Furuno FR-2805 Series - Manual (Page 10)

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General features
Daylight-bright high-resolution display
28" diagonal CRT presents radar picture of 360 mm effective diameter with alphanumeric
data area around it
User friendly operation by combination of tactile backlit touchpads, a trackball and rotary
controls
Audio-visual alert for targets in guard zone
Echo trail to assess targets' speed and course by simulated afterglow
Electronic plotting of up to 10 targets in different symbols (This function is disabled when
ARPA is activated.)
Electronic parallel index lines
Interswitch (optional) built in radar or ARPA display unit
Enhanced visual target detection by Echo Average, Echo Stretch, Interference Rejector,
and multi-level quantization
Stylish display
Choice of 10, 25 or 50 kW output for X-band; 30 kW output for S-band, either in the trans-
ceiver aloft (gearbox) or RF down (transceiver in bridge)
Exclusive FURUNO MIC low noise receiver
ARPA features
Acquires up to 20 targets automatically plus up to 20 targets manually, or all 40 targets
manually
Movement of tracked targets shown by true or relative vectors. (Vector length 1 to 99 min.
selected in 1 min. steps.)
Setting of nav lines, buoy marks and other symbols to enhance navigation safety
On-screen digital readouts of range, bearing, course, speed, CPA (Closest Point of Ap-
proach), TCPA (Time to CPA), BCR (Bow Crossing Range) and BCT (Bow Crossing Time)
of 2 targets out of all tracked targets.
Audible and visual alarms against threatening targets coming into operator-selected CPA/
TCPA limits, lost targets, targets, two guard rings, visual alarm against system failure and
target full situation