Kenwood TK-190 - Manual (Page 29)

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■ Time-out Timer (TOT)
The TOT is used to automatically inhibit transmission
after a specified time elapses. If the PTT switch is
held down for longer than the programmed time, the
transceiver will stop transmitting and a tone will
sound. Release the PTT switch, then press it again
to continue transmitting.
• A warning tone will sound before the TOT expires if
programmed by your dealer.
Note:
◆ Depending on dealer programming, you may have to wait for up
to 60 seconds before you can resume transmitting after
transmission is inhibited.
◆ Depending on dealer programming, to prevent the TOT from
expiring, you may have to stop transmitting for up to 15 seconds
before resuming. If you resume too soon, the TOT will not reset;
the timer will continue counting down from where it left off.
■ Busy Channel Lockout (BCL)
When activated by your dealer, you will not be able
to transmit while there is a signal, different from your
QT/DQT tone signal, present on the current channel.
You must either select a different channel or wait
until the signal is no longer present in order to
transmit.
• If you press the PTT switch while a signal is present on
the current channel, a tone will sound and you will not
be able to transmit.
• To determine if there is a signal present on your
channel, press a key programmed with one of the
following functions: Monitor, Monitor Momentary,
Squelch OFF, or Squelch Momentary.
• If programmed by your dealer, you can override the BCL
by pressing the PTT switch two times within 0.5 seconds.