Issue link: https://read.uberflip.com/i/1428371
LoRaWAN Regional Parameters ©2016 LoRa™ Alliance Page 13 of 45 The authors reserve the right to change specifications without notice. 2.2.3 US902-928 Data Rate and End-device Output Power encoding 1 FCC regulation imposes a maximum dwell time of 400ms on uplinks. The 2 TxParamSetupReq MAC command does not have to be implemented by US902-928 3 devices. 4 5 The following encoding is used for Data Rate (DR) and End-device Output Power 6 (TXPower) in the US902-928 band: 7 8 DataRate Configuration Indicative physical bit rate [bit/sec] 0 LoRa: SF10 / 125 kHz 980 1 LoRa: SF9 / 125 kHz 1760 2 LoRa: SF8 / 125 kHz 3125 3 LoRa: SF7 / 125 kHz 5470 4 LoRa: SF8 / 500 kHz 12500 5:7 RFU 8 LoRa: SF12 / 500 kHz 980 9 LoRa: SF11 / 500 kHz 1760 10 LoRa: SF10 / 500 kHz 3900 11 LoRa: SF9 / 500 kHz 7000 12 LoRa: SF8 / 500 kHz 12500 13 LoRa: SF7 / 500 kHz 21900 14:15 RFU Table 9: TX Data rate table 9 Note: DR4 is purposely identical to DR12, DR8..13 must be 10 implemented in end-devices and are reserved for future applications 11 12 TXPower Configuration 0 30 dBm – 2*TXpower 1 28 dBm 2 26 dBm 3 : 9 …. 10 10 dBm 11:15 RFU Table 10: TX power table 13 14 15 2.2.4 US902-928 JoinAccept CFList 16 The US902-928 LoRaWAN does not support the use of the optional CFlist appended to the 17 JoinAccept message. If the CFlist is not empty it is ignored by the end-device. 18 2.2.5 US902-928 LinkAdrReq command 19 For the US902-928 version the ChMaskCntl field of the LinkADRReq command has the 20 following meaning: 21 22 23