Garmin gpsmap 292 Manuale Utente

U

SING

 S

ONAR

 > 

F

LASHER

 P

AGE

The Flasher page provides an almost instantaneous return of what 

is below your boat. This page can show depth, fish, bottom content, 

and structure. When you use the Flasher page, you can adjust 

the Range, Gain, Color Gain, Frequency, and Scroll settings. See 

 

for information about these settings and how to change 

them.

The most intense, constant signal on the Flasher Page is the actual 

depth and bottom:

•  A 

soft bottom (such as silt or mud) creates a signal that is 

narrow and more faint. 

•  A hard bottom (such as sand or rock) creates a signal that is 

wider. 

The colors indicate the different strengths of the signals. If you 

understand a bit about how sonar works, you can better understand 

what you see on the Flasher Page. Remember, three-dimensional 

space is appearing on a two-dimensional screen. The circular area 

of the bottom becomes a wide mark on the screen and fish inside 

the transducer beam can be any color and in any position, including 

inside and beyond the bottom mark. The colors indicate the 

different strengths of the signals. This can be roughly correlated to 

a position inside the beam. Red being the center most part, orange 

the area around, and green the outer edge of the beam. Targets (for 

example, fish) with larger surface area appear more red; and targets 

with less surface area appear orange, and green for the smallest 

stuff. The colors will give you information. You need to interpret it. 

Experience and experimentation are the keys to being very good at 

reading your flasher.