AIS Active Marine Tracking paths VK4

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AIS Active Marine Tracking paths VK4

Postby VK2KRR » Sat Sep 22, 2012 9:58 pm

Wow it looks like the VK4 coast is coming to life tonight, VK4FGB at Cairns doing brilliantly well, hearing currently out to 1400 Km!
http://www.marinetraffic.com/ais/statio ... eader=true

Look at his awesome past 3 hour map -

Cairns.JPG
VK4FGB
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Re: Active Marine Tracking paths VK4

Postby VK2KRR » Sat Sep 22, 2012 10:18 pm

Mackay map from VK4AJL
VK4AJLMackay.JPG
VK4ALJ Mackay


VK2XPX Thursday Island
VK2XPXThursdayIsl.JPG
VK2XPX Thursday Island


Townsville
Townsville.JPG
Townsville
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Re: Active Marine Tracking paths VK4

Postby VK2KRR » Sat Sep 22, 2012 10:19 pm

Mission Beach, between Carins/Townsville
Mission Beach.JPG
Mission Beach
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Re: Active Marine Tracking paths VK4

Postby VK4DU » Sun Sep 23, 2012 9:39 am

That is impressive. AIS is superb for tracking openings.

There is a marine ch 16 voice link on a coastal mountain here in Cairns, used by the Coast Guard.

The site has magnificent coverage - you can always hear Townsville, and Mackay is heard regularly.

It links on 460.750 MHz.
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Re: Active Marine Tracking paths VK4

Postby VK2KRR » Sun Sep 23, 2012 10:04 am

Perhaps a slight explanation for those who may be wondering about the different coloured spots showing on the maps.

The RED spots are the low power 2 Watt transponders.

The GREEN spots are the usual 12 Watt transponders.

The YELLOW spots are from shore based stations, which are usually Lighthouses. Some Maritime Safety Bases. There 12 Watts.
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Re: Active Marine Tracking paths VK4

Postby VK4DU » Sun Sep 23, 2012 11:01 am

I can hear Hervey Bay on VHF marine ch 67 (156.375) from the Cairns marine VHF translator mentioned in my previous post now...

That is about 1200 km....
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Re: Active Marine Tracking paths VK4

Postby 9A4CU » Mon Sep 24, 2012 2:55 am

Great reception along VK4 coast from Cape York to Brisbane and accross Coral Sea all way to the Papua.I took screen print of Townsville station at 16.42 UTC.Just amazing!
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Re: Active Marine Tracking paths VK4

Postby VK2KRR » Mon Sep 24, 2012 8:48 am

9A4CU (cant remember ur name sorry :oops: ) tnx for the excellent 24 hr coverage map. Considering its usually probably less than 200 km, thats amazing.
I didn't see to much VK4 activity chasing the tropo up on the logger, most seemed to not be there in the evenings :lol: I did see VK4FLR make some good ones with VK4AFC, 882 km on 2 & 70, was about the best I saw posted up.
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Re: Active Marine Tracking paths VK4

Postby VK2KRR » Fri Nov 02, 2012 8:07 pm

Current tropo situation along the VK4 coast. Contacts there for the taking if your on at the right times.
To see some big paths on 2m WSPR would be interesting to see.

Mission Beach, between Carins/Townsville
VK4.JPG
VK4 coast


Also, keep in mind the red spots are only running 2 Watts. Green is 12 Watts. Yellow are usually lighthouses running 12 Watts.
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Re: Active Marine Tracking paths VK4

Postby VK2KRR » Sat Nov 17, 2012 3:22 pm

Am wondering if any stations in the area of Brisbane to Byron Bay, worked on 2m (or via the repeater) with stations on New Caledonia over the past few days?
Were you all asleep?

