Default, Priority 1, And Priority 2 Channels; Trunked/Conventional Scanning - L3Harris XL Extreme Series Operator's Manual

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When using Preemptive Priority Scan, the frequencies in the list need to be

unique.

NOTE

6.14.1 Default, Priority 1, and Priority