Product Overview - Raymarine Dragonfly Installation And Operation Instructions Manual

2.2 Product overview

The unit connects directly to a Raymarine DownVision
transducer and a vessels power supply.
The Dragonfly TM display is a standalone Fishfinder and chart
plotter combo multifunction display.
The product includes the following features:
• Internal GPS receiver.
• Internal 2 Channel CHIRP sonar module:
– DownVision TM — ultra high resolution channel providing
photo like clarity.
– CHIRP Sonar — high resolution fish targeting channel.
• Raymarine's LightHouse TM
• Tilt and swivel quick release base with optional locking core.
• Surface mountable using the optional surface mount adaptor
kit.
CHIRP DownVision
DownVision TM produces a wide–angle side-to-side beam and a
thin fore-to-aft beam. The coverage of the DownVision
is a water column directly beneath and to the sides of the vessel.
DownVision TM beam
DownVision TM is effective at lower vessel speeds. In deeper
waters the CHIRP bandwidth is automatically optimized to
improve bottom lock and the detection of moving objects (e.g.
fish) in the wider water column.
The wide, thin beam produces clear target returns. The use of
CHIRP processing and a higher operating frequency provide
a more detailed image, making it easier to identify bottom
structures around which fish may reside.
CHIRP DownVision TM screen example
Document and product information
user interface.
TM overview
TM
TM
D13000-1
CHIRP Sonar overview
CHIRP sonar produces a conical shaped beam, the coverage of
the conical beam is the water column directly beneath the vessel
Conical beam
beam
Sonar is effective at a range of speeds. In deeper waters the
CHIRP bandwidth is automatically optimized to improve bottom
lock and the detection of moving objects (e.g. fish) in the wider
water column.
CHIRP sonar screen example
D12777-2
D12784-2
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