Phil_boat
Well-Known Member
Which bit isn’t compliant?
AIS permanently on, do you?
- Thread starter GEM43
- Start date
Which bit isn’t compliant?
dunedin
Well-Known Member
Wired to the same power supply switch isn't a compliance issue. That's how ours is as well.
It is the source of the GPS data input to the AIS that was the compliance issue implied in a previous post.
oldharry
Well-Known Member
Yes, but unless for maintenance they rarely stay in port for weeks at a time as Yachts do.
Roberto
Well-Known Member
Phil_boat
Well-Known Member
I know
But the salty dude suggested mine also isn’t compliant for some reason? AFAIK it is.
And I’d guess the other guys is compliant, he just doesn’t realise that it has its own built in GPS.
john_morris_uk
Well-Known Member
Ours has its own GPS but is wired in parallel with the instruments. It gets turned off when we anchor. Hopefully other boats see our anchor light and avoid us that way.I know
But the salty dude suggested mine also isn’t compliant for some reason? AFAIK it is.
And I’d guess the other guys is compliant, he just doesn’t realise that it has its own built in GPS.
oldmanofthehills
Well-Known Member
Why on earth would you want a switchable offable auto bilge pump. What if boat starts taking on water on moorings or in marina? Stupid design as you say
Phil_boat
Well-Known Member
My Merry Fisher was the same. Well, it didn’t have a float switch.
It now does and it’s permanently live.
Roberto
Well-Known Member
On a left alone boat with some serious water leak, how long would a bilge pump run before the batteries go flat and the boat sinks anyway? If intermittent leak, cost of renewing a flat battery bank wrt emptying a bilge full of water? IMHO much better to invest in some sort of distance/audible/visible alarm to warn people all around, or relying on marina personnel to check the waterline, surely I do not leave any bilge pump permanently wired to the batteries.
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Supertramp
Well-Known Member
LIke you, my AIS is on all the time I am aboard (and afloat). I switch to the Anchor setting as I drop anchor and it then shows my position relative to the anchor with alarms if I drag. Very useful in tight Scottish spots. Plus anyone can see on AIS that I am anchored, including family at home.
It consumes next to no power and has its own display (Vesper). A great tool underway and at rest.
lustyd
Well-Known Member
Bilge pimps are a relic of the wooden boat days anyway, used to remove water that seeps in. They are also handy for condensation and window leaks.
They will absolutely not stop your boat sinking if it springs a leak. Not enough transfer and not enough power.
doug748
Well-Known Member
I turn AIS on if it is foggy or when offshore or for a bit of entertainment when bored. So not a lot.
ashtead
Well-Known Member
It’s certainly wise to turn off in marina if you don’t want to be disturbed by a screeching alarm over dinner or whatever you might be doing. We sometimes turn on to check its working when in marina but for just limited time. I know some in marina seem to leave on continuously but maybe they are liveabords using it when tethered to pontoon.
lustyd
Well-Known Member
I can’t think of a reason to have the alarms on unless offshore, but I can certainly see uses for transmitting AIS continuously.
We all use it differently.
We all use it differently.
oldmanofthehills
Well-Known Member
They won’t help with major leak, but most boats don’t sink on moorings from that. All shaft seas leak at times and in muddy waters the ceramic seals (which are great) often leak slightly with muck on the plates. Boats also fill up with rain. Of course all boats should be inspected once a month but I have seen many a boat getting lower in the water over the months
A decent battery and auto pump gives reassurance and will move a vast amount of water before flattening even without solar. Our single 150 w panel keeps battery at 12.9 to 13.4 come winter or summer
ylop
Well-Known Member
I would say because sometimes the auto can stick on - which ultimately will burn out the motor. On a previous boat with an auto pump if was quite handy to be able to leave if off for say 1 night of heavy rain and see if the rain leak had been sorted. OK both “edge cases” that you can achieve by pulling a fuse - but I think if your operating procedure is to treat the fuse like a switch - you should have installed a switch!
dansaskip
Well-Known Member
A further note about my AIS - features which can avoid the clutter when sailing in congested waters
It has 4 profiles, offshore, coastal, harbour and anchored and is easy to switch between them.
For each of these you can set up whether it will sound an alarm and for what conditions eg distance off or if on collision course
So for example in my harbour mode it will not sound an alarm so preventing distractions, I reckon if an a harbour I will have my wits about me- or should but of course still displays other ships on the screen.
For coastal, only alarm if close approach/collision & within certain range.
Off shore can set different conditions so won't be disturbed by ships passing harmlessly by.
Just a bit puzzled if any decent AIS didn't have the ability to set up different parameters like this to avoid unnecessary alarms
So my question is do they or don't they?
It has 4 profiles, offshore, coastal, harbour and anchored and is easy to switch between them.
For each of these you can set up whether it will sound an alarm and for what conditions eg distance off or if on collision course
So for example in my harbour mode it will not sound an alarm so preventing distractions, I reckon if an a harbour I will have my wits about me- or should but of course still displays other ships on the screen.
For coastal, only alarm if close approach/collision & within certain range.
Off shore can set different conditions so won't be disturbed by ships passing harmlessly by.
Just a bit puzzled if any decent AIS didn't have the ability to set up different parameters like this to avoid unnecessary alarms
So my question is do they or don't they?
ashtead
Well-Known Member
Maybe the plethora of alarms in the Solent is a side effect of all the vessels in locality(despite the recession and high taxation etc ) and connection of dsc vhf to system ?
oldgit
Well-Known Member
Boat at our club has its AIS on 24/7.
Skipper lives 50 miles away and checks every so often the boat is still there.
Skipper lives 50 miles away and checks every so often the boat is still there.
oldmanofthehills
Well-Known Member
An Airtag would work just as well and would avoid the information overload of AIS cluttering up the ethersphere so that skippers using AIS cannot quickly distinguish moving boats / ships they need to keep clear of, for boats moored in their normal places. Devonport and other crowded harbours are a nightmare at night as nearly every single thing comes up as something that could be a collision hazard on one tack or the other. Miles out at sea there is no problem as AIS few and being 100m from a container vessel is cause for concern, unlike nearing moorings when proximity to something is the norm