Simrad ES60 Four frequencies
The Simrad ES60 can use up to four frequencies simultaneously with amazing fish finding proficiency.
The low frequency 18 kHz version can detect single fish down to 1300 meters, while the high frequency 200 kHz version can detect targets just a few inches from the transducer.
The ES60 provides you with a vast range of information to ensure that you are able to maximize your catch.
Observe the theoretical maximum detection depths for various transducers:
Using the Simrad 27-26/21 transducer (27 kHz, 10x13 degrees, 3000 W) you can observe a 60 centimeter cod down to 800 meters, and bottom detection works down to 3800 meters. However, with the Simrad 200-7F transducer (200 kHz, 7x7 degrees, 1000 W) you can only observe that same cod down to 260 meters, and bottom detection becomes unreliable below 500 meters.
These range calculations assume a normal sea water salinity (3.5%) and temperature (+10 degC), an average bottom (surface backscattering strength = -20 dB) and a noise level typical for a moving vessel.