476 476  [[image:image-20231108171145-6.png||height="497" width="1101"]]
477 477  
478 478  
485 +
486 +
487 +
479 479  [[image:image-20220531173236-10.png||height="597" width="1215"]]
480 480  
481 481  **Check ChripStack downlink DataRate**
... ... @@ -487,10 +487,10 @@
487 487  **Make sure the RX2DR is the same in the end node**
488 488  
489 489  
490 -== 8.2 Schedule Downlink via API ==
499 +== 8. Loraserver Downlink Note ==
491 491  
492 492  
493 -User can use MQTT to send downlink payload to ChirpStack to perform downstream to LoRaWAN End Node
502 +User can use MQTT to send downlink payload to ChirpStack to perform downstream to LoRaWAN End
494 494  
495 495  (((
496 496  **Below is examples:**
... ... @@ -509,6 +509,7 @@
509 509  (((
510 510  **MQTT Connect to ChirpStack**
511 511  
521 +
512 512  
513 513  )))
514 514  
... ... @@ -536,6 +536,7 @@
536 536  **MQTT Connect to ChirpStack**
537 537  
538 538  
549 +
539 539  (((
540 540  Downlink payload encode javescript code.
541 541  
... ... @@ -600,148 +600,54 @@
600 600  )))
601 601  
602 602  
603 -== 8.3  Add decoder function in Chirpstack for downlink message ==
614 +== 8.4  Add the decode function in Chirpstack for the payload ==
604 604  
605 605  
617 +User enters the payload code according to the steps.
606 606  
607 -= 9.  Chirpstack Multicast Configuration =
619 +Add the node device decoder you are using. The decoder for each node device is different. The decoder is found in this link: **[[decoder for dragino end node>>https://github.com/dragino/dragino-end-node-decoder]]**
608 608  
609 -== 9.1  Introduction ==
621 +[[image:image-20220531173754-15.png||height="474" width="1334"]]
610 610  
611 -ChirpStack has support for creating multicast-groups to which devices can be assigned. When enqueueing a downlink payload for a multicast-group, ChirpStack will analyze which gateways must be used for broadcasting to cover the complete multicast-group. This means that potentially, a single multicast downlink payload will be emitted multiple times.
612 612  
613 -Multicast can be used for the following device-classes:
624 +[[image:image-20220531173856-16.png]]
614 614  
615 -* Class-B
616 -* Class-C
617 617  
618 -== 9.2  Example to configure chirpstack Multicast ==
627 +[[image:image-20220531174120-20.png]]
619 619  
620 -This section illustrates how to configure ChirpStack Multicast. Below is the network structure, we use our LPS8v2 as the LoRaWAN gateway and two SN50v3-LB as the LoRaWAN end-node here.
629 +[[image:image-20220531174046-19.png]]
621 621  
622 -[[image:image-20240923105725-1.png]]
623 623  
632 += 9.  Chirpstack Multicast Configuration =
624 624  
625 -This example assumes that the user already has the prerequisites:
626 626  
627 -* (% style="color:blue" %)**SN50v3-LB Software Location:   **(%%)**[[SN50v3-LB_protocol_008(AU915).bin>>attach:https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-LB/#H3.ConfigureSN50v3-LB2FLS||target="_blank"]] .**Users need to flash them with the firmware support Multicast.
628 -* (% style="color:blue" %)**SN50v3-LB Configure:   **(%%)Enable CLASS C and DISFCNTCHECK(The downlink fcnt is not compared with the fcnt of the node).
635 +== 9.1  Introduction ==
629 629  
630 -(% class="wikigeneratedid" %)
631 - **AT command:** (% style="color:blue" %)**AT+CLASS=C**
637 +ChirpStack has support for creating multicast-groups to which devices can be assigned. When enqueueing a downlink payload for a multicast-group, ChirpStack will analyze which gateways must be used for broadcasting to cover the complete multicast-group. This means that potentially, a single multicast downlink payload will be emitted multiple times.
