Humminbird 101 用户指南

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Automatic setting: off 
When zoom is activated by pressing On/Off, it creates a “window” of expanded, up-close 
information.  This window is marked by a cursor at the right of the screen and can be 
moved up or down with the arrow buttons.  The exact depths of the upper and lower limits 
of the window are displayed as depth scales while you are in zoom.   
 
The size of the zoom window changes as the depth range changes.  The window 
displays 7 ½ feet of up-close readings in the 15’ and 30’ ranges, and 15 feet in the 60’ 
and 120’ ranges.  Keep in mind that, using your arrow buttons, you can move the zoom 
window while the zoom is activated, without having to press Select again. 
 
 
 
5.  Bottom-Lock 
Automatic setting: off 
You can easily turn on the bottom-lock with the On/Off 
button.  When on, this function shows up-close zoom 
readings in reference to the bottom.  The size of the zoom 
window depends on the depth range-7 ½ feet in the 15’ 
and 30’ ranges, and 15 feet in the 60’ and 120’ ranges.  
The zoom window will automatically move up or down to 
stay on the bottom, with the cursor showing you the 
protion of the total depth range that is being displayed.  
This is an ideal feature for finding structure or locating fish 
near the bottom. 
6.  Display Speed 
Automatic setting: one setting less than highest speed 
The speed at which the TCR display moves depends on 
the display speed setting, and it is easily changed by 
pressing the Up arrow for a faster setting and the Down 
arrow for a slower setting.  Generally speaking, the higher 
speed settings allow faster updates, while slower display 
speeds provide more information. 
7.  Depth Range 
Automatic setting: on 
The TCR automatically finds the bottom, and then sets 
and displays the ideal depth range when you turn the unit 
on.  If you choose to leave the auto range change on, the 
bottom will remain “blacked in” for easy-to-understand 
readings, and the depth ranges will change automatically. 
 
Or, you can turn the auto change off, allowing you 
to change the depth range manually.  In this mode, the 
bottom is not blacked in.  This lets you see a double 
bottom echo, which is preferred by some fishermen 
because the width of the second echo can indicate bottom 
texture.