| About Radar Reflectors | ||||||||||||||||||
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Every boat needs a radar reflector. A ship's radar system will only work with boats
that are visible on radar, and a radar reflector is what makes your
boat visible. Radar
systems typically require a minimum of 3 consecutive "hits" or blips on a ship's radar
before it can be acquired as a target. This puts a
premium not only on the strength
of the return, but also on consistent coverage. Now defense industry technology has been brought affordably to the pleasure boating industry to provide you with consistent coverage. Luneberg lenses have been used by the Navy, Army and Air Force for years as radar reflectors. The Tri-Lens Reflector uses this technology to bring a far superior reflector to the market. The Tri-Lens Reflector has more angular coverage and higher radar cross section (RCS) than reflectors made of triangular or circular plates. Our Luneberg lens reflectors focus incident electromagnetic plane waves onto a reflector cap located near the back surface of the lens so that RCS enhancement is provided over a conical view angle. This is what gives the Tri-lens it's unique coverage signature. The signal from the most commonly used radar reflectors (corner reflectors) have a few peaks and many valleys. The manufactures of these typer of reflectors (Firdell, Mobri, Davis) always refer to RCS in terms of Peak RCS. What they don't tell you is this RCS is rarely obtainable and never happens when your boat is pitching or heeling. Also, they never mention angular coverage, which is most important when evaluating a radar reflector. A tri-hedral radar reflector's angular coverage is just 35 degrees wide. The Tri-Lens Reflector has a far superior signature. There are 3 wide peaks and just 3 narrow valleys. The Tri-Lens has the same maximum radar cross section as 12" aluminum corner reflector clusters, but has far more angular coverage. There is a better chance of being seen by another ship's radar in low visibilty, high traffic or emergency situations when using the Tri-Lens Reflector.
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Tri-Lens Radar Reflector Footprint |
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Typical Corner Reflector Footprint |
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