Specifications

EQ33 Echosounder operation Chapter 5-5

5.4 VRM expansion

This feature will provide an expanded view of the area near the

Variable Range Marker which will give a better separation of echoes.

The actual size of the expansion window can be adjusted in the

Setup display for 50kHz/200kHz.

As an example, from active Echo 50kHz display:

Call up the menu bar, and...

3,4

activate VRM expansion

... or just press:

ZOOM

Call up the zoom display

The zoom level can be selected in seven steps, ranging from 1 to 50

meters, or converting to feet or fathoms (refer to Setup for units, sec-

tion 7.1). The VRM horizontal line can be moved up/down by means

of the cursor.

+/-

Adjust range with the + and - keys

ENT

Open Setup display - if any changes are required (see section 5.9)

ENT

Confirm changes