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Forum: Electrics and electronics 12 January 2008, 20:58
Replies: 52
Views: 10,185
Posted By Poly
...I am waiting with baited breath...

...I am waiting with baited breath...
Forum: Electrics and electronics 09 January 2008, 22:53
Replies: 52
Views: 10,185
Posted By Poly
Can anyone estimate how far away the land ahead...

Can anyone estimate how far away the land ahead is just from the picture? I have never been able to estimate distance (at sea or on land).

Obviously GPS/chartplotter helps with interpretation too.
Forum: Electrics and electronics 09 January 2008, 22:42
Replies: 52
Views: 10,185
Posted By Poly
Jeff, I'll play along! Looks to me like a...

Jeff, I'll play along!

Looks to me like a collection of islands (at two different ranges) in the central third of the picture (there is a lighthouse or other building on top of the left most...
Forum: Electrics and electronics 20 December 2007, 21:38
Replies: 52
Views: 10,185
Posted By Poly
JW - no they don't they are measuring the heat...

JW - no they don't they are measuring the heat emitted by the object(a function of its temperature and the material at the surface). Whilst more modern systems will display this in colour - it is...
Forum: Electrics and electronics 20 December 2007, 20:43
Replies: 52
Views: 10,185
Posted By Poly
And Bruce - to bring us back on topic a little -...

And Bruce - to bring us back on topic a little - you might want to check this out for a discussion on radar safety: https://www.powerboat.ie/forums/archive/index.php?t-481.html
Forum: Electrics and electronics 20 December 2007, 20:23
Replies: 52
Views: 10,185
Posted By Poly
Its been about 8 years since I last has any...

Its been about 8 years since I last has any reason to work with IR imaging systems and I know the quality has improved enormously and the price has fallen dramatically since then - but I think to get...
Forum: Electrics and electronics 20 December 2007, 18:20
Replies: 52
Views: 10,185
Posted By Poly
So in fog you would rather have the sort of IR...

So in fog you would rather have the sort of IR system you can buy for £600 than the sort of radar you can get for the same money?

Bearing in mind that:

for that money you will not get a...
Forum: Electrics and electronics 19 December 2007, 17:01
Replies: 52
Views: 10,185
Posted By Poly
Try cactus - they usually have the manuals - e.g....

Try cactus - they usually have the manuals - e.g.
https://www.cactusnav.com/manuals/Furuno%201623%20manual.pdf although I don't see any safety or installation instructions relating to people...
Forum: Electrics and electronics 19 December 2007, 14:36
Replies: 52
Views: 10,185
Posted By Poly
Bruce - for £650 is the display completely...

Bruce - for £650 is the display completely waterproof
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