Range start happens to be set to a level deeper than the actual water depth,
a continuous reset sequence will commence and stay on until the water
depth again exceeds the level entered for the Range start. If you are not
about to return to deeper water, we suggest that you disconnect the
transducer cable, and thus gain access to adjust the Range start, either to
zero or to a more appropriate water depth.
3CROLLSPEED Is the rate of movement of the targets on the display screen, mov-
ing from right to left. It is adjustable, to allow the user to show a longer "histo-
ry" on the display screen, if desired.
3CROLLSYNCHRONIZATION The screen can be updated on the basis of time or dis-
tance (when data from last ping appears on the display).
3IGNALTHRESHOLD Can be set to ON to eliminate the appearance of unwanted
noise.The threshold level is automatic and the feature should be used with cau-
tion, as it may eliminate small fish and small unidentified objects on the
screen.
4RANSMITTERSTATUSINFOWINDOW In the echo display a small info window
will indicate the current status of selected transmitter frequency, power and
pulse length. Example:
- Selected frequency, 50 kHz or 200 kHz.
- Transmit power HIGH/LOW
- Pulse length SHORT/MEDIUM/LONG
A= Automatic mode, "Nothing"= Manual mode.
46' Time Varying Gain - is a control that allows the CE32 MKII to
make corrections for most of the losses and absorption that occurs as
sound energy passes through sea water. Adjust TVG in ’Presentation
setup’. There are three settings to choose from, Normal, Special and OFF.
The setting ’Normal (20 log R)’ is for general fish finding at depths down
to 50m (150’) and it will also give a uniform bottom echo presentation at
shallow, mid and deep water.
The setting ’Special (40 log R)’ will adjust the TVG to show the same
echo strength for a given size fish at varying depths.
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#%-+))'LOSSARYOFTERMS !PPENDIX!
109
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