There is nothing as bad as buying a fish finder then you notice it can’t meet your needs. And that is why it is important to know the features to look out for when looking for a fish finder to make sure you get the right fish finder. Different people have different needs and hence what may work for one may not necessarily work for the other and hence one should define the needs so as to know what features to look out for in a fish finder. Some of the factors to consider in choosing a fish finder include:
The frequency may either be single, dual or multiple. Frequency will influence the transducer and this will have an effect on the cone angle. Many transducers will come in frequencies of 50, 83, 192 or 200 kHz. Higher frequencies of 192 or 200 are best suited for shallow waters while low frequencies best suited for deep waters. The higher the frequency of the fish finder the more the detail it will show. High frequency means there are many sonar waves that are being sent and received by the transducer.
The higher the power of a fish finder the faster it can display readings and the deeper the readings can be. Power is measured in wattage (W). Low power finders are suited for shallow waters while high power is suited for deep waters. If the power is low it means that the sonar waves will be slow thus making reading fuzzier. That is why a high power will translate to a faster reading and a clear reading.
Screen resolution of your fish finder has an impact on the clarity of the display and thus the more the screen resolution the better.
A color screens are always better and that is why they are a standard in most electronics. A color screen will give you more detail and will make the fish finding experience more exciting. Color screens can be used in whatever lighting and weather even in the dark they will still is outstanding. Black and white screens are still there but very rare.
They are the main units that send and receive sonar waves after which it will send the data picked from the water to the main unit after which the signal will be translated to a picture. There are many kinds of transducers the common one being the transom mounts transducer.
Cone angle is the width of a beam that can be sent from the bottom of the boat into the water. It is placed where the transducer is and is thin and pointy at that point but gets wider as it goes down. The wider the angle the more the area it can cover. You should however remember the wider it gets the less sensitive it becomes.
Those are the main features to look out for when choosing a fish finder but there may be many more. There are many fish finders across a different price range and there are sites where you can find a listing of best fish finder under 500 that is worth checking at.