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How Sonar W
How Sonar W
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Sonar technology is based on sound waves. The Humminbird FishFinder uses sonar
to locate and define structure, bottom contour and composition, as well as depth
directly below the transducer.
Your FishFinder sends a sound wave signal and determines distance by measuring
the time between the transmission of the sound wave and when the sound wave is
reflected off of an object; it then uses the reflected signal to interpret location, size,
and composition of an object.
Sonar is very fast. A sound wave can travel from the surface to a depth of 240 ft
(70 m) and back again in less than
¹⁄₄
of a second. It is unlikely that your boat can
"outrun" this sonar signal.
Your FishFinder will either have Single Beam sonar or DualBeam sonar. Find the
correct sonar description that applies to your unit.
NOTE:
All sonar units typically read to deeper depths in fresh water than in salt water.
Single Beam Sonar
Single Beam Sonar
Your Humminbird FishFinder 515, 525 or 535 uses a 200 kHz
single beam sonar system with a 20° area of coverage. Depth
capability is affected by such factors as boat speed, wave
action, bottom hardness, water conditions and transducer
installation.
DualBeam Sonar
DualBeam Sonar
Your Humminbird FishFinder 565 uses a 200/83 kHz dual beam
sonar system with a wide (60°) area of coverage. DualBeam
sonar is optimized to show the greatest bottom definition using
a narrow (20°) beam yet can still indicate fish found in the wide
(60°) beam when the Fish ID+
TM
feature is turned on. DualBeam
is ideal for a wide range of conditions - from shallow to very deep water in both fresh
and salt water. Depth capability is affected by such factors as boat speed, wave action,
bottom hardness, water conditions and transducer installation.
v
Troubleshooting
39
FishFinder Doesn’t Power Up .................................................................................. 39
FishFinder Defaults to Simulator with a Transducer Attached .......................... 39
Display Problems........................................................................................................ 40
Finding the Cause of Noise........................................................................................ 41
Humminbird Fishfinder Accessories
42
Specifications
43
Contact Humminbird
44
NOTE
: Entries in this Table of Contents which list (International Only) are only available on
products sold outside of the US and Canada by our authorized International Distributors.
To obtain a list of authorized International Distributors, please visit our website at
www.humminbird.com
or contact our Customer Resource Center at 334-687-0503 to
locate the distributor nearest you.
NOTE:
Entries in this Table of Contents which list (with Temp/Speed Only) require the
purchase of separate accessories. You can visit our website at
www.humminbird.com
to
order these accessories online or contact our Customer Resource Center at 1-334-687-0503.
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