AIS Setup on 0.15.1 - Printable Version +- OpenMarine (https://forum.openmarine.net) +-- Forum: OpenPlotter (https://forum.openmarine.net/forumdisplay.php?fid=1) +--- Forum: How do I...? (https://forum.openmarine.net/forumdisplay.php?fid=3) +--- Thread: AIS Setup on 0.15.1 (/showthread.php?tid=760) Pages:
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AIS Setup on 0.15.1 - felizcortez - 2017-09-14 I am trying to set up my DVB-T Dongle in 0.15.1 to support AIS in OpenCPN. I went to the marina this evening to hook everything up. The GPS works great and is plugged into the same powered hub as the DVB-T dongle. I know the DVB-T dongle is getting recognized because here is the output from lsusb pi@openplotter:~ $ lsusb Bus 001 Device 007: ID 1546:01a7 U-Blox AG Bus 001 Device 006: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T Bus 001 Device 005: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 001 Device 004: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub I was able to perform the calibration and came up with the following values for gain and PPM I have Channel A 161.975M selected Gain = 49.6 Correction (ppm) = -16 I'm not sure whether the correction should be a negative number, but thats what the calibration tool spit out? I tried running it a time earlier and Correction (PPM) was around 5.2. I'm using the included antenna that came with the dongle and was in the Harbor right by San Diego Bay so I thought that I should be able to see an AIS target in the marina on OpenCPN, but nothing came up after enabling AIS monitoring. Any suggestions are greatly appreciated. Thanks. RE: AIS Setup on 0.15.1 - gaspbut - 2017-09-14 Is the antenna connected properly and are you sure it does not have problems?? RE: AIS Setup on 0.15.1 - shipahoy - 2017-09-14 Are you sure you have enough power? My DVB-T Dongle did work properly when i used an extention cable on the USB. RE: AIS Setup on 0.15.1 - felizcortez - 2017-09-14 This is the powered hub I'm using. Protronix 4 Port USB 3.0 Hub with 5V/2A Power Adapter I'm not using an extension cable it's plugged directly into the separate powered hub. I bought the DVB-T module new and am using the supplied antenna and it's plugged into the input jack. I was able to get signals on multiple channels during the calibration at the Marina. RE: AIS Setup on 0.15.1 - Luckbert - 2017-09-14 can you see the records in the diagnosis? RE: AIS Setup on 0.15.1 - felizcortez - 2017-09-14 (2017-09-14, 04:17 PM)Luckbert Wrote: can you see the records in the diagnosis?Not sure what you mean by this? Is there a log file somewhere I can see the calibration data? RE: AIS Setup on 0.15.1 - gaspbut - 2017-09-14 I would you suggest to try with an appropriate VHF antenna. I built one following this video on youtube " https://www.youtube.com/watch?v=SdEglNHyHB4". Works great! RE: AIS Setup on 0.15.1 - felizcortez - 2017-09-14 (2017-09-14, 07:16 PM)gaspbut Wrote: I would you suggest to try with an appropriate VHF antenna. I built one following this video on youtube " https://www.youtube.com/watch?v=SdEglNHyHB4". Works great! The one that is included with the kit won't work at least to test things out? RE: AIS Setup on 0.15.1 - shipahoy - 2017-09-15 I did a complete re-install on my pi 3 yesterday. Installed RPI v0.10.0 NOOBS Updated Raspian Updated openplotter to 15.1 When I now ran calibration of SDR I got -37 ppm. Tried again after the SDR had warmed up and got -38 ppm. With this ppm setting I did not get a single ship on the AIS. I remembered that the calibration had been around +48 ppm before, so I used this and voila! (OpenCPN is running on my phone and I send the AIS and GPS data over bluetooth :-) I conclude that there is something wrong with the calibration software... If there are boats with AIS-transmitters in your harbour, then I guess you will be able to pick them up with the supplied antenna, but it is designed for a completely different frequency. I have tested the following antennas: http://www.metzcommunication.com/manta6.htm https://www.aliexpress.com/item/2016-NEW-NAGOYA-handled-antenna-144-430MHz-high-gain-NA-771-SMA-F-dual-band-for/32618387854.html https://www.aliexpress.com/item/2016-New-Original-Dual-Band-Antenna-SMA-Female-Antenne-VHF-UHF-136-174-for-Baofeng/32674738821.html The big expensive works best, but the small cheap ones from aliexpress works OK if you use a ground plane for the antenna (fasten the antenna to a metal plate). RE: AIS Setup on 0.15.1 - PaddyB - 2017-09-15 You can make your own antenna as well, if you can figure out how to mount it.. http://arundale.com/docs/ais/aerial_comparisons.html http://arundale.com/docs/ais/aerial.html Sent from my SGP511 using Tapatalk |