Issue link: https://read.uberflip.com/i/1428362
LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 40 of 55 The authors reserve the right to change specifications without notice. EIRP refers to the Equivalent Isotropically Radiated Power, which is the radiated output 1051 power referenced to an isotropic antenna radiating power equally in all directions and whose 1052 gain is expressed in dBi. 1053 By default Max EIRP shall be 16dBm.The Max EIRP can be modified by the network server 1054 through the TxParamSetupReq MAC command and should be used by both the end- 1055 device and the network server once TxParamSetupReq is acknowledged by the device via 1056 TxParamSetupAns, 1057 1058 2.7.4 AS923 JoinAccept CFList 1059 The AS923 LoRaWAN implements an optional channel frequency list (CFlist) of 16 octets in 1060 the JoinAccept message. 1061 In this case the CFList is a list of five channel frequencies for the channels three to seven 1062 whereby each frequency is encoded as a 24 bits unsigned integer (three octets). All these 1063 channels are usable for DR0 to DR5 125 KHz LoRa modulation. 1064 Size (bytes) 3 3 3 3 3 1 CFList Freq Ch3 Freq Ch4 Freq Ch5 Freq Ch6 Freq Ch7 RFU The actual channel frequency in Hz is 100 x frequency whereby values representing 1065 frequencies below 100 MHz are reserved for future use. This allows setting the frequency of 1066 a channel anywhere between 915 and 928MHz in 100 Hz steps. Unused channels have a 1067 frequency value of 0. The CFList is optional and its presence can be detected by the length 1068 of the join-accept message. If present, the CFList replaces all the previous channels stored 1069 in the end-device apart from the two default channels. The newly defined channels are 1070 immediately enabled and usable by the end-device for communication. 1071 2.7.5 AS923 LinkAdrReq command 1072 The AS923 LoRaWAN only supports a maximum of 16 channels. When ChMaskCntl field is 1073 0 the ChMask field individually enables/disables each of the 16 channels. 1074 1075 ChMaskCntl ChMask applies to 0 Channels 1 to 16 1 RFU .. .. 4 RFU 5 RFU 6 All channels ON The device should enable all currently defined channels independently of the ChMask field value. 7 RFU Table 52: ChMaskCntl value table 1076 If the ChMask field value is one of values meaning RFU, the end-device should reject the 1077 command and unset the "Channel mask ACK" bit in its response. 1078 1079