scan sonar is one of the most effective tools for underwater
exploration because it can search a large area quickly and produce
a detailed picture of anything on the bottom, regardless of water
clarity. When looking at a side scan image it appears as if
the water has been removed and the operator is getting an
unobstructed view of the ocean floor, lake bottom, or river bed.
High resolution images are sent from the towfish to a topside
computer (included with the system) for display and storage.
An optional Splash-proof computer is available for small, open
boat operations. Fishers SONAR VIEW software gives the
operator complete control over the systems operating parameters.
Choose between 10 different scan ranges and 8 color schemes to
display images. Connect a GPS and position coordinates are
automatically captured with the side scan data. Point the
mouse on a target and the GPS position coordinates for the target are displayed
on the screen.
four different side scan systems the SSS-100K, the SSS-600K,
the SSS-1200K and the Dual Frequency side scan.
The dual frequency side scan is a
combination of any two frequencies (ie SSS-100K/600K).
There are pros and cons to each frequency as explained below.
Low frequency (SSS-100K)
units have excellent long range (up to 600m, 1,200m swath) and
produce a very good image when scanning with a 50 meter to
600 meter range setting. When operating a low frequency unit in
the short ranges (below 50 m) images can be seen but lack the
sharpness as seen in the longer ranges. In addition, low frequency units do
not see soft targets very well (old wood shipwrecks, drowning victims,
etc). The SSS-100K is an ideal tool for large
scale general search
such as searching for shipwrecks,
locating pipelines, rocks and reef structures, large propellers, planes, cars, etc. The range
settings in meters are: 10, 25, 50, 75, 100, 200, 400, and 600
meters (each side).
frequency SSS-600K side scan produces excellent
resolution images when scanning with a 10 meter to 75 meter
range setting. The 5 meter range produce good images, but lack
the sharpness of the higher ranges. The SSS-600K is ideal for
law enforcement and dive rescue operations or any operation that
requires a high resolution image. It produces high
resolution images at ranges up to 75m (150m swath. This
high frequency sonar will show everything that the low frequency sonars can see, plus small and soft targets like a drowning victim,
clothing, etc, that the lower frequency (100K to 300K) sonars have
difficulty detecting. The 600K side scan is also popular
with wreck hunters and archaeologists searching for old wood
vessels that may be broken up or decomposing. The limitation of the 600K is
it's shorter range as compared to the 100K side scan.
The range settings in meters are: 5, 10, 25, 50, and 75 meters
The very high
frequency SSS-1200K side scan produces excellent high
resolution images when scanning with a 5 meter to 25 meter range
setting. The SSS-1200K is ideal for law enforcement and dive
rescue operations or any operation that requires a very high
resolution image. It produces very high resolution images
at ranges up to 25m (50m swath). This very high frequency
sonar can show very small, and very soft targets in high detail. The limitation of the
only it's shorter range as compared to lower frequency side scans.
The range settings in meters are: 5, 10,
15, 20, and
25 meters (each
side). The SSS-1200K is best used as part of a dual frequency
system such as SSS-600K/1200K where the 600K is used for the
search and the 1200K is used for making final close in
passes on the target
Our Dual Frequency
side scans feature any two of the above frequencies in one
towfish. The operator selects which frequency he wants to use
depending on the project. Typical combinations are:
SSS-100K/600K - An
excellent combination for general purpose side scan work. The
100k would be used when a large search area is involved where
the target is not of soft material or small in size. After the
target is located,
close passes are made using the 600k frequency to produce a high
resolution images of the target for analysts.
SSS-600K/1200K - An
ideal combination when small or soft targets are the primary
use; or when very high detail (hi resolution) is the
requirement. The 600k would be used because of it's longer range
and once the target is located,
close passes are made
using the 1200k frequency to produce very high resolution
images of the target for analysts.
of Fishers side scan sonars come with a 500 foot depth rated
towfish, 150 feet of cable, a laptop computer, a GPS, and Fishers SONAR
VIEW software. The
computer displays a real time
color image of the ocean floor.
The screen is split down with the middle with the right side showing the
ocean bottom on the right side of the vessel, and
left side of the screen shows the ocean bottom on the left side
of the vessel.
SONAR VIEW software gives the side scan operator complete
control of all system functions with easy to use pull-down menus
and icons on the screen.
Size measurement tool, target height off bottom, annotation, and
auto bottom tracking all standard. The
operator can change colors, ranges, amplifier gain, and other
controls with a click of the mouse.
With the computer, side scan images can be stored in
memory for playback and post processing at any time in the
future. Small file
sections including screen shots can be copied for emailing. With the GPS connected to the computer the
position coordinates are captured with the side scan data.
Once GPS is connected, the mouse cursor can be
placed on any object
on the screen
and its position coordinates will
Sonar files can
be stored on the
computer's hard drive or to DVD.
Sonar Coverage Mapping
feature shows the boat's path as it travels over the search area
and the sonar coverage swath. Its all displayed on a grid
with latitude and longitude as the X and Y axis. This option makes it easy to
search even large areas and ensures no part of the area is
missed. The map can be shown in a separate window on the
same screen as the side scan image, or the map can be displayed
on a separate monitor. The user can also control the size
of the map. The map can be
exported as a image with a KML file to allow it to be easily
overlaid on other mapping programs (as shown at the
right). All data can be stored on the PC hard-drive or disk.
optional splashproof computer with ultra bright display is also available
for small, open boat operations.
The splashproof computer is not only great when its wet; on
sunny days the ultra bright
display makes the screen much easier to see. The
splashproof comes with a DVD recorder for file storage.
images and information about the side scan software
Side Scan data sheet
Splash Proof PC
Key Features of Fishers
side scan sonars:
Their portability, rugged construction, low cost, and ease of operation.
Four models to choose from. Larger towfish ensures
stability and provides high quality sonar images. Dual
frequency has both high and low frequency transducers in one
towfish. Computer and software included with system.
Fishers SONAR VIEW software provides user with lots of
flexibility in displaying and manipulating sonar images.
Each side scan system is backed by
Fishers exclusive, unconditional TWO YEAR warranty.