SDR AIS available in OpenPlotter 2 - Printable Version +- OpenMarine (https://forum.openmarine.net) +-- Forum: OpenPlotter (https://forum.openmarine.net/forumdisplay.php?fid=1) +--- Forum: General discussion (https://forum.openmarine.net/forumdisplay.php?fid=2) +--- Thread: SDR AIS available in OpenPlotter 2 (/showthread.php?tid=2518) |
RE: SDR AIS available in OpenPlotter 2 - waldmattis - 2020-08-21 (2020-08-21, 09:24 AM)W_LAY Wrote: Hi, RE: SDR AIS available in OpenPlotter 2 - richarddaneel - 2020-08-21 Hi Sailoog Please help a newbie. In your instructions you say how to calibrate the SDR dongle. I did that and all went well. Then you say create a UDP port for the data, how do I do that (baby steps please). Also I am running OP 2.3.0 on a RPI 3 so when I load Qgrx it goes on and off rapidly would this be better on a RPI4? Many thanks Richard RE: SDR AIS available in OpenPlotter 2 - Tuomas_S - 2020-09-04 Hello, I'm trying to run the SDR VHF installer. The dongle is correctly identified and I can get a PPM reading for it, but when I try to find any GSM900 channels the scanner just runs and returns nothing (same happens with all bands). Also the AIS process is dead as a good friday. I can't open the dvb-t tv tuner and GQRX radio has the play button greyed out. Any pointers on how to proceed? when running the PPM scanner, it returns: Found 1 device(s): 0: Realtek, Rtl2832UDVB, SN: 0 Using device 0: Dexatek DK DVB-T Dongle (Logilink VG0002A) Found FCI 2580 tuner Supported gain values (1): 0.0 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 lost at least 88 bytes RE: SDR AIS available in OpenPlotter 2 - Sailoog - 2020-09-22 Manual for SDR-VHF app has been updated with detailed instructions for calibration and AIS settings: https://openplotter.readthedocs.io/en/latest/sdr-vhf/sdr-vhf_app.html RE: SDR AIS available in OpenPlotter 2 - SkipperEarly - 2020-09-23 a small observation SDR -VHF 2.1.1 beta: when refreshing the ppm is not updated to the set value but remains shown as the last setting. No functional issue. on another note: I like the SkyAware - fun to use and useful to check the functionality of the SDR. Is there also a "SeaAware" app for AIS? or is it possible to set the AIS frequencies somewhere in the SkyAware app? - just wondering, as we all live in openmarine RE: SDR AIS available in OpenPlotter 2 - Sailoog - 2020-09-25 (2020-09-23, 09:03 AM)SkipperEarly Wrote: a small observation SDR -VHF 2.1.1 beta: when refreshing the ppm is not updated to the set value but remains shown as the last setting. No functional issue. when you calibrate any device you set a value for it but this value is just a reference, nothing is written in the device or in the settings of the different tools. You may want to set a tool with different ppm value than another tool using the same device. Have I understood your observation? I guess our SkyAware is OpenCPN RE: SDR AIS available in OpenPlotter 2 - SkipperEarly - 2020-09-25 @sailoog : yes RE: SDR AIS available in OpenPlotter 2 - Loxon - 2020-09-27 Hi, Just want to say what a fantastic project and community this is! I hope to be able to contribute to it in time! I had a couple of questions that might be useful for other members as well. Apologies if it's been asked before. I have a cheap DVB-T/DAB/FM dongle from china: "RTL2832U R820T2". It comes with a tiny little ~15 cm antenna that I've been testing it with. After a few false starts I've managed to get it configured and receive some targets, but my range is very poor. Any help / advice on the following would be much appreciated!
Thanks RE: SDR AIS available in OpenPlotter 2 - Sailoog - 2020-09-29 1 and 2 are the expected behavior. It is really surprising that you get any target with that 15cm antenna. they should be really close to your position. You need a VHF antenna. RE: SDR AIS available in OpenPlotter 2 - Loxon - 2020-09-30 (2020-09-29, 02:30 PM)Sailoog Wrote: 1 and 2 are the expected behavior. OK thanks for the reply. They targets are indeed very close - the next step is to connect it to one of my existing vhf antennas via splitter, or perhaps have a go at making a dedicated one. |