Disabling the power-off by the sleep timer, Apo (automatic power off), Disabling the power-off by the sleep timer -7 – Kenwood TS-990S User Manual
Page 231: Apo (automatic power off) -7

CLOCK DISPLAY AND TIMER 15
15-7
DISABLING THE POWER-OFF BY THE SLEEP TIMER
The timed power-off ( ) can be disabled even after the
Sleep Timer has started counting down. If Sleep Time is
temporarily disabled, the transceiver power ( ) does not
turn OFF even when the configured time elapses.
1 Press [TIMER/SET].
The "TIMER" LED turns Off, and the timed power-off ( ) by
Sleep Timer will be disabled. The Sleep Timer continues to
count down; however, the transceiver power ( ) does not
turn OFF even when the Sleep Timer expires.
Pressing [TIMER/SET] again before the Sleep Timer expires
causes the Sleep Timer to resume counting down from the
remaining time.
Note:
◆ A press of [TIMER/SET] again disables or enables both Sleep
Timer and Programmable Timer.
APO (AUTOMATIC POWER OFF)
APO is a function that turns the transceiver power ( ) OFF
if no key or control is operated for the configured time.
One minute before the transceiver power ( ) turns OFF, a
Morse codes "CHECK" sounds from the speaker.
1 Select Group No. 00, "Basic Configurations", from the
Menu screen.
2 Access Menu 33, "Automatic Power Off".
3 Press [SELECT] (F4) to allow editing of the parameter
box.
4 Press [-] (F2) or [+] (F3) to select "OFF" or the length
of time until the transceiver ( ) turns OFF.
You can select the length of time until the transceiver
power ( ) will be turned OFF from "OFF" (do not turn the
transceiver power ( ) OFF), "60", "120", and "180" [min]. The
default is "Off".
5 Press [
] (F1).
6 Press [MENU] to exit.
Note:
◆ A timer for the APO continues counting down even during the scan.
◆ The transceiver starts counting down from when a key or a control
is last operated.