Full Spectrum Control Channel Hunt
Full Spectrum Control Channel Hunt
is executed if the transceiver cannot acquire a control channel in the normal control
channel hunt. The normal control channel hunt is the search for a channel configured as the Normal Hunt Control Channel
by the transceiver.
If
Full Spectrum CC Hunt
is enabled, the transceiver executes
Full Spectrum Control Channel Hunt
if a control channel
cannot be acquired by a control channel hunt. In
Full Spectrum Control Channel Hunt,
all detected channels are searched
as control channel candidates by a
Trunked Channel Plan
from 1 to 16 configured “FDMA” in
Channel Type
.
If the transceiver fails to acquire a control channel from any control channel candidates, the transceiver starts the normal
control channel hunt again.
Also, a control channel in a certain frequency range (
Withdraw Channel
) not to be searched in
Full Spectrum Control
Channel Hunt
can be configured.
Configuration using KPG-D1/ D1N
0
Configuring
Full Spectrum CC Hunt
to be enabled or disabled (
Transceiver Settings > P25 Network > Hunt
Options > Full Spectrum CC Hunt)
0
Configuring
Withdraw Channel
(
Transceiver Settings > P25 Network > Hunt Options > Full Spectrum CC Hunt)
Background Hunt
Background Hunt
is the function used to acquire a control channel providing better conditions. After acquiring a control
channel, the transceiver changes to the idle state and waits for a call message and notification information. If
Background
Hunt
is enabled, the transceiver executes
Background Hunt
based on information obtained from the adjacent site channels
(Adjacent Channel Status Broadcast) in order to reacquire a channel with better conditions than the current control channel.
The following are the conditions for the transceiver to acquire a control channel candidate as the new control channel after
Background Hunt
is executed. The conditions differ depending on the configuration in
RSSI Control Channel Hunt
. RSSI
Control Channel Hunt is the function for acquiring the control channel with the highest signal strength level when the
transceiver executes a control channel hunt.
0
If RSSI Control Channel Hunt is disabled
0
If the level difference of the signal strength level that meets the following conditions is the value configured in
Level
Margin 1
or higher:
0
The currently received control channel does not have a Preferred ID, and the signal strength is equal to or less than
the value configured in Good RSSI Level
0
The candidate control channel does not have a Preferred ID
0
If the level difference of the signal strength level that meets the following conditions is the value configured in
Level
Margin 2
or higher:
0
The currently received control channel has a Preferred ID, and the signal strength is equal to or less than the value
configured in Good RSSI Level
0
The candidate control channel has a Preferred ID with higher or equal priority
0
If the level difference of the signal strength level configured in
Acceptable RSSI Level
that meets the following conditions
is the value configured in
Level Margin 3
or higher:
0
The currently received control channel does not have a Preferred ID
0
The candidate control channel has a Preferred ID
0
If the level difference of the signal strength level configured in
Acceptable RSSI Level
that meets the following conditions
is the value configured in
Level Margin 4
or higher:
0
The currently received control channel has a Preferred ID
0
The candidate control channel has a Preferred ID with higher priority
0
If the currently receiving control channel is in the Site Trunking mode and the candidate control channel is not in the Site
Trunking mode:
2 P25 TRUNKING SYSTEM
2.4 Control Channel Hunt
P25 FUNC (K)/Ver 2.20
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