Echoview binary calibration files

This file type is not supported in Echoview 5.0 or higher.

Echoview allows for some calibration settings to be loaded from a specially formatted data file. These data files come in two formats, text and binary. This page describes the (text) character-encoded format. See also Echoview ASCII calibration files.

Echoview binary calibration files carry the .ecb extension. Currently, they are used only for Sv variables from scanning sonars.

They must be added to a fileset and selected on the Calibration 2 page of the Variable Properties dialog box.

Note: Pre-Echoview 4.80 ASCII character encoding was supported. Pre-Echoview 5.0 UTF-8, UTF-16 and ASCII encoding was supported.

Specification

The specification for the binary format is available on request from Echoview support. The format specifies two values, a TVG correction and an Equivalent two-way beam angle correction for each beam for each distinct value of bearing and tilt.

For the Furuno FSV-30 (Research version) there are 360 possible values of bearing, 101 possible values of tilt, a variable number of beams (greater than 0) and 3 distinct modes of operation (V-mode, S-mode and H-mode). This is more data than can be conveniently stored in an Echoview ASCII calibration files. These files are written by the instrument.