www.dragino.com
LG02 LoRa Gateway User Manual
46 / 63
Now the LG02 will transfer all packets receive on Radio 1 (915.2Mhz, sf=7, bw=125000, cr=5,
wd=0x34,bandwidth= 125k) to Radio 2 (903.9Mhz, sf=7, bw=125000, cr=5, wd=0x34, bandwidth=
125k)
Below is the debug info for reference:
9.2
Limitation
While use this mode to enlarge the LoRaWAN coverage, there is limitation because the LG02 only
listen one Frequency and DR, while the LoRaWAN end node transmit the data on multiply
frequency and different DR. For example, in EU868 LoRaWAN, the end node LoRaWAN settings
are:
EU863-870
Uplink:
868.1 - SF7BW125 to SF12BW125
868.3 - SF7BW125 to SF12BW125 and SF7BW250
868.5 - SF7BW125 to SF12BW125
867.1 - SF7BW125 to SF12BW125
867.3 - SF7BW125 to SF12BW125
867.5 - SF7BW125 to SF12BW125
867.7 - SF7BW125 to SF12BW125
867.9 - SF7BW125 to SF12BW125
868.8 – FSK
Downlink:
Uplink channels 1-9 (RX1)
869.525 - SF9BW125 (RX2 downlink only)
For uplink
: if we set LG02 to listen on 868.3 , SF7, BW125, and transmit at 868.3,SF7,BW125. The
LG02 will receive all end node’s packet at 868.3 SF7BW125 and can’t receive other frequency
from end node. Which means the LG02 can only extend the uplink for 868.3 SF7BW125.
For downlink
: Due to IQ inverter issue, the end node can’t get relay packet from LG02. So OTAA
mode can’t work. User need to use ABP mode.
