Hello - I am experiencing unreliable communication between the RN2903 and the Multitech Conduit gateway. This has been covered on the forums here and there, but I’m not finding a solution that actually works.
-I am using a Microchip PICtail USB kit for the RN2903 chip (it’s not the RN2903A version)
-RN2903 has firmware 1.0.3
-Microchip LoRa Development Utility for testing
-ABP mode for testing (will worry about OTAA later)
-My keys are loaded in
-I am able to pass messages successfully to TTN, however 1 in approx. 10 attempts are successful only
-Using default 915Mhz Multitech Conduit configuration for TTN global_config_json
-I’ve disabled all channels on the RN2903, with the exception of: 8,9,10,11,12,13,14,15,65
-Multitech Conduit and my test project are 25 feet away from one another
-I’ve used a SDR radio, I am observing transmissions all over the band (not limited to the frequencies I enabled) - I’m convinced this is the problem.
From what I can tell, the RN2903 is not restricting it’s communication to the frequencies specified by the Multitech configuration, the RN2903 configuration as I’ve programmed via the LoRa Development Utility (Microchip software). I’ve learnt that the RN2903 can transmit on far more than 8 channels. The Multitech supports only the 8 channels. I’ve compared the channels specified in the config_json, file and the frequency list as specified: https://www.thethingsnetwork.org/wiki/LoRaWAN/Frequencies/Frequency-Plans
Would anyone have any tips / code / etc to help resolve this? I can’t explain why this is occurring. I feel I am doing everything correct - perhaps missing an important detail.