Issue link: https://read.uberflip.com/i/1428359
LoRaWAN 1.0.3 Regional Parameters ©2018 LoRa™ Alliance Page 61 of 71 The authors reserve the right to change specifications without notice. Table 73: IN865-867 maximum payload size 1479 If the end-device will never operate with a repeater then the maximum application payload 1480 length in the absence of the optional FOpt control field SHOULD be: 1481 1482 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 74 : IN865-867 maximum payload size (not repeater compatible) 1483 2.10.7 IN865-867 Receive windows 1484 The RX1 receive window uses the same channel than the preceding uplink. The data rate is 1485 a function of the uplink data rate and the RX1DROffset as given by the following table. The 1486 allowed values for RX1DROffset are in the [0:7] range. Values in the [6:7] range allow setting 1487 the Downstream RX1 data rate higher than Upstream data rate. 1488 The allowed values for RX1DROffset are in the [0:7] range, encoded as per the below table: 1489 RX1DROffset (Coded value) 0 1 2 3 4 5 6 7 Effective_RX1DROffset 0 1 2 3 4 5 -1 -2 Downstream data rate in RX1 slot = MIN (5, MAX (0, Upstream data rate – 1490 Effective_RX1DROffset)) 1491 The RX2 receive window uses a fixed frequency and data rate. The default parameters are 1492 866.550 MHz / DR2 (SF10, 125 kHz). 1493 2.10.8 IN865-867 Class B beacon and default downlink channel 1494 The beacons are transmitted using the following settings 1495 DR 4 Corresponds to SF8 spreading factor with 125 kHz BW CR 1 Coding rate = 4/5 Signal polarity Non-inverted As opposed to normal downlink traffic which uses inverted signal polarity 1496 The beacon frame content is: 1497 Size (bytes) 1 4 2 7 3 2 BCNPayload RFU Time CRC GwSpecific RFU CRC The beacon default broadcast frequency is 866.550MHz. 1498 The class B default downlink pingSlot frequency is 866.550MHz 1499 1500