User Manual

26 BK Radio
If the calling unit is not the same unit
displayed before the call was received, the
calling unit’s ID will be displayed for the
duration of the reception. The previously
displayed ID will remain the default transmit
ID, but the interrupting ID will be captured as
‘last active’.
To speak to the interrupting caller, press [*] to
make the last active ID the new default
transmit ID. When a group call (or, if allowed,
an analog signal) is received, the radio will
display the RTX channel’s label for the
duration of the reception.
If the RTX channel’s Digital Squelch Mode is
set to ‘normal’, the radio performs as when the
Squelch Mode is ‘selective’, except all
individual calls will be received when the
incoming NAC matches the channel’s
programmed receive NAC, not just individual
calls addressed to the unit. Individual calls not
addressed to the unit will be indistinguishable
from group calls. Only the channel label will
be displayed, not the ID of the calling unit.
If Unit-To-Unit Mode is entered when the RTX
channel is programmed for analog-only
transmissions, pressing PTT will cause the
radio to beep until PTT is released. The user
must select a channel capable of digital
transmissions before placing a Unit-To-
Unit call. If the RTX channel is programmed
for Mixed Mode transmit, transmissions will be
made as digital Unit-To-Unit calls while the
radio is in Unit-To-Unit Mode.
Incoming
Group Call
RX ID
C
H
5
RX
C
H
5
Incoming
Analog Call
DPH Owner’s Manual 19
PRIORITY SCAN
Priority Scan enables the radio to receive on
any channel while monitoring for a message
on the designated priority channel(s). The
radio samples each priority channel at a
preset rate (.25-2.0 seconds) regardless of
activity on any other channel. Priority Scan
operates only while the radio is not
transmitting and can be used in combination
with scan operation.
When Switch C (Priority) is up, the display
flashes SCN. If a message is received on a
priority channel, the Priority Indicator lights,
and the radio receiver locks onto that channel
for the duration of the transmission, unless a
higher priority channel interrupts.
Priority Scan can be used in combination with
Channel Guard with:
• Switch C (Priority) up
• The Squelch knob in the Channel Guard
position (fully counterclockwise detent
position) and
• The Priority Channel(s) programmed with
Channel Guard
If a message is received on a priority channel,
the radio receiver locks on to the priority
channel and checks to see if the proper
Channel Guard value is present. If the signal
contains the proper Channel Guard value, the
radio receives the message. Otherwise, the
radio will re-check the channel every 4
seconds, until the activity on the channel
ceases.
DUAL PRIORITY SCAN
In each group, up to two of the 16 channels
can be designated as priority channels.
These two, PR1 and PR2, are periodically
tested for activity, even if a different
transmission is being listened to. Activity on
PR2 preempts activity on any of the non-
PR SCN
LABEL
3