Lowrance Fish Finders Guide

 

 

 

Sonar is use to check the depth of the water and to get an idea of what lies beneath that depth. When you turn a flashlight on, the illuminating light is very narrow starting from its origin and progressively gets wider up to its end. The theory applies as well to electronics. An angle at 90 degrees, the light would stretch out to more area compared to a 20 degree angle. This is referred to as the Cone Angle. As its name suggests, multi-beam systems distribute more light, resulting to a much wider range of vision. The comprehensive practical and innovative functions of the Lowrance HDS-7 Fishfinder and GPS Chartplotter series include the magnificent 120 degree angle view with luminous clarity.

 

Kilohertz is the unit used to measure sonar frequency. Frequency is directly proportional to the signal being sent beneath the surface. The lower the frequency, the deeper the signal will be. A 50 KHz measurement for very deep waters will certainly diffuse signal through the water without much resistance. Wider coverage will result from high frequencies, therefore, signal passing through the water’s resistance will be very difficult and will only be shallow. For a very shallow lake, running your equipment at a 200 KHz frequency would be best to get a clearer view of its depths. Frequency can be set to whatever level you may want or you may need it, you can opt for a dual frequency as well.

 

 

Sonar beam automatically emits vibration that is immediately sent to the fish finder the instance it touches something. The hypersensitive equipment shows if the signal sent back by the sonar beam is from non living things beneath the water or if it is from sea creatures. The target is usually presented as a fish image on the equipment’s screen.

 

 

The layer of water on the surface which is warmer than the deeper water is called a thermocline. Thermoclines are quickly formed either due to the changing water conditions or it could be a resident characteristic of a specific water area.

 

 

The main source of strength of the fish finder is the transducer. The transducer influences the sonar beam by controlling the frequency setting. It is also responsible for the signal transmittal and acceptance which the unit interprets and presents through a graph. The following are the three basic things that one should know before using a Lowrance fish finder:

a) how to position it properly on the boat;

b) the frequencies it is compatible with and;

c) the resulting cone angle.

Transducers are mostly positioned on a horizontal bar, or the main body of the boat, distant from the motor. Transom-mounts are mostly considered as they are the fastest to set into place. There are models with high frequency transducers that might need to be set up through the hull. This could be a complicated process because it would require a hole to run through it. A transducer frequency option of either 83/200 KHz or 50/200 KHz are available using the Lowrance HDS-7, the GPS Chartplotter series and the the Lowrance HDS-5X series.

 

 

Mere words will not appease the curiosity of fish finders. A clear crisp image has to be seen for visual satisfaction. Fish finders prefer the more sophisticated displays because of the crisp picture that you can view from it. The visual clarity of the resulting image would depend on the number of pixels, the greater the number of pixels, the better picture you can see. A lighter shade of gray color is in effect for Grayscale monitors to mark the boundaries of pristine nature and the areas touched by men, including the distinction of the oceans bed and the type and extent of its habitat. CRT monitors are offered at almost skyrocketing prices but they give crispier resolutions and great vivid quality. Lowrance has a great variety of fish finders, and they have all kinds of marine gadgets needed by both professionals and amateurs in the industry.