NC AIS.JPG
Byron AIS
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Re: Active Marine Tracking paths VK4

Postby VK2KRR » Sat Nov 17, 2012 4:15 pm

Here is a corresponding link to FM radio reception from Noumea in the Brisbane area, brilliant signal.

http://www.youtube.com/watch?v=q3UJeRb3 ... e=youtu.be
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Re: Active Marine Tracking paths VK4

Postby VK4KSY » Sat Nov 17, 2012 4:42 pm

Nothing here Leigh. I am up early and the radio sits on 146.800. This gives me B/berg FK8 Nth/NSW (never worked from home) and NZ. Have been some rock crushing openings from B/berg but no FK8 :( .
Thanks for the posting.

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Re: AIS Active Marine Tracking paths VK4

Postby VK2KRR » Thu Sep 12, 2013 11:52 am

There was movement at the VK4 stations for the word had passed around that a path along the coast had got away :arrow:

Brisbane are rise in Tropo.JPG
Brisbane are rise in Tropo, graphs.


BrisCoastGuard.JPG
Brisbane coast guard reception 24 hr


Jacobs Well.JPG
Jacobs Well reception


Byron Bay.JPG
Byron Bay Lighthouse reception
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Re: AIS Active Marine Tracking paths VK4

Postby VK2KRR » Fri Sep 13, 2013 5:19 pm

Fairly easy looking path from Cairns/Townsville area at present to FK8.

Here we see VK4FGB at Cairns, reception to New Caledonia.

vk4fgbCairns.JPG
VK4FGB Cairns to New Caledonia
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Re: AIS Active Marine Tracking paths VK4

Postby VK2KRR » Fri Sep 13, 2013 5:44 pm

An awesome BRIEF opening yesterday evening after sundown along the VK4 coast and ranges.
Here we see a map of where the station on Mt Tamborine, SW of Brisbane was able to hear. Right up to a vessel in Papua Gulf of around 2300 km. Brisbane coast guard station also did very well. This particular opening lasted only about 1 hour and then faded away.

Tamborine.JPG
2300 Km Mt Tamborine


This highlights a situation where well set up stations running 2m WSPR could have exposed this particularly long distance opening very well from Brisbane. Of course, there is no point without stations operating from each end.
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Re: AIS Active Marine Tracking paths VK4

Postby VK4DU » Thu Sep 19, 2013 9:34 pm

Yes, marine 16 was open down the coast yesterday arvo.
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Re: AIS Active Marine Tracking paths VK4

Postby VK2KRR » Thu Sep 26, 2013 4:40 am

Townsville coverage, Thursday morning 26th Sept

townsville.JPG
Townsville
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Re: AIS Active Marine Tracking paths VK4

Postby VK2KRR » Thu Sep 26, 2013 7:21 pm

This really shows how exceptional the current conditions are from VK4 across to New Caledonia. Keep in mind, if you have a look at their stats page http://www.marinetraffic.com/ais/statio ... eader=true
You can see on the right hand top graph, they have hardly heard above 50nm for the past 12 months, but right now that have signals out to 1146 nm! (2122 km)
Many areas currently should be able to get to New Caledonia from VK4, even parts of VK2 with good set ups.
I have sent a couple of emails to some FK8 stations in the past 30 mins to see if I can get anyone on air or find out status of the repeaters.

FK8 Noumea AIS.JPG
FK8 Noumea AIS evening 26.09.13
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Re: AIS Active Marine Tracking paths VK4

Postby 9A4CU » Tue Oct 08, 2013 8:13 pm

Have a look at today´s reception by VK4XPX from Thursday island.Ships all the way from Cape York to Brisbane and far away from coast.
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Re: AIS Active Marine Tracking paths VK4

Postby VK2KRR » Tue Oct 08, 2013 8:56 pm

One thing to keep in mind is that the 24 hour maps only appear to update around 0000 UTC each day, but they also have more than one days spots on them, at least 2 or 3 days worth or more, I've not fully checked this out.
But even so if you click the past 3 hour link on his stats page http://www.marinetraffic.com/ais/statio ... eader=true VK4XPX is doing quite well about 1943 km in the past hour.
Thanks for the info I had not been observing VK4XPX station, might have to look more often at this one.
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