Humminbird Wide 100 - Manual (Page 23)

Since some species of fish tend to be better reflector of sonar than others, the strength of return
is not always an accurate indicator of fish size, however, typically, the larger the fish, the larger
the signal return.
CONTROL FUNCTIONS
The Wide One Hundred unit uses only seven buttons to control all functions. The
controls are divided into two groups: POWER, STOP, and LIGHT are one group,
and the Menu System controls are the other group. When any button is pressed, an
audible "chirp" will verify the control input.
POWER, as previously discussed, powers the Wide One Hundred for normal
operation. Also,
if the unit is powered off, press and hold POWER until you hear a continuous "chirp"
to enable simulator operation as discussed in "Simulator Operation". Pressing
POWER when the unit is in normal or simulator operation will power the unit off.
STOP freezes the display to allow closer study. Pressing STOP again will resume
normal operation. Also, if a menu is on-screen, STOP will retain the menu on-
screen until STOP is pressed again.
The transmitted sonar signal travels downward, and is reflected back toward the surface by the
bottom or other objects for display on-screen. If a target is detected between the surface and the
bottom, it is displayed as a fish symbol. Depending on the strength of the signal reflected from the
object, one of three different size symbols is used. These reflected signals are "normalized" for
depth, so that a small fish does not appear to be a large fish if it is close to the boat.
LIGHT enables a two-level display backlight. Pressing once will turn the light on low, pressing a
second time will increase the backlight to the high setting, and pressing a third time will turn the
backlight oft.
The four remaining buttons work together to control the Menu System-an array of menu
controlled functions.
MENU brings a menu on-screen for adjustment, or if a menu is already present, the next menu in
sequence will appear. Menus will go off-screen and normal operation will resume after a short
period of time. If you wish to keep the menu onscreen for an extended period of time, press
STOP.