Radar Reflector Requirements

Radar Reflectors are measured by their Radar Cross-Section (RCS) usually represented by a Polar Diagram (as shown below).
We would recommend that a radar reflector should not be purchased unless a certified polar diagram from a government agency is provided.

As stipulated in the ISO8729 standard for Marine Radar Reflectors from the International Standards Organization (ISO), a radar reflector shall comply with the following minimum requirements for all frequencies between 9,320 and 9,500 MHz:

The maximum echoing area of the radar reflector shall be at least 10m².
It's polar diagrams shall be such that its response over a total angle of 240^o is not less than 2.5m².
The response should not be remain below this level over any single angle of more than 10^o.
These attributes should be required for angles of heel in the range of ±3^o.

The performance of a radar reflector, up to at least ±15^o of heel, shall be that it's response remains above 0.625m² over a total angle of 240^o..
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