sereda
Member
Looking for one of these or similar for a little project I am playing around with
Thanks
Thanks
NASA AIS Engine
- Thread starter sereda
- Start date
Nicholas123
N/A
Not sure if this is any help because I find all these things amazingly complicated but this thing claims to pick up AIS & it's amazingly cheap! https://www.amazon.co.uk/Foxnovo®-R...refRID=0BPQPWE7GXNE9SQWZPF7&ref_=pd_sim_23_24
sereda
Member
I am currently using one of those and it does work well, but it is only single channel receive, I am looking for dual channel receive now as part of my little project. Thanks for the reply though.
Nicholas123
N/A
I hesitate to ask but what's the difference between duel channel & single channel in the scheme of things?
sereda
Member
AIS is transmitted on 2 frequencies/channels, with the commercial receivers they very quickly listen on both channels one at a time ie scan them, with the above TV or SDR dongle you can only listen to one of the channels. Not a bad thing as the dual channel ones can miss part of a message as they scan to the other channel, but listening on only one channel, it could miss a message off the other channel.
Nicholas123
N/A
OK I think I get that.Another complicated gubbins that I go sailing to get away from
Life is getting so complicated it seems to me that we are slowly being backed into a corner,thanks for the explanation.:encouragement:
PeterBoater
Active member
I have a NASA AIS Engine (receiver) that was working fine but it's since been replaced by a tranceiver. Open to offers, by PM if you prefer.
rogerthebodger
Well-known member
But if you have 2 of those receivers each tuned to the different channels and the output the multiplexed to get a 2 channel continuous receiver that will not miss any transmissions unlike a duel channel alternating receiver.
sereda
Member
Very true and worth thinking about. The reason for wanting the Nasa AIS engine is to compare sensitivity of the receivers.
Thanks,
John
Thanks,
John
