francis39
New member
I've started again because the previous thread on this topic was getting silly IMHO. For example:
[ QUOTE ]
... terrible promotion of what could be nice kit, with dreadful terminology. I hope the product dies, and they are reading this thread.
[/ QUOTE ]They probably are, but are too grown up to respond. How childish can you get? And what's in a name anyway? You could argue that NASA's done a brilliant marketing job by getting all these posts from tiresome pedants (like me? It takes one to know one!) who "know it all", and publicising their product free of charge /forums/images/graemlins/wink.gif
And someone else thinks boats can turn their AIS off when they near a harbour /forums/images/graemlins/crazy.gif! I read an article which pointed out that the <u>compulsory</u> introduction of AIS was brought forward from 2008 because of worries about terrorist threats. Any vessel obliged to carry an AIS transmitter (NOT a transponder, BTW!) and not doing so would receive heavy fines from the authorities. They have to transmit their status even when aground, moored, anchored, not under command, etc.
But I can't understand what the fuss is all about: the NASA kit looks the business, whether it is used in conjunction with a twirler or not. The 16-sample tracks (which can be up to 15-minutes'-worth of targets' relative positions) show where they are moving relative to you. If the track is pointing directly towards you, then you're going to collide if neither vessel changes the situation by altering course, slowing down, or speeding up. Twirly radars in the £1000 price range don't offer that facility, and they don't show the MMSI's either. As I said previously, it's horses for courses.
[ QUOTE ]
... terrible promotion of what could be nice kit, with dreadful terminology. I hope the product dies, and they are reading this thread.
[/ QUOTE ]They probably are, but are too grown up to respond. How childish can you get? And what's in a name anyway? You could argue that NASA's done a brilliant marketing job by getting all these posts from tiresome pedants (like me? It takes one to know one!) who "know it all", and publicising their product free of charge /forums/images/graemlins/wink.gif
And someone else thinks boats can turn their AIS off when they near a harbour /forums/images/graemlins/crazy.gif! I read an article which pointed out that the <u>compulsory</u> introduction of AIS was brought forward from 2008 because of worries about terrorist threats. Any vessel obliged to carry an AIS transmitter (NOT a transponder, BTW!) and not doing so would receive heavy fines from the authorities. They have to transmit their status even when aground, moored, anchored, not under command, etc.
But I can't understand what the fuss is all about: the NASA kit looks the business, whether it is used in conjunction with a twirler or not. The 16-sample tracks (which can be up to 15-minutes'-worth of targets' relative positions) show where they are moving relative to you. If the track is pointing directly towards you, then you're going to collide if neither vessel changes the situation by altering course, slowing down, or speeding up. Twirly radars in the £1000 price range don't offer that facility, and they don't show the MMSI's either. As I said previously, it's horses for courses.