Operation Manual

References

179

850-165186 / Rev.B

As a general rule, short pulses serve to make the echoes from

various objects more distinct. It is therefore used to obtain

optimal vertical resolution, as it will separate individual fishes

from each other and from the bottom. Longer pulses will

penetrate deeper, but with less resolution.

Transmit power: This parameter allows you to change the

power output from the echo sounder. You can choose OFF (and

no echogram will appear!), 10 W, 100 W, 500 W, 1000 W or

AUTO. In most cases, select AUTO. The echo sounder will then

automatically adjust the power output depending on the current

operational frequency and the current depth.

Scroll speed: This function controls how fast the presentation

shall scroll from right to left across the display. By defining this

speed you also control the time scale. If you slow down the

scroll speed, you will also increase the time between each echo

sounder transmission (ping). If you choose FREEZE the

presentation (and also the echo sounder transmissions) will stop

altogether. Note that this parameter can also be set in the

Graphic setup.

Note: The echo sounder frequency you choose must be supported by

the transducer you have installed!