Issue link: https://read.uberflip.com/i/1428362
LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 11 of 55 The authors reserve the right to change specifications without notice. the absence of the optional FOpt control field (N) is also given for information only. The 336 value of N might be smaller if the FOpt field is not empty: 337 338 DataRate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 230 222 5 230 222 6 230 222 7 230 222 8:15 Not defined Table 7: EU863-870 maximum payload size 339 If the end-device will never operate with a repeater then the maximum application payload 340 length in the absence of the optional FOpt control field should be: 341 342 DataRate M N 0 59 51 1 59 51 2 59 51 3 123 115 4 250 242 5 250 242 6 250 242 7 250 242 8:15 Not defined Table 8 : EU863-870 maximum payload size (not repeater compatible) 343 2.1.7 EU863-870 Receive windows 344 The RX1 receive window uses the same channel than the preceding uplink. The data rate is 345 a function of the uplink data rate and the RX1DROffset as given by the following table. The 346 allowed values for RX1DROffset are in the [0:5] range. Values in the [6:7] range are 347 reserved for future use. 348 349 RX1DROffset 0 1 2 3 4 5 Upstream data rate Downstream data rate in RX1 slot DR0 DR0 DR0 DR0 DR0 DR0 DR0 DR1 DR1 DR0 DR0 DR0 DR0 DR0 DR2 DR2 DR1 DR0 DR0 DR0 DR0 DR3 DR3 DR2 DR1 DR0 DR0 DR0 DR4 DR4 DR3 DR2 DR1 DR0 DR0 DR5 DR5 DR4 DR3 DR2 DR1 DR0 DR6 DR6 DR5 DR4 DR3 DR2 DR1 DR7 DR7 DR6 DR5 DR4 DR3 DR2 Table 9: EU863-870 downlink RX1 data rate mapping 350 351 The RX2 receive window uses a fixed frequency and data rate. The default parameters are 352 869.525 MHz / DR0 (SF12, 125 kHz) 353 354