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Tips
Index
Setting Sensitivity
for the Scanning Sonar units.
When
using the Probe/Outlook, Sea Scout, or Twinscope forward scanning sonar for the first time, select the range based on only twice
your current depth (in 10 feet of water, try selecting the range of 20 feet).
Upon selecting the range, and viewing the forward scanning screen, touch the beam
control button. Now, select the beam speed of FAST. From the main menu, select
the SENS. control and read the auto-sensitivity number. Now, begin to raise the
sensitivity until the bottom and forward scanning begins to show additional resolution
and objects. You are now seeing items (fish, suspended targets, and bottom contours)
ahead and below the transducer.
Index
Feedback
on the Probe/Outlook, Sea Scout, and Twinscope
Lately,
we have received a number of letters and telephone calls commending our products.
TheProbe/Outlook, Sea Scout, or Twinscope forward scanning sonar are being used by cruising boats in the San Juan Islands
off Washington State, Ft. Lauderdale, Australia, and Europe. Large and medium
size fishing boats including Charter Bill Fishers, Albacore, Tuna, Bait Fishers,
Bass, Walleye, and King fish send us letters of thanks! Search and Rescue operators
in California and Florida, Dive boats in the Carolinas and Southern California,
as well as Sailboats in the Caribbean now use the Probe and Twinscope. If you would like to read some
of our recently received letters and,/or a brochure, please call us for more information.
We will also provide you with a list of dealers in your area who will demonstrate
the phased array scanning sonar for you.
Index
Getting
used to real SONAR
Like radar,
using forward scanning sonar requires a bit of learning. The more sensitive the
settings, the more likely you are to receive echo's and ghosts. These are bounces
of the signal off the bottom or even the hull that will present an image, but
not actual targets ahead. For example, if you turn the sensitivity up high enough,
an arch will appear from the bottom and extend in a quarter circle ahead of the
boat to the surface. When the boat is moving forward, the arced line will move
the same speed of the boat and remain ahead. This is just like a 'ghost' on radar.
It is the edge of the beam (cone) touching the bottom and rebounding back before
the center of the beam actually passed the same area. It creates an arch and is
called a "side-lobe." This side lobe is a characteristic that sonar operators
become familiar with. If you wish to squelch it out, simply turn down the sensitivity.
Remember that you may also screen out smaller targets ahead of the boat.
Index
Copyright © 1998-2006 Interphase Technologies,
Inc. All rights reserved.
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