Can't send raw LoRa packets using util_tx_test to node
I don't know why I am not able to send anything from my RAK831 Gateway to my RFM95 node using util_tx_test.c program (from https://github.com/Lora-net/lora_gateway) as plain LoRa packets. Nothing gets received on the node(using Radio Head library on node).
The log on the RAK831 is fine:
Sending 10 packets on 868400000 Hz (BW 125 kHz, SF 7, CR 1, 16 bytes payload, 8 symbols preamble) at 14 dBm, with 100 ms between each
INFO: concentrator started, packet can be sent
Sending packet number 1 ...INFO: tx_start_delay=1495 (1495.500000) - (1497, bw_delay=1.500000, notch_delay=0.000000)
Things I checked:
- Tested inverted modulation from gateway.
- Changed SyncWord to 0x12 on end node and set loraWAN_public=false in the code.
- matched frequency, CR, SF, BW, preamble.
I can send from the RFM95 node to the RAK831 gateway using util_pkt_logger without any problems. I also tried with another Dragino-gateway that could send to the end node without problems, so the end node is fine.
What could be wrong?
Thanks in advance!
I think something may be wrong. util_tx_test is a test program which can be used to assess the functionality of a gateway downlink using other gateways as receivers, not Node.
Please see the official Github: https://github.com/Lora-net/lora_gateway