Marine electronics manufacturer, Simrad, has launched a new radar system for the coastal ferry, shipping and fishing markets. The RA73 and RA74 are the latest radar systems from Simrad to meet the carriage requirements of IMO/SOLAS regulations. The RA73/74 series is a range designed for larger marine operations. The 14-inch color CRT display has an effective radar image of a full 182mm diameter conforming to current regulations. The display can be set for either daylight or night operations.
RA73 has an output of 6kW providing a range of 64nm using a 4ft or 6ft scanner. The output of the RA74 is increased to 12 kW also using either a 4ft or 6ft scanner to provide a range of up to 72nm. To comply with IMO regulations the radars are fitted with a performance monitor to provide a continuous check on the radar signal output. For those applications where IMO approval is not required, the RA73/4 are supplied without performance monitoring. Using the Electronic Plotting Aid other vessels movements can be displayed in vector form, which assists collision avoidance in congested waters. A mapping function allows the navigator to create simple maps to overlay on the Radar image to assist navigation in frequently visited working areas. An Automatic Tracking Aid (ATA) is an optional addition to the Radar package. With manual acquisition the ATA can then automatically track up to 10 targets showing position, course and speed.