Hytera TC-580 - Manual (Page 26)

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Functions and Operations
Time-out Timer (TOT)
The purpose of TOT is to prevent any user from occupy-
ing a channel for an extended period. When the preset
time expires, the radio will automatically terminate
transmission and keep beeping. To stop beeping, please
release the
PTT key. You must wait for a certain time
period (preset by your dealer) to initiate another trans-
mission.
If the Pre-alert function is activated by your dealer, your
radio will alert you to the TOT expiration in advance.
Channel Scan
This feature allows you to listen to communication ac-
tivities on other channels so that you can keep a close
track of your team members.
The scan list can be set by your dealer, and a maximum
of channels are allowed for each scan list.
Note: This feature is null in Emergency mode.
Operation:
. T o a c t i v a t e t h i s f u n c t i o n , p r e s s
t h e p r o g r a m m e d S c a n k e y ; o r
s e l e c t “ O n ? ” f r o m t h e m e n u
“ S c a n ” , p r e s s
t o c o n f i r m ; o r
switch to a channel with Auto Scan feature enabled
(programmed by your dealer).
. After scan is enabled, the radio will sound an alert
tone (programmed by your dealer), and begin to
scan the programmed scan list. The scanning
process is as follows:
 During scanning, LCD displays icon , and LED
flashes green.
 When communication activities are detected on
a channel, or the programmed
Monitor key is
pressed, or the PTT is pressed to transmit, the
radio will stay to receive activities present on
this channel. If your radio stays on a non-priority