User's Manual

28
KNG User’s Manual
29
RELM/BK Radio
Transmitting with Scan On
The radio transmits on the channel selected by the Channel Selector
knob unless Talkback Scan is enabled (see Talkbac k Sc an) or Transmit
on Priority 1 is enabled (see Priority Scan).
When the PTT switch is released, the radio continues to monitor the
selected channel for the preset scan delay time before it resumes
scanning.
Talkback Scan
Ch 1
KNG - P25
171.58500 MHz
MON T/A MENU TXD
RXD SCN
If your radio is programmed for Talkback
Scan, press PTT while a channel is active or
while scan delay time remains, you will be
responding on the transmit frequency of the
received channel. The 'RX' indicator will be
shown in the display while scan delay time
remains.
Talkback Scan will not work if Priority Scan is on and your radio is also
programmed for Transmit on Priority (see Priority Scan).
Priority Scan (PSCN)
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.
Up to two priority channels can be programmed on a radio wide
(Global) or per-zone basis, programmable via PC. When Global
Priority channels are enabled, zone priority selections are disabled.
If priority channels are assigned on a per-zone basis, the radio
monitors the priority channels in the currently selected zone. If priority
Ch 1
KNG - P25
171.58500 MHz
MON T/A MENU TXD
Ch 1
KNG - P25
171.58500 MHz
MON T/A MENU TXD
P1 RXD SCN
P1 SCN
channels are programmed on a Global basis
the radio will monitor the assigned channels
regardless of the currently selected zone.
When Priority Scan is on, the display fl ashes
SCN. If a message is received on a priority
channel, the Priority Indicator appears, and
the radio receiver locks onto that channel
for the duration of the transmission, unless a
higher priority channel interrupts.
The two channels, designated as PR1 and PR2, are periodically
sampled for activity, even if a different transmission is being monitored.
Activity on PR2 preempts activity on any of the non-priority channels.
Receptions on PR1 have priority over any other channel, including
PR2.
Either priority channel can be programmed as a fi xed channel, tied
to the Channel Selector knob, or programmed OFF. If the radio is
programmed to transmit on PR1, transmissions will occur on the fi rst
priority channel when operating in Priority Scan Mode.
Priority Scan can be used in combination with Code 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.
If enabled the user can use the keypad to change the priority channels.
The Priority Channel selection can be programmed to a programmed
button or as a menu item.
NOTE: To use Zone based Priority Channels set both Global
Priority Channel 1 and 2 to 'OFF'.
To select a new Zone Priority Channel:
Global Pr1 Chan
Global Pr2 Chan
Zone 1 Pr1 Chan
ESC ▲ ▼ ENTER
2
1
3
Zone 1 Pr1 Channel

Off
Main
Select- > Ch:1
ESC ▲ ▼ ENTER

Zone 1 Pr1 Chan
Channel 1
Channel 2
Channel 3
ESC ▲ ▼ ENTER
3
2
1
Press the button programmed for 1.
"PRI" or select 'Priority Channels' form the
programmed menu.
Use the up/down buttons to select the 2.
priority channel you wish to edit.
'Zone # Pr1 Channel'
'Zone # Pr2 Channel'
The arrow indicates the current setting. 3.
Use the up/down buttons to select 'Off', 'Main'
to use the knob selected channel as the
priority channel or 'Select' to assign a new
channel.
If 'Select' is chosen you will be prompted to
select the desired Priority channel.
Press 'ENTER' to set the selection.4.
Hold the 'ESC' button to return to 5.
normal radio operation