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Notes :
BEEP TONE :
Error Beep ( Beep 1 for Nav ) : 3-beep error tone with 60ms ON @512Hz, then
20ms OFF for 3 cycles. Sound out for any error operation. The tone freq can be
read out from EEPROM
ACK Beep ( Beep 2 for Nav ) : 100ms ON @ 1024Hz then OFF. Sound out
when any valid key pressed or new mode / screen page entered. Tone freq can
be read out from EEPROM
ALARM Beep ( Beep 3 for Nav ) : 6 beep alarm warning tones followed by a 2
sec pause for DSC Distress or Urgency category received calls or serious alarm
warnings. Warnings can never be disabled in the MENU screen and are
cancelled by any keypress or after a 2-min. duration. 300ms ON @ 512Hz then
100ms OFF between each tone burst. Read out tone freq from EEPROM.
RINGER Beep ( Beep 4 for Nav ) : Alert the user of an incoming DSC call. 60ms
1024Hz, then 60ms 512Hz then 20ms OFF. Cycle goes on until the timeout
cycle is reached or a key is pressed.
Содержание LHR-80
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