632 632  
633 -(% class="wikigeneratedid" %)
634 - (% style="color:blue" %)**AT+DISFCNTCHECK=1**
639 +Multicast can be used for the following device-classes:
635 635  
636 -(% class="wikigeneratedid" %)
637 -For details on how to configure the SN50v3-LB, please refer to the link:** [[Configure SN50v3-LB>>https://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/SN50v3-LB/#H3.ConfigureSN50v3-LB2FLS]]**
641 +* Class-B
642 +* Class-C
638 638  
639 -* (% style="color:blue" %)**Chirpstack Configuration: **(%%)LPS8v2 gateway and SN50v3-LB register on ChirpStack server already
644 +== 9.2  Example to configure chirpstack Multicast ==
640 640  
641 -Register LPS8v2 gateway to Chirpstack. See section :[[https:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Notes%20for%20ChirpStack/#H4.A0SemtechUDPforChirpStackv4>>https://wiki.dragino.com/xwiki/bin/view/Main/Notes%20for%20ChirpStack/#H4.A0SemtechUDPforChirpStackv4]]
642 642  
643 -Register SN50v3-LB to Chirpstack. See section :[[https:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Notes%20for%20ChirpStack/#H2.A0Nodeusageintroduction>>https://wiki.dragino.com/xwiki/bin/view/Main/Notes%20for%20ChirpStack/#H2.A0Nodeusageintroduction]]
647 +This section illustrates how to configure ChirpStack Multicast. Below is the network structure, we use our LPS8v2 as the LoRaWAN gateway and SN50v3-LB as the LoRaWAN end-node here.
644 644  
649 +[[image:image-20240923105725-1.png]]
645 645  
646 -=== Step 1. Create the multicast group ===
651 +The LPS8V2 is already set to connect to Chirpstack. So what we need to do now is only configure register these devices to Chirpstack:
647 647  
648 648  
649 -Create the multicast group on the corresponding **Application~-~->multicast groups~-~->Add multicast-group** interface, For example, multicast_test01_au915
654 +=== Step 1. Create the multicast group ===
650 650  
651 -[[image:image-20240923141847-3.png||height="620" width="1207"]]
652 652  
653 653  
654 -Enter the Multicast address,Multicast network session key,Multicast application session key.
658 += 9.  Multiply Uplink in ChirpStack =
655 655  
656 -Use the default LoRaWAN settings, as below:
657 657  
658 -* EU868: 869525000hz, DR0
659 -
660 -* US915: 923300000hz, DR8
661 -
662 -* CN470: 505300000hz, DR0
663 -
664 -* AU915: 923300000hz, DR8
665 -
666 -* AS923: 923200000hz, DR2
667 -
668 -* KR920: 921900000hz, DR0
669 -
670 -* IN865: 866550000hz, DR2
671 -
672 -* RU864: 869100000hz, DR0
673 -
674 -Group type: **Class-C**
675 -
676 -Class-C scheduling type : **Delay**
677 -
678 -[[image:image-20240923142446-5.png||height="720" width="1208"]]
679 -
680 -
681 -=== Step 2. Add gateways and devices to the multicast group ===
682 -
683 -
684 -Select a gateway on the "**Gateways**" screen, click "**selected gateways"**, and click "**Add to multicast-group**" to add the gateway to the corresponding multicast group, for example, **multicast_test01_au915**.
685 -
686 -[[image:image-20240923144335-6.png||height="619" width="1209"]]
687 -
688 -[[image:image-20240923144418-7.png||height="572" width="1206"]]
689 -
690 -
691 -On the **Application->Devices** interface, select two SN50v3-LB nodes registered with multicast support, and then click "**Selected devices**". and click "**Add to multicast-group**" to add the node to the corresponding multicast group
692 -
693 -[[image:image-20240923144749-9.png||height="623" width="1211"]]
694 -
695 -
696 -Access the multicast group to check whether two SN50V3-LBs and gateways are added successfully
697 -
698 -[[image:image-20240923145148-10.png||height="601" width="1218"]]
699 -
700 -
701 -=== Step 3. Use the API for multicast Downlink ===
702 -
703 -
704 -To use API Downlink, user first need to generate an API key
705 -
706 -[[image:image-20240923145624-18.png||height="429" width="1211"]]
707 -
708 -[[image:image-20240923145520-16.png||height="422" width="1212"]]
709 -
710 -
711 -For example:**[[https:~~/~~/www.chirpstack.io/docs/chirpstack/api/index.html>>url:https://www.chirpstack.io/docs/chirpstack/api/index.html]]**
712 -
713 -[[image:image-20240923145953-21.png||height="808" width="1222"]]
714 -
715 -
716 -Users can access the Linux console of the gateway via SSH, and then use the curl command to multicast Downlink
717 -
718 -The format is as follows:
719 -
720 -(% class="box infomessage" %)
721 721  (((
722 -curl -X POST 'http:~/~/**Chirpstack_Server_Address**:8090/api/multicast-groups/**Multicast_Groups_ID**/queue' -H "Content-Type: application/json" -H "Authorization: Bearer **eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJhdWQiOiJjaGlycHN0YWNrIiwiaXNzIjoiY2hpcnBzdGFjayIsInN1YiI6IjM3YmRiNzBjLTNjODgtNDFjMi04YmQ2LTgyMDI4ZjdkNzY3NyIsInR5cCI6ImtleSJ9.p1xvRP1PAdwLnLAJn9w6ef612KM8oPZSa_2v4UYPV0w**" -d '{
723 - "queueItem": {
724 - "data": "EjRWeA==",
725 - "fCnt": 0,
726 - "fPort": 123
727 - }
728 -}'
729 -)))
730 -
731 -In the command,eyJ........._2v4UYPV0w is the API key, which can be obtained from the Chirpstack server and the data format is base64,
732 -
733 -
734 -=== Result ===
735 -
736 -Connecting to the SN50v3-LB using the serial USB-TTL port can check that two SN50v3-LBs are receiving Downlink at the same time
737 -
738 -[[image:image-20240923151814-23.png||height="563" width="1255"]]
739 -
740 -
741 -= 10.  Multiply Uplink in ChirpStack =
742 -
743 -
744 -(((
745 745  nbtrans field is the value to determine the re-transmission time for unconfirmed uplink data.
