Issue link: https://read.uberflip.com/i/1428362
LoRaWAN 1.0.2 Regional Parameters ©2017 LoRa Alliance™ Page 27 of 55 The authors reserve the right to change specifications without notice. 7 250 242 8:15 Not defined Table 31 : EU433 maximum payload size (not repeater compatible) 721 722 2.4.7 EU433 Receive windows 723 The RX1 receive window uses the same channel than the preceding uplink. The data rate is 724 a function of the uplink data rate and the RX1DROffset as given by the following table. The 725 allowed values for RX1DROffset are in the [0:5] range. Values in the range [6:7] are 726 reserved for future use. 727 728 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 32 : EU433 downlink RX1 data rate mapping 729 The RX2 receive window uses a fixed frequency and data rate. The default parameters are 730 434.665MHz / DR0 (SF12, 125kHz). 731 732 2.4.8 EU433 Class B beacon and default downlink channel 733 The beacons SHALL be transmitted using the following settings 734 DR 3 Corresponds to SF9 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 Table 33 : EU433 beacon settings 735 The beacon frame content is: 736 Size (bytes) 2 4 2 7 2 BCNPayload RFU Time CRC GwSpecific CRC The beacon default broadcast frequency is 434.665MHz. 737 The class B default downlink pingSlot frequency is 434.665MHz 738 739 2.4.9 EU433 Default Settings 740 The following parameters are recommended values for the EU433band. 741 RECEIVE_DELAY1 1 s 742 RECEIVE_DELAY2 2 s (must be RECEIVE_DELAY1 + 1s) 743 JOIN_ACCEPT_DELAY1 5 s 744