Issue link: https://read.uberflip.com/i/1428362
LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 25 of 55 The authors reserve the right to change specifications without notice. 2.4.3 EU433 Data Rate and End-device Output Power encoding 668 There is no dwell time limitation for the EU433 PHY layer. The TxParamSetupReq MAC 669 command is not implemented by EU433 devices. 670 The following encoding is used for Data Rate (DR) and End-device EIRP (TXPower) in the 671 EU433 band: 672 673 DataRate Configuration Indicative physical bit rate [bit/s] TXPower Configuration (EIRP) 0 LoRa: SF12 / 125 kHz 250 0 MaxEIRP 1 LoRa: SF11 / 125 kHz 440 1 MaxEIRP – 2dB 2 LoRa: SF10 / 125 kHz 980 2 MaxEIRP – 4dB 3 LoRa: SF9 / 125 kHz 1760 3 MaxEIRP – 6dB 4 LoRa: SF8 / 125 kHz 3125 4 MaxEIRP – 8dB 5 LoRa: SF7 / 125 kHz 5470 5 MaxEIRP – 10dB 6 LoRa: SF7 / 250 kHz 11000 6..15 RFU 7 FSK: 50 kbps 50000 8..15 RFU Table 28: Data rate and TX power table 674 675 EIRP refers to the Equivalent Isotropically Radiated Power, which is the radiated output 676 power referenced to an isotropic antenna radiating power equally in all directions and whose 677 gain is expressed in dBi. 678 679 By default MAxEIRP is considered to be +12.15dBm. If the end-device cannot achieve 680 12.15dBm EIRP, the Max EIRP should be communicated to the network server using an out- 681 of-band channel during the end-device commissioning process. 682 683 684 2.4.4 EU433 JoinAccept CFList 685 686 The EU433 ISM band LoRaWAN implements an optional channel frequency list (CFlist) of 687 16 octets in the JoinAccept message. 688 In this case the CFList is a list of five channel frequencies for the channels four to eight 689 whereby each frequency is encoded as a 24 bits unsigned integer (three octets). All these 690 channels are usable for DR0 to DR5 125 kHz LoRa modulation. The list of frequencies is 691 followed by a single RFU octet for a total of 16 octets. 692 693 Size (bytes) 3 3 3 3 3 1 CFList Freq Ch4 Freq Ch5 Freq Ch6 Freq Ch7 Freq Ch8 RFU The actual channel frequency in Hz is 100 x frequency whereby values representing 694 frequencies below 100 MHz are reserved for future use. This allows setting the frequency of 695 a channel anywhere between 100 MHz to 1.67 GHz in 100 Hz steps. Unused channels have 696 a frequency value of 0. The CFList is optional and its presence can be detected by the 697 length of the join-accept message. If present, the CFList replaces all the previous channels 698 stored in the end-device apart from the three default channels. 699