I have followed the wiki setup tutorial for a raspberry pi (3B+) using an rtl-sdr and configured all settings accordingly (or so I think). I connected the rtl-sdr to a moxon antenna and have made about 15 observations all resulting in waterfalls fully purple or with a faint curved blue line in the bottom right of the waterfall. I have posted the support report below as well as the results from rtl_test. Is this just something to do with not aligning the antenna properly or can I fix this through software?
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{
“versions”: {
“satnogs-client”: “1.4”,
“satnogs-client-ansible”: “202012231828”,
“satnogs-flowgraphs”: “1.3-1”,
“gr-satnogs”: “2.2.0.0-1”,
“gr-soapy”: “2.1.3.1-1”,
“gnuradio”: “3.8.2.0-14satnogs2”,
“satnogs-config”: “0.11”
},
“state”: {
“is-applied”: true,
“pending-tags”: null
},
“system”: {
“date”: “2021-03-15T18:36:57.904110+00:00”,
“distribution”: {
“DESCRIPTION”: “Raspbian GNU/Linux 10 (buster)”,
“RELEASE”: “10”,
“CODENAME”: “buster”,
“ID”: “Raspbian”
},
“pending-updates”: false,
“platform”: {
“system”: “Linux”,
“node”: “raspberrypi”,
“release”: “5.10.17-v7+”,
“version”: “#1403 SMP Mon Feb 22 11:29:51 GMT 2021”,
“machine”: “armv7l”,
“processor”: “”
},
“memory”: {
“total”: 969105408,
“available”: 707547136,
“percent”: 27.0,
“used”: 168931328,
“free”: 352886784,
“active”: 256630784,
“inactive”: 294281216,
“buffers”: 31297536,
“cached”: 415989760,
“shared”: 31506432,
“slab”: 44920832
},
“disk”: {
“total”: 31078248448,
“used”: 3468378112,
“free”: 26292740096,
“percent”: 11.7
}
},
“configuration”: {
“satnogs_antenna”: “RX”,
“satnogs_api_token”: “[redacted]”,
“satnogs_rx_samp_rate”: “2.048e6”,
“satnogs_soapy_rx_device”: “driver=rtlsdr”,
“satnogs_station_elev”: “21”,
“satnogs_station_id”: “2052”,
“satnogs_station_lat”: “28.559”,
“satnogs_station_lon”: “-81.186”
}
}
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pi@raspberrypi:~ $ rtl_test
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00000001
Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 48.0 49.6
[R82XX] PLL not locked!
Sampling at 2048000 S/s.
Info: This tool will continuously read from the device, and report if
samples get lost. If you observe no further output, everything is fine.
Reading samples in async mode…
Allocating 15 zero-copy buffers
lost at least 20 bytes
^CSignal caught, exiting!
User cancel, exiting…
Samples per million lost (minimum): 0