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FOREWORD
Congratulations on your choice of the
FURUNO Marine Radar MODEL 851
MARK-2. We are confident you will see why
the FURUNO name has become synonymous
with quality and reliability.
For over 50 years FURUNO Electric
Company has enjoyed an enviable reputation
for innovative and dependable marine
electronics equipment. This dedication to
excellence is furthered by our extensive
global network of agents and dealers.
Your radar is designed and constructed to
meet the rigorous demands of the marine
environment. However, no machine can
perform its intended function unless properly
installed and maintained. Please carefully
read and follow the recommended procedures
for installation, operation and maintenance.
While this unit can be installed by the
purchaser, any purchaser who has doubts
about his or her technical abilities may wish to
have the unit installed by a FURUNO
representative or other qualified technician.
The importance of a thorough installation
cannot be overemphasized.
We would appreciate hearing from you, the
end-user, about whether we are achieving our
purposes.
Thank you for considering and purchasing
FURUNO equipment.
Features
Your radar has a large variety of functions, all
contained in a remarkably small cabinet.
The main features of the MODEL 851
MARK-2 are:
• Traditional FURUNO reliability and quality
in a compact, lightweight and low-cost
radar.
• Smartly styled, light-weight and compact
antenna fits even on small yachts.
• Durable brushless antenna motor.
• High definition 8" LCD raster-scan display.
• On-screen alphanumeric readout of all
operational information.
• Standard features include EBL (Electronic
Bearing Line), VRM (Variable Range
Marker), Guard Alarm, Display Off Center
and Echo Trail.
• Watchman feature periodically transmits
the radar to check for radar targets which
may be entering (or exiting) the alarm
zone.
• Ship’s position in latitude and longitude (or
Loran C Time Differences), range and
bearing to a waypoint, ship’s speed,
heading and course can be shown in the
bottom text area. (Requires a navigation
aid which can output such data in NMEA
0183 format.)
• Zoom feature provided.
• Omnipad makes the selection of target and
menu items easy.