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Old 21-01-2016, 03:36   #16
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Aart K.'s Avatar

Join Date: Oct 2015
Location: the Netherlands
Boat: Kelt 800
Posts: 117

Bingo. With AISREC I have got it working.
No need to install the RTLSDR plug-in.


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Old 21-01-2016, 11:43   #17
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Join Date: Aug 2009
Location: chesapeake bay
Boat: bristol 27
Posts: 3,376

I just tested the rtlsdr plugin with rtl_ais a bit. Basically there is something seriously wrong with my setup after all. I can pick up ships no farther than 6 miles. Maybe this is normal since the antenna is only a 1.5 meters above the water? Anyway... sometimes it drops packets even when targets are within 2 miles. My dc-dc power adapter maybe adds noise to the setup, and maybe my antenna is suspect, not sure.

It did work however, and did warn me actually ships that several ship were going to pass within a half mile (and they did) from 10-20 minutes in advance

Also I saw a strange red light and wondered what kind of ship it was, and turns out it was a sailing vessel (since rtl_ais picks up B targets) I already knew the boat by it's name.

Now I was averaging 9 knots for the past few hours on only a single sail (incredible speed from the current) The other sailboat was averaging 13 knots over ground.

I also have an upconverter for my rtlsdr. It adds 125mhz to the incoming signal, so with the flip of a switch, I can tune from 0-30mhz. So far I have only picked up shortwave which is very clear. I need a mini whip antenna before I can pick up a lot of things. I should be able to get navtex though.

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