Globalsat Technology gh-615b-gh-615m User Manual

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GH-615 
 
 
Page 28 
Adjust screen contrast 
[MAIN MENU] > [CONFIGURATION] > [SETTINGS] > [SET DISPLAY] > [CONTRAST] 
 
1.  Use Up and Down button to 
adjust the contrast of the screen 
display. 
2.  When you are satisfied with the 
contrast, press OK button to 
accept it. 
 
 
 
Setup beeper 
[MAIN MENU] > [CONFIGURATION] > [SETTINGS] > [SET SYSTEM] > [BEEPER]   
 
You can set the Beeper to sound 
or to be silent according to your 
need. 
 
 
Setup language 
[MAIN MENU] > [CONFIGURATION] > [SETTINGS] > [SET SYSTEM] > [LANGUAGE]   
 
There are 5 different languages 
of User Interface, including 
"English", "German", "French", 
"Italian" and "Spanish".