I have an iGate in the garden, and it logs what comes through so I can see signals going both ways. This is what the iGate logged when I sent a message from APRSdroid (via APRS-IS) to the tracker:
:49 M0LEP-10 CA2RXU_LoRa_iGate_1.3 TX / MESSAGE / M0LEP-10 ---> M0LEP-7 :Test from Net{1
:58 M0LEP-10 CA2RXU_LoRa_iGate_1.3 RX / MESSAGE / M0LEP-7 ---> M0LEP-5 :ack1 / -60dBm / 6.25dB / 2450Hz
Going the other way, there’s no ack:
:55 M0LEP-10 CA2RXU_LoRa_iGate_1.3 RX / <<FF>#001M0LEP-7>M0LEP-5:Test back to Net#015#012 / -78dBm / 5.50dB / 2471Hz
I think the <FF>#001 and #015#012 indicate something’s not being handled correctly.
(APRSdroid is *-5, *-7 is the tracker, and *-10 is the iGate,in case that’s not clear.)