2016-05-29, 05:55 PM
(2016-05-29, 03:15 PM)PaddyB Wrote:Yes mine works fine with a usb to serial as well.(2016-05-27, 08:57 PM)gowzel Wrote:(2016-05-27, 08:28 PM)SYWindveer Wrote: The NASA AIS puts out a sort of RS232
I use a serial to USB adapter myself ( prolific chipset )
Your adapter is NMEAv2 to USB
You can try R(eceive) + and -
Pin2 -> R+
Pin5 (shield) -> R-
If it does not work you can try to connect NASA pin5 (shield ) to GND instead of R-
Either may work.
Googling RS422 vs RS232 can provide more technical info since NMEAv2 is electrically RS422
Regards,
Thanks for that, I am 50 miles from the coast so going to struggle to get a signal at the moment, otherwise I would have just kept swapping them about.
Mine outputs a dummy message when it powers up, which shows up in Opencpn. Just pull out the power lead and push back in. On the usb/serial it's wired to recieve and ground. Works fine.
Sent from my SGP511 using Tapatalk
NASA cuts a lot of corners with their circuitry to keep the price down.
That's why it may not be compatible with balanced NMEA interfaces.
I have upgraded my AIS Engine 1 to version 2 with the upgrade chip so it can receive AIS B messages.
I was worth the upgrade