2020-05-13, 06:49 PM
maximum gain is not always the best for AIS reception. It is ok for calibration but you should find your best gain. In next versions leaving the gain empty you will apply an auto gain.
SDR AIS available in OpenPlotter 2
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2020-05-13, 06:49 PM
maximum gain is not always the best for AIS reception. It is ok for calibration but you should find your best gain. In next versions leaving the gain empty you will apply an auto gain.
2020-05-23, 04:47 PM
(2020-04-21, 11:51 AM)Sailoog Wrote: Please forgive a beginners question. Where do i select this device? In OpenCPN under the connections tab? I am just getting started with the OpenPlotter Basic distribution.
2020-05-23, 04:56 PM
This is an openplotter app, SDR VHF, not an openCPN plugin or feature. Manual under construction: https://openplotter.readthedocs.io/en/la...f_app.html
2020-06-10, 11:03 PM
I have a realtek dvb-t rtl2832u and it was working fine in openplotter 1.
Now i am unable to calibrate. After choosing device and clicking "inital ppm" it stops at "Allocatin 15 zero-copy buffers" and nothing more happens. I have left all fields blank. PPM is set to 13 manually (just a random number) *** Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001 Using device 0: Generic RTL2832U OEM Detached kernel driver 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. Reporting PPM error measurement every 10 seconds... Press ^C after a few minutes. Reading samples in async mode... Allocating 15 zero-copy buffers
2020-06-16, 07:11 PM
remove that random number and left ppm blank. use 49.6 as gain.
2020-06-17, 02:17 PM
It seems like once i've entered a number i am unable to leave it blank. I can change, but not remove the PPM. Altso tried to set it to 0 and to uninstall/reinstall "SDR VHF" from settings.
PPM: 0 Gain: 49.6 Still same result
2020-07-06, 04:43 AM
(This post was last modified: 2020-07-07, 02:18 AM by beholder77.)
Hi everyone!
I have RTL-SDR usb stick with self made "flower pot" antenna. I have calibrated the stick, found best ppm and AIS working like a charm, the OpenCPN screen is full of detected ships, but every vessel is class "A", but no class "B" ships at all I asked my marina neigbours to turn on their class "B" AIS transponders , but they are not detected despite nearest vessel in 10 meters away of me. Class "A" ships detecting more than 10 miles away... Could you please give me advice what else i able to try to detect "B" class ships
2020-08-02, 11:30 PM
Hi Guys,
Purchased a SDR-RTL dongle V3 (a couple of days ago), installed the SDR VHF 2.1.1, calibrated and edited/entered values in AIS line. The AIS service shows active and running. In openplotter, I added UDP connection (127.0.0.1 and 10110) but no AIS info showing on the chart! I've been reading/surfing/consulting the web like crazy, can't find an answer? What am I missing? Do I need additional add-ons / plug-in to run the AIS service beside SDR VHF 2.1.1? Looking forward to you answers. KR Jo
2020-08-04, 04:05 PM
My bad Sailoog, I entered that info in opencpn (connections) not openplotter.
The gps connection is also present there. Is SignalK needed to receive the ais data? Or just sdr-vhf? |
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