Well it is about as perfect as can be.
Nearly no other nodes in the area. I only see 2 or 3 LoRaWAN nodes from some other network (KPN?) and only traffic from my own TTN nodes, where I only test 1 at a time.
Every now and then I do see another TTN node with an RSSI of -120 and SNR of 1. (probably a node 10 - 12 km away)
The gateway is mounted at 12m altitude in the transmission tower of a neighbor of mine about 100m (maybe less) and my desk is almost with line-of-sight to the gateway at the 3rd floor (2e etage in Dutch), so about 7m from the ground.
Just one test packet I now did at SF7BW125:
"gateway_ids": {
"gateway_id": "tbdev-ten-boer"
},
"time": "2022-07-19T22:27:29Z",
"timestamp": 3402042947,
"rssi": -77,
"channel_rssi": -77,
"snr": 8.75,
I can plugin another gateway if you like.
Edit:
To answer the type of downlink messages:
{
"name": "gs.down.send",
"time": "2022-07-19T22:31:29.457791346Z",
"identifiers": [
{
"gateway_ids": {
"gateway_id": "tbdev-ten-boer"
}
}
],
"data": {
"@type": "type.googleapis.com/ttn.lorawan.v3.DownlinkMessage",
"raw_payload": "YHdcCyYKCgAFA9KthAMA/wABy1eRHg==",
"scheduled": {
"data_rate": {
"lora": {
"bandwidth": 125000,
"spreading_factor": 7
}
},
"coding_rate": "4/5",
"frequency": "868300000",
"timestamp": 3647018475,
"downlink": {
"tx_power": 16.15,
"invert_polarization": true
},
"concentrator_timestamp": "132496037355000"
},
"correlation_ids": [
"gs:conn:01G88BR7CJQKR0MRK9TE4VX7GW",
"gs:up:host:01G88BR7CYTEEK0HDHBBWA1CR8",
"gs:uplink:01G8C9CWGJDKYN0GWPZ5QAHWMJ",
"ns:downlink:01G8C9CWXH3EV68SQ1EE66YHJ1",
"ns:transmission:01G8C9CWXHZV58MNF1KGA5SB81",
"ns:uplink:01G8C9CWGKG5Y8MJ50K5XYR4T7",
"rpc:/ttn.lorawan.v3.GsNs/HandleUplink:01G8C9CWGKZ48H0PSXJPKKPCPV",
"rpc:/ttn.lorawan.v3.NsGs/ScheduleDownlink:01G8C9CWXH2ZMR5KN9N080NBQ6"
]
},
"correlation_ids": [
"gs:conn:01G88BR7CJQKR0MRK9TE4VX7GW",
"gs:up:host:01G88BR7CYTEEK0HDHBBWA1CR8",
"gs:uplink:01G8C9CWGJDKYN0GWPZ5QAHWMJ",
"ns:downlink:01G8C9CWXH3EV68SQ1EE66YHJ1",
"ns:transmission:01G8C9CWXHZV58MNF1KGA5SB81",
"ns:uplink:01G8C9CWGKG5Y8MJ50K5XYR4T7",
"rpc:/ttn.lorawan.v3.GsNs/HandleUplink:01G8C9CWGKZ48H0PSXJPKKPCPV",
"rpc:/ttn.lorawan.v3.NsGs/ScheduleDownlink:01G8C9CWXH2ZMR5KN9N080NBQ6"
],
"origin": "ip-10-100-6-46.eu-west-1.compute.internal",
"context": {
"tenant-id": "CgN0dG4="
},
"visibility": {
"rights": [
"RIGHT_GATEWAY_TRAFFIC_READ"
]
},
"unique_id": "01G8C9CWXHS8XB01P2NPGHTH9A"
}