mapping mode.

S2 NEXT  Steps the highlight bar through the menu selections.
S3 120°  Selects 120-degree weather mapping mode.
S4 GO  Selects the mode indicated by the highlighted menu selection.
3.20.3 Modes of Operation.
3.20.3.1 360° Weather Mapping Mode. Three hun-dred sixty degrees. When the 360° weather mode is initially displayed, it will always be in the 200 nautical miles range (Figure 3-32, 360 Degree Presentation). At least two ranges are always labeled for reference. The 25 nautical miles range is always indicated by a solid ring. The following controls and functions are available for 360° weather map-ping mode:
CONTROL/  FUNCTION 
LEGEND 
OFF BRT switch  Turns  system  on/off  and  adjusts 
screen instensity. 
S1 MENU  Displays the main menu. 
S2 CLEAR  Clears  strike  memory  and  storm 
information from the screen. 
S3 120°  Selects  120-degree  weather 
mapping mode. 
S4 NM  Starts  at  current  nautical  mile 
range,  allows  pilot  to  toggle 
through the range scales. 

3.20.3.2 120° Weather Mapping Mode. The system shows weather in the 120° forward sector only (Figure 3-32, 120 Degree Presentation). When the 120° weather mode is initially selected, it will always be in the 200 nau-tical miles range. At least two ranges are always labeled for reference. The 25 nautical miles range is always indicated by a solid ring. The following controls and functions are available for 120° weather mapping mode:
CONTROL/ FUNCTION LEGEND
OFF BRT switch  Turns system on/off and adjusts screen instensity.
S1 MENU  Displays the main menu.
S2 CLEAR  Clears strike memory and storm information from the screen.
S3 360°  Selects 360-degree weather mapping mode.
S4 NM  Starts at current nautical mile range, allows pilot to steps down through the range scales.
3.20.3.3 Time and Date Mode.
NOTE
Date must be set before setting the time.

SELF.TEST PRESENTATION MAIN MENU

360 DEGREE PRESENTATION 120 DEGREE PRESENTATION

AB0619

TIME/DATE PRESENTATION
SA

BFG  BRT

BFG  BRT

AK3051_2

OPTIONS PRESENTATION  ERROR MESSAGE
SA

Figure 3-32. Storm scope Displays (Sheet 2 of 2)
This mode allows the pilots to set the current time and date, and use the stopwatch and elapsed time features of the storm scope (Figure 3-32, Time/Date Presentation). Time and date are set by stepping the highlight bar through the date, month, year, hours, minutes, and seconds using the NEXT button. The UP and DOWN buttons are used to increment/decrement the highlighted time/date numeral. The stopwatch and elapsed time features count hours, min-utes, and seconds up to 99.59.59. Removing power will stop the elapsed time counter, but will not reset the elapsed time counter to 00.00.00. This feature of the elapsed timer allows the pilots to press START to continue the elapsed timer counting. The following controls and functions are available for the time and date mode:

CONTROL/  FUNCTION 
LEGEND 
OFF BRT switch  Turns  system  on/off  and  adjusts 

screen instensity. Time/Date Mode

S1 MENU  Displays the main menu.
S2 NEXT  Steps the highlight bar through the stopwatch, elapsed time counter, and each portion of the time and date display.
Stopwatch Mode
　
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