Options; General; 90 Degrees Tilt; Triple- Or Multiple-Frequency - Simrad SP70 - REV D Operator's Manual

Simrad SP70

Options

6

General

The standard SP70 sonar is a single 26 kHz version with
maximum 60 degrees tilt, and with beam stabilization. With the
limitation of this tilt, the sonar is most useful for purse seiners
searching for fish in the upper water layers. This is because the
standard version do not include the 90 and 180 degrees vertical
slice presentations.
The beam stabilization was an optional function until 1 January
2003. After that date, the function was included with the
standard sonar delivery.
The options described below are pre-programmed into the
standard software version, and a code word is required to make
the actual option available. Simrad offers a 1 month free test
period for certain options. Note that the Scientific Output
function is not available for such a test period.
For a permanent installation of a chosen option, a new code
word will be released from Simrad when the option is ordered.

90 degrees tilt

The optional 90 degrees tilt version is specially powerful for
trawlers, but is also very popular for purse seiners. This because
in this version all the 180 degrees vertical modes available.
In the 180/Vertical and Omni/Vertical modes, a trainable 180
degrees vertical slice is presented.

Triple- or multiple-frequency

In addition to the standard 26 kHz frequency, options are
available for triple and multiple frequencies.
• In the triple-frequency version, you can select between 24
kHz, 26 kHz and 28 kHz.
• In the multiple-frequency version you can select from 11
frequencies from 20 to 30 kHz in 1 kHz steps.
These selections are particulary useful when it is necessary to
suppress interference from other sonars.
850-164186 / Rev.D