Motorola TA280 用户手册

Keypad Lock

Lock allows you to disable the Scroll, Menu,
and Scan buttons so that the radio settings
cannot be changed accidentally. 

Activating Lock Feature:

Press and hold the Light/Lock button until
LOCK appears on the display. 

Disabling Lock Feature:

Press and hold Light/Lock button until LOCK disappears. 

Note: Radio emits audible tone to confirm lock and unlock feature activation.

Disabled buttons will beep if pressed (when Alert Tones are enabled).

Reset

The Reset feature returns all user programmable features back to the original
factory settings.

1. Hold down both the Monitor and Push-To-Talk buttons.
2. Turn the radio on.

Time-out Timer

The Time-out Timer feature helps extend battery life and prevents you from
accidently tying up frequencies. The radio will emit a continuous warning tone
if the Push-To-Talk button is pressed for 60 continuous seconds and radio will
stop transmitting.

Features

Auto Power Off

Your Talkabout can be programmed to turn itself off after a certain period of
inactivity. This feature is used to prevent unwanted battery drain.

Enabling Auto Power Off:

1. Press Menu button six times to enter Power Off feature.
2. Use the Scroll buttons to set the number of hours, after which, the power 

shuts down (1-8 hours).

Notes:

 

     •  The radio will return to normal operation mode after 10 seconds or after 

you press the Push-To-Talk button. If no buttons are pressed during the 
selected time interval, the radio will sound a unique tone one minute 
prior to turning itself off.

     •  Minus sign appears on display if Auto Power Off is disabled.

Display Light

Talkabout radios have a backlit display for use in low-light conditions. Press
Light/Lock button to illuminate the display. The light will stay on for approxi-
mately five seconds. 

Note:

 Pressing other buttons will extend the time the light stays on.

Figure 16.

16

17

See Pages 36-37 for quick operation summary.