746 746  )))
747 747  
... ... @@ -781,7 +781,7 @@
781 781  [[image:image-20220601102430-1.png||height="508" width="1120"]]
782 782  
783 783  
784 -== 10.1  Solution ==
701 +== 9.1  Solution ==
785 785  
786 786  
787 787  This example uses the Windows version as a template, other versions can refer to this. Similiar reference: [[https:~~/~~/confluence.alitecs.de/plugins/servlet/mobile?contentId=79790102#content/view/79790102>>url:https://confluence.alitecs.de/plugins/servlet/mobile?contentId=79790102#content/view/79790102]]
... ... @@ -900,7 +900,7 @@
900 900  Finish.
901 901  
902 902  
903 -= 11.  How to store/get all data traffic for a specific sensor, including raw payload, and uplink/ downlink history. =
820 += 10.  How to store/get all data traffic for a specific sensor, including raw payload, and uplink/ downlink history. =
904 904  
905 905  
906 906  All data is published to the MQTT topics. if you want to store/get the data, you would have to create an MQTT handler and store the data yourself.
... ... @@ -949,15 +949,14 @@
949 949  [[image:image-20221012173639-1.png||height="273" width="1206"]]
950 950  
951 951  
952 -= 12.  How to use Chirpstack API to batch register Sensor Node/Gateway in Chistapstack Server =
869 += 11.  How to use Chirpstack API to batch register Sensor Node/Gateway in Chistapstack Server =
953 953  
954 -
955 955  The following example is based on the built-in ChirpStack server for LPS8V2
956 956  
957 957  [[image:image-20231201174640-1.png||height="584" width="1148"]]
958 958  
959 959  
960 -== **12.1 Generate API Tokens** ==
876 +== **11.1 Generate API Tokens** ==
961 961  
962 962  Access the built-in chirpstack , click "**API Key**" and "**Add API Key**".
963 963  
... ... @@ -970,7 +970,7 @@
970 970  [[image:image-20231204104802-1.png]]
971 971  
972 972  
973 -== **12.2 Template file** ==
889 +== **11.2 Template file** ==
974 974  
975 975  
976 976  Click on **"Template File Download"**, the user will download a **register.csv** template file,
... ... @@ -991,8 +991,9 @@
991 991  [[image:image-20231204112107-10.png||height="621" width="1203"]]
992 992  
993 993  
994 -== **12.3 Batch Register** ==
995 995  
911 +== **11.3 Batch Register** ==
912 +
996 996  [[image:image-20231204113136-11.png||height="362" width="1062"]]
997 997  
998 998  
... ... @@ -1003,9 +1003,10 @@
1003 1003  [[image:image-20231204113237-13.png||height="558" width="1081"]]
1004 1004  
1005 1005  
1006 -= 13.  Example: Use Local Server ChirpStack and Node-Red in LPS8v2 =
1007 1007  
924 += 12.  Example: Use Local Server ChirpStack and Node-Red in LPS8v2 =
1008 1008  
926 +
1009 1009  LPS8v2 includes a local ChirpStack Server and Node-Red. This example shows how to configure LHT65N to use with the local Node-Red server. This example assumes users already have:
1010 1010  
1011 1011  * LHT65N register on LPS8v2 Built-In ChirpStack server already
... ... @@ -1014,7 +1014,7 @@
1014 1014  Below are the steps to plot the sensor data on LPS8v2 Node-Red.
1015 1015  
1016 1016  
1017 -== 13.1 Link Node-Red to Local ChirpStack ==
935 +== 12.1 Link Node-Red to Local ChirpStack ==
1018 1018  
1019 1019  
1020 1020  Users can download the Node-Red decoder from this link and import it into the Node-Red platform:  **[[attach:LHT65N-ChirpStack-node-red.json||target="_blank"]]**
... ... @@ -1035,6 +1035,7 @@
1035 1035  [[image:image-20230527143923-1.png||height="588" width="1132"]]
1036 1036  
1037 1037  
956 +
1038 1038  (% style="color:blue" %)**2. Enter the MQTT configuration information**
1039 1039  
1040 1040  [[image:image-20230527144206-2.png||height="590" width="1136"]]
... ... @@ -1047,7 +1047,7 @@
1047 1047  [[image:http://wiki.dragino.com/xwiki/bin/download/Main/Notes%20for%20TTN/WebHome/image-20220914140918-5.png?width=1121&height=602&rev=1.1||alt="image-20220914140918-5.png"]]
1048 1048  
1049 1049  
1050 -== 13.2 Check result. ==
969 +== 12.2 Check result. ==
1051 1051  
1052 1052  
1053 1053  Users can check logs by adding debug.
... ... @@ -1057,9 +1057,9 @@
1057 1057  [[image:image-20230529150923-1.png||height="424" width="1118"]]
1058 1058  
1059 1059  
1060 -= 14.  Trouble Shooting =
979 += 13.  Trouble Shooting =
1061 1061  
1062 -== 14.1  MIC Mismatch or MIC Failed ==
981 +== 13.1  MIC Mismatch or MIC Failed ==
1063 1063  
1064 1064  
1065 1065  (((
... ... @@ -1070,17 +1070,17 @@
1070 1070  Under normal circumstances, users need to change the APPKEY to solve this problem.
1071 1071  
1072 1072  
1073 -== 14.2  The node is very close to the gateway, but the signal is poor ==
992 +== 13.2  The node is very close to the gateway, but the signal is poor ==
1074 1074  
1075 1075  
1076 1076  If you are using US915 or AU915, you found the frequency points of different subband ranges in your uplink
1077 1077  
1078 1078  Like that:Both 905.1Mhz and 902.3Mhz appear on uplink
1079 - But they belong to Subband1 and Subband2 of US915 respectively
998 + But they belong to Subband1 and Subband2 of US915 respectively
1080 1080  
1081 1081  Cause: The server and the gateway use different frequency bands (the server uses Subband1, and the gateway uses Subband2)
1082 1082  
1083 - In server side, it shows the frequency is 905.1Mhz, which is sub-band2. But the RSSI is very low, Because this is not a signal in 905.1Mhz, it is on 902.3Mhz, the signal is too strong and appear a noise in 905.1Mhz.
1002 + In server side, it shows the frequency is 905.1Mhz, which is sub-band2. But the RSSI is very low, Because this is not a signal in 905.1Mhz, it is on 902.3Mhz, the signal is too strong and appear a noise in 905.1Mhz.
1084 1084  
1085 1085  How to check the frequency band used by the server:
1086 1086  
... ... @@ -1099,7 +1099,7 @@
1099 1099  **Note: lorawan's protocol link——[[LoRaWAN® Regional Parameters v1.0.3revA (lora-alliance.org)>>url:https://resources.lora-alliance.org/document/lorawan-regional-parameters-v1-0-3reva]]**
1100 1100  
1101 1101  
1102 -== 14.3  ChirpStackv4 node device displays "UPLINK_F_CNT_RETRANSMISSION" ==
1021 +== 13.3  ChirpStackv4 node device displays "UPLINK_F_CNT_RETRANSMISSION" ==
1103 1103  
1104 1104  
1105 1105  This is because the node's packets are retransmitted, and the Fcnt of these packets is the same.
... ... @@ -1130,7 +1130,7 @@
1130 1130  [[image:image-20240717092428-4.jpeg]]
1131 1131  
1132 1132  
1133 -== 14.4  How to get the log information of the node? ==
1052 +== 13.4  How to get the log information of the node? ==
1134 1134  
1135 1135  
1136 1136  ~1. Get information about a single node.
... ... @@ -1156,6 +1156,7 @@
1156 1156  [[image:image-20240117175009-3.png||height="524" width="1076"]]
1157 1157  
1158 1158  
1078 +
1159 1159  After the data collection is completed, you can send this file directly to our technical support personnel for analysis.
1160 1160  
1161 1161  
SN50v3-LB_协议008(AU915)(1).bin
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