Radar interference
If another boat's radar is operating on the same frequency as yours, it can create interference on your display.
The interference usually appears as spiral or radial patterns. This ra- dar has an interference rejection control to eliminate interference. Turn it on to reduce or eliminate the interference.
Installation Considerations
Prior to actual installation of the radar scanner unit, several factors must be considered to assure maximum performance.
Location
The scanner must be located so that passengers and crew are not ex- posed to the direct radar beam.
WARNING:
To comply with FCC RF exposure requirements, the ra- dar antenna for this scanner must be installed a mini- mum distance of 1 foot (0.3 m) or more ABOVE all per- sons.
This is a bad installation! The radar beam will be obstructed by the helm. This can create blind spots or shadow zones on the radar dis- play. More importantly, it will expose persons at the helm to harmful levels of microwave radiation.
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