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Old 25 January 2012, 03:49   #11
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Quote:
Originally Posted by discomick View Post
How about this

Attachment 65141

Don't want to end up like this


Attachment 65142
As mentioned the Qinetic report makes interesting reading (although been a while since i read it, so don't take this as gospel, but....)

The Echomax as per your pic did well IIRC (used by lots on here / Atlantic class LB), but if space /size is a concern have a look at the TriLens reflectors, they performed the best from my recollection. Much more compact /smaller (we have a cyclops type on Razorbill)....seem to recall there being some issues with quality of mountings on some models, but that later ones had rectified the issue..........If you search for TriLens you'll find lots of info....
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Old 25 January 2012, 05:31   #12
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even the engine block or a carrier bag filled with squashed up empty drinks cans or baking foil hung from the A frame will give out a better return that some of the cheaper reflectors ,lab tested /coast guard approved or other wise .
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Old 25 January 2012, 08:52   #13
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So these are no good, even if mounted as shown on top of the A-frame?

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Old 25 January 2012, 12:24   #14
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Quote:
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So these are no good, even if mounted as shown on top of the A-frame?

Attachment 65144
Better than nothing ,
we had this at our boat club when they first came out and some members did our own live tests using most types of leisure boats and a radars mounted on the pilot cutter, lifeboat and local commercial fishing boats ,
look at most proper reviews and tests and some come out very low ,
in a lab test in the vertical position they will show up and will pass most overseas coastguard tests and approvals ,but its when tested at various different angles when you get the big nulls, in reality the same type of angles that a rolling or pitching boat may produce .

have a look at the links
How to choose a Radar Reflector

http://www.hotribs.com/Library/Radar_Reflectors.pdf
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Old 25 January 2012, 12:25   #15
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Quote:
Originally Posted by Silverfox
So these are no good, even if mounted as shown on top of the A-frame?
Waste of space
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Old 25 January 2012, 16:48   #16
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Seems the tri-lens is the one, but it does need to be fitted with a bracket top and bottom, which is ok on a yacht but tricky on an A-frame.
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Old 25 January 2012, 17:13   #17
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Seems the tri-lens is the one, but it does need to be fitted with a bracket top and bottom, which is ok on a yacht but tricky on an A-frame.
Three ways we have fitted tri- lens

The easiest I guess is shown where we just use the base of the NAV White and then feed wire up to nav white above, you just need tri lens two fiitings, they only supply one in the box, that is white ring top and botom on left image.The second image is with an extension piece and raised the white Nav and the third was a stainless box made up with the white screw you see on second image holding the lens to box through a drilled hole.
Hope this helps
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Old 25 January 2012, 17:53   #18
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I like mine, a lot better than the crappy "tube" types I used to have..........
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Old 25 January 2012, 19:06   #19
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One would imagine then, that a radar reflector mounted from it's top and hanging from the A-frame like a lantern ( maybe with a weight attached "pendulum" stylee ), would present it's reflector flanks correctly. Esp for yachty types who are at an angle when under way.
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Old 25 January 2012, 19:17   #20
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Even if it's swinging it would "flash" for the receiver, as it were.
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