Raymarine Dragonfly-4 - CHIRP Downvision Overview; CHIRP Downvision

ProductFeatures
•CompatiblewithLightHousecharts,
Navionics
®
andC-Mapchartsby
Jeppesen
®
Dragony-5
DVS
•5’BrightallweatherLEDdisplay
•DualchannelCHIRPDownVision
™
and
CHIRPSonarchannels.
•SuppliedwithCPT-DVS(Combined
CHIRPDownVision
™
,CHIRPsonar
andtemperaturetransommount
transducer
•Easyballandsocketdisplaymounting
Dragony-5
Pro
•5’BrightallweatherLEDdisplay
•DualchannelCHIRPDownVision
™
and
CHIRPSonarchannels.
•SuppliedwithCPT-DVS(Combined
CHIRPDownVision
™
,CHIRPsonar
andtemperaturetransommount
transducer
•Easyballandsocketdisplaymounting
•Built-inWi-Fi(displayonAndroid4and
iOS7compatiblesmartdevices)
•Built-inGNSS(GPS/GLONASS)
receiver
•CompatiblewithLightHousecharts,
Navionics
®
andC-Mapchartsby
Jeppesen
®
Dragony-5M
•5’BrightallweatherLEDdisplay
•Easyballandsocketdisplaymounting
•Built-inGNSS(GPS/GLONASS)
receiver
•CompatiblewithLightHousecharts,
Navionics
®
andC-Mapchartsby
Jeppesen
®
2.3CHIRPDownVision
TM
overview
DownVision
TM
producesawide–angleside-to-side
beamandathinfore-to-aftbeam.Thecoverageof
theDownVision
TM
beamisawatercolumndirectly
beneathandtothesidesofthevessel.
DownVision
TM
beam
D12777-2
DownVision
TM
iseffectiveatlowervesselspeeds.In
deeperwaterstheCHIRPbandwidthisautomatically
optimizedtoimprovebottomlockandthedetectionof
movingobjects(e.g.sh)inthewiderwatercolumn.
Thewide,thinbeamproducescleartargetreturns.
TheuseofCHIRPprocessingandahigheroperating
frequencyprovideamoredetailedimage,making
iteasiertoidentifybottomstructuresaroundwhich
shmayreside.
CHIRPDownVision
TM
screenexample
16
Dragony-4/Dragony-5/WiFish