Simrad ES70 (Fish finding echo sounder)

Six frequencies simultaneously!

The Simrad ES70 can use up to six 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 echo sounder 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.

Single beam transducers


Transducer type Frequency
(kHz)
Transmit
power (W)
Range
fish (m)
Range
bottom (m)
Simrad 12-1612200085010000
Simrad 27-2627300011004400
Simrad 38/200D3810005002100
Simrad 38-93815008002600
Simrad 38-73820009502800
Simrad 50/200D5010005001500
Simrad 50-75020007001900
Simrad 120-251201000390800
Simrad 50/200D2001000280550

Split-beam transducers


Transducer type Frequency
(kHz)
Transmit
power (W)
Range
fish (m)
Range
bottom (m)
Simrad ES18–1118200011007000
Simrad ES38B3820009502800
Simrad ES70–11708004501100
Simrad ES120–7C1201000440850
Simrad ES200–7C2001000270550

Typical observation ranges are shown in the tables.

These range calculations assume a normal sea water salinity (3.5 ppt) and temperature (+10 degrees Celcius), an average bottom (surface backscattering strength = -20 dB) and a noise level typical for a moving vessel.

Examples

Using the Simrad ES38B split-beam transducer (38 kHz, 7x7 degrees, 2000 W) you can observe a 60 centimetre cod down to 950 meters, and bottom detection works down to 2800 meters.

With the Simrad ES200–7C split-beam transducer (200 kHz, 7x7 degrees, 1000 W) you can only observe that same cod down to 270 meters, and bottom detection becomes unreliable below 500 meters.


Copyright Kongsberg Maritime AS 2007

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