Kerlink Wirnet Dual Antenna Support

[finnoliver]

Hi,

the Kerlink Wirnet iBTS seems to struct the rx Data a little different (see UDP Dump below), when using two antennas and standard pkt-forwarder. That way the gateway bridge doesn't seem to be able to handle RSSI and SNR correctly, when carrying over to MQTT. Would it be possible to add support for that?

Greetings Finn

{
    "rxpk": [{
        "tmst": 879148780,
        "time": "2017-07-04T13:51:17.997099Z",
        "rfch": 0,
        "freq": 868.500000,
        "stat": 1,
        "modu": "LORA",
        "datr": "SF7BW125",
        "codr": "4/5",
        "size": 24,
        "data": "gM+AMQcAvgQBlohnlJqUGOJKTDuTscQD",
        "rsig": [{
            "ant": 0,
            "chan": 7,
            "rssic": -95,
            "lsnr": 14.0,
            "etime": "42QMzOlYSSPMMeqVPrY0fQ==",
            "rssis": -95,
            "rssisd": 0,
            "ftime": 1255738435,
            "foff": -8898,
            "ft2d": -251,
            "rfbsb": 100,
            "rs2s1": 97
        }, {
            "ant": 1,
            "chan": 23,
            "rssic": -88,
            "lsnr": 14.0,
            "etime": "djGiSzOC+gCT7vRPv7+Asw==",
            "rssis": -88,
            "rssisd": 0,
            "ftime": -1252538435,
            "foff": -8898,
            "ft2d": -187,
            "rfbsb": 100,
            "rs2s1": 104
        }]
    }]
}

[brocaar]

Thanks! I'll have to dig into this as it is not mentioned in the packet-forwarder PROTOCOL.TXT. Which version of the packet-forwarder does this gateway run?

[finnoliver]

Hi brocaar, thanks for answering. The Protocol.txt included in the package is allegedly 1.0, which I guess is pretty old and a bit weired. I'll attach the file. The package forwarder itself is supposed to be v3.1. PROTOCOL.TXT

[finnoliver]

45 I tried to write a little patch.