16
Operation with Standard Features
GP300 Portable Radios
Busy Channel Lockout
Busy Channel Lockout is a privacy feature that prevents the
radio from listening to or transmitting over conversations
outside its talkgroup, keeping lines of communication clear.
Whenever the radio is not allowed to talk, you will hear a
busy tone if you attempt to transmit. The radio is allowed to
transmit:
1.
when the channel is clear
2.
during the group’s repeater hang time, until a carrier
drop is seen
3.
when receiving transmissions from your own group
(Common PL/DPL code).
Whenever a channel is programmed for PL/DPL busy chan-
nel lockout, pressing the monitor button does not put the
radio into the carrier squelch mode. This means that radios
with PL/DPL busy channel lockout programmed cannot
monitor or listen to another group’s transmissions. Further-
more, the volume set function is also disabled on any chan-
nel that is preprogrammed as a PL/DPL busy channel
lockout channel.
On carrier squelch channels, Transmit Inhibit is available to
prohibit transmissions when any carrier is present.
GP300_owners.book Page 16 Thursday, August 7, 1997 9:49 AM
