User's Manual


TX timeo
ut 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.
17）TOT key update delay (s)

Set the time af
ter 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.
18）Permission condition

Def
ine when to allow transmitting voice or data in the channel. This feature
can prevent the two-way radio tr ansmitting in a used channel. If the
two-way radio has different TX and RX frequencies, it m onitors 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 s till allow a u ser to us e this
TX frequency for transmission.
1.
Alw
ays: the two-way radio always transmits signals when pressing PTT key.
2.
Ch
ann
el 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.
3.
Available color code: before allowing transmission, the two-way radio will check if a
specified color code is not used. If it is the same as available color code for receiving,
the transmission is disabled.
Operating Instructions of
BF-TD501 Two-way Radio Programming Software
St
artup Interface Settings
Settings for programming software
Enable the programm ing software and cr eate a new window . Select BF-TD501 and a
proper frequency range, and click O K butt on to ente r operating inte rface (th e sam e
below).
1、Left click the tree view “General Settings” to enter “General Settings”
editing interface.