tag:blogger.com,1999:blog-5134512758853747973.post155538511287897405..comments2024-03-12T07:57:19.135+00:00Comments on Maunie of Ardwall: Jobs done, wind's arrived, 538 miles to goGraham and Diannehttp://www.blogger.com/profile/05801907554827799437noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-5134512758853747973.post-41788676488165798442012-10-23T16:39:40.677+01:002012-10-23T16:39:40.677+01:00Hi Thorsten
Sorry for the delay in replying. You&...Hi Thorsten<br /><br />Sorry for the delay in replying. You're right, the AIS data is collected by shore stations. It's transmitted on VHF which has, basically, a line-of-sight range and depends on how hight the aerial is on the boat. We can see large ships on our AIS from about 10 miles away but Stromvogel and Maunie lose each others signals at about 4 miles.<br /><br />Obviously, on big passsages like the trip to Madeira, we'll be out of range for most of it, so it works best for coastal passages and to confirm when we're in harbour.<br /><br />Best regards<br /><br />Graham<br /><br />SGraham and Diannehttps://www.blogger.com/profile/05801907554827799437noreply@blogger.comtag:blogger.com,1999:blog-5134512758853747973.post-34550175501818424642012-10-15T11:58:34.624+01:002012-10-15T11:58:34.624+01:00Hi there, my name is Thorsten Dorsch and I am mode...Hi there, my name is Thorsten Dorsch and I am moderating Heidi's and Peter's Stormvogel Blog. So I'm reading there (and here of course) on a daily basis. I have a question concerning the AIS system. As far as I understand, the system is driven by land based receivers which get the signals from your boat's transmitter and send this information via the internet to the central marinetraffic.com server system. That would explain why the map only shows ships around coastal regions and also the fact, that Maunie and Stormvogel went off the map shortly after your departure from Nazare. Am I right?Anonymousnoreply@blogger.com