Hi all.
Been running station #702 on Debian for just over 2 years. But for no known reason, it became unstable requiring stop/staring of Satnogs service every month or so. (Waterfalls were fine, it just would randomly stop providing waterfalls).
Decided to put it on a fresh Pi 4 hardware and software.
Out of the gate, getting a very odd looking waterfall on every decode:
Every sat since changing PCs results in the exact same pattern.
Never seen anything like it. Same antenna, same coax, same RTLSDRv3, same USB cable.
Just unplugged from Debian, moved USB about 4-5 inches and plugged into new Pi 4.
Here is my support dump:
------------[ copy here ]------------
{
"versions": {
"satnogs-client": "1.5.1",
"satnogs-client-ansible": "202105301943",
"satnogs-flowgraphs": "1.3.1-1",
"gr-satnogs": "2.2.0.0-1",
"gr-soapy": "2.1.3-1",
"gnuradio": "3.8.2.0-2",
"satnogs-config": "0.12"
},
"state": {
"is-applied": true,
"pending-tags": null
},
"system": {
"date": "2021-07-18T19:35:00.945453+00:00",
"distribution": {
"DESCRIPTION": "Raspbian GNU/Linux 10 (buster)",
"RELEASE": "10",
"CODENAME": "buster",
"ID": "Raspbian"
},
"pending-updates": true,
"platform": {
"system": "Linux",
"node": "satnogs-uhf-702",
"release": "5.10.17-v7l+",
"version": "#1421 SMP Thu May 27 14:00:13 BST 2021",
"machine": "armv7l",
"processor": ""
},
"memory": {
"total": 4064976896,
"available": 3558785024,
"percent": 12.5,
"used": 338866176,
"free": 2491727872,
"active": 415137792,
"inactive": 1008394240,
"buffers": 145387520,
"cached": 1088995328,
"shared": 17326080,
"slab": 114262016
},
"disk": {
"total": 7366754304,
"used": 4460929024,
"free": 2552209408,
"percent": 63.6
}
},
"configuration": {
"satnogs_antenna": "RX",
"satnogs_api_token": "[redacted]",
"satnogs_rf_gain": "20.7",
"satnogs_rx_samp_rate": "2.048e6",
"satnogs_soapy_rx_device": "driver=rtlsdr,serial=22",
"satnogs_station_elev": "400",
"satnogs_station_id": "702",
"satnogs_station_lat": "33.49641",
"satnogs_station_lon": "-117.089502"
}
}
------------[ copy end ]-------------
Same carefully tuned gain value etc.
Any suggestions what changed?