Tot Feature; Saving The Battery During Reception - Yaesu FTA-750L Spirit Operating Manual

TOT Feature

The TOT (time-out timer) shuts off the transceiver after
continuous transmission exceeds the programmed time.
This feature prevents unintended transmission by mis-
take and reduces battery consumption.
To select the TOT, select either of "1min", "2min",
"3min", "4min", "5min" on the item "TX TOT" of the
COMM SETUP menu in the SETUP mode.
COMM SETUP
FREQUENCY STEP
TX TOT
AF PITCH CONT.
MIC SELECT
SIDE TONE
VOX
VOX LEVEL
VOX DELAY
Advanced Operation
COMM SETUP
TX TOT
1min
2min
3min
4min
5min

Saving the Battery during Reception

One of the important features of the FTA-750L/FTA-
550/FTA-450L are its battery saver, which "puts the
radio to sleep" for a time interval, periodically "waking
it up" to check for activity. If somebody is talking on
the channel, the FTA-750L/FTA-550/FTA-450L will
remain in the "awake" mode, then resume its "sleep"
cycles. This feature significantly reduces quiescent bat-
tery drain.
To activate the battery saver, select one of the following
interval time ratios on the item "BATTERY SAVE" of the
CONFIGURATION menu in the SETUP mode.
50% ... Sleeps for 100 ms after 100 ms awake
70% ... Sleeps for 250 ms after 100 ms awake
80% ... Sleeps for 450 ms after 100 ms awake
90% ... Sleeps for 900 ms after 100 ms awake
CONFIGURATION
DIMMER
LAMP
CONTRAST
KEY BEEP
TIMER ALARM
BATTERY SAVE
LOCK SELECT
PTT LOCK
CONFIGURATION
BATTERY SAVE
OFF
50%
70%
80%
90%
45