Hello and Happy New Year!!! 
I live in France near city name Charleville-Mésières. so frequency plan is EU868
I request your help because I’ve build a gateway with a raspberry Pi 2 and a RHF0M301 from Seeed Studio
This board has mistaken been bought at 915MHz (by someone else) and I’m trying to understand which kind of hardware modification is there between 868 and 915MHz.
I’ve followed a tutorial and install a fresh raspbian with packetforwarder 4.0.0
./packet-forwarder start --reset-pin 7
INFO Packet Forwarder for LoRa Gateway HALVersionInfo=Version: 4.0.0; O ptions: native;
INFO Reset pin specified, resetting concentrator… ResetPin=7
INFO Found gateway parameters, getting frequency plans AuthServer=https://acco unt.thethingsnetwork.org GatewayID=raspberrypi_seeed_tournes URL=https://account .thethingsnetwork.org/api/v2/frequency-plans/EU_863_870
INFO Refreshed account server information TokenExpiry=2019-04-06 07:35:48. 515712101 +0100 BST
INFO Connecting to TTN discovery server Address=discover.thethingsnetwor k.org:1900
INFO Connected to discovery server - getting router address
INFO Connecting to router… RouterID=ttn-router-eu
INFO Downlinks queuing routine started
INFO SX1301 board configured ClockSource=1 LorawanPublic=true
INFO Configured TX Lut Indexes=16
INFO Radio configured EnabledTX=true Frequency=8675000 00 RSSIOffset=-166 Radio=0 Type=SX1257
INFO Radio configured EnabledTX=false Frequency=868500 000 RSSIOffset=-166 Radio=1 Type=SX1257
INFO LoRa multi-SF channel configured Freq=-400000 Lora multi-SF chann el=0 RFChain=1
INFO LoRa multi-SF channel configured Freq=-200000 Lora multi-SF chann el=1 RFChain=1
INFO LoRa multi-SF channel configured Freq=0 Lora multi-SF channel=2 R FChain=1
INFO LoRa multi-SF channel configured Freq=-400000 Lora multi-SF chann el=3 RFChain=0
INFO LoRa multi-SF channel configured Freq=-200000 Lora multi-SF chann el=4 RFChain=0
INFO LoRa multi-SF channel configured Freq=0 Lora multi-SF channel=5 R FChain=0
INFO LoRa multi-SF channel configured Freq=200000 Lora multi-SF channe l=6 RFChain=0
INFO LoRa multi-SF channel configured Freq=400000 Lora multi-SF channe l=7 RFChain=0
INFO LoRa standard channel configured
INFO FSK channel configured
WARN No GPS chip configured, ignoring
INFO Starting concentrator… DateTime=2019-01-03 06:35:49.779 625678 +0000 GMT
INFO Concentrator started, packets can now be received and sent DateTime=2019-01-03 06:35:52.714451332 +0000 GMT
INFO Waiting for uplink packets
INFO Waiting for downlink messages
INFO Sending status to the network server Altitude=2 CpuPercentage=10.23427 FrequencyPlan=EU_863_870 Latitude=49.79673 Load1=0.93 Load15=0.14 Load5=0.35 Longitude=4.6294827 MemoryPercentage=11.56967 RTT=37 RXPacketsReceived=0 RXPacketsValid=0 TXPacketsReceived=0 TXPacketsValid=0 Uptime=0s
No packets received 
WARN Uplink packet received with an invalid CRC - ignoring
I’ve tried to build a node with an arduino and a inAIR 9.
But this node is never seen.
Does someone has a good idea to test all those stuff?
I’ve got a Hack RFone board and a RedPitaya! (downloading Pentoo in progress)
