User's Manual

l Configure the digital emergency alarm system in the “signaling system” folder before
selecting; otherwise, the default value is used (null).
l “RX only” function should be disabled.
11）TX power
l Set TX power level of the two-way radio in the channel. A user can switch between high
power and low power by long press or short press of programmable keys (High/low
power) or power (“Setting” menu).
Note:
High: used when a stronger signal is required to increase TX distance.
Low: used for short range communication and preventing TX into other
geographical groups.
12）TX Timeout timer(s)
l TX timeout timer (TOT) is the time the two-way radio continues transmission before
transmission automatically ends. This feature can ensure that a channel will not be
exclusively occupied by any one of two-way radios. For a busy channel, a user can set
shorter TX timeout. It ranges from 15 to 495 s.
13）TOT key update delay (s)
l Set the time after the TX TOT fails (which will terminal two-way radio TX) and before
a user is allowed for transmission again the two-way radio waits in the channel. It
ranges from 0 to 255 s.
14）Permission condition
l Define when to allow transmitting voice or data in the channel. This feature can prevent
the two-way radio transmitting in a used channel. If the two-way radio has different
TX and RX frequencies, it monitors activity of RX frequency only. If there is no
activity in RX frequency, even though the TX frequency is used, the two-way radio
will still allow a user to use this TX frequency for transmission.
Always: the two-way radio always transmits signals when pressing PTT
key.
1. Channel unoccupied: before transmission, the two-way radio will check
if there is an unoccupied channel. If the channel has voice, it will prompt a
user with prompt tone if the transmission is disabled.