September/October 2005 Volume 1, Issue 3
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©2005 Tsunami Fishing Systems

 
Sonar Reflections


A good sonar unit may not be essential when fishing offshore, but it sure helps! This article covers some of the more subtle points on sonar selection and use that we encountered while setting up Toy Boat 2...

Background  |  Comparison  |  Install&Setup  |  User Interface |  Performance |  What's Next?
Let's start with a comparison of some of the features of both sonar units, to give you a little better understanding for some of the upcoming comments. At first glance, they are really quite similar. (Note: If you have questions concerning the terminology or technology, Lowrance has an excellent on-line tutorial that you should check out.)

Comparison of Features
Product Lowrance X-85 Furuno LS-6100
Power (Watts RMS) 375 300
Screen Resolution (Pixels) 240V x 320H 320V x 240H
Transducer Frequency & Coverage 192 kHz / 20 degrees standard;
192 kHz / 8 degrees optional;
50 kHz / 45 degrees 
optional
50 kHz / 45 degrees
&
200 kHz / 20 degrees
standard
Automatic Control Yes Yes
Manual Control Yes Yes
Display Grayscale 4 shades 4 shades
Grayline / Whiteline Yes Yes
Speed & temp display Yes (w/optional xducer) Yes (requires S/T
transducer)
Split Screen Yes Yes
Bottom Zoom Yes Yes
Real-time display Yes ("FasTrak") Yes ("A-Scope")
Clutter Removal Yes Yes
Noise Supression Yes Yes
Variable Scroll Rates Yes Yes
Navigational Data Display No Yes
Brightness/Contrast controls Brightness, Contrast Brightness, Contrast, Night/Day

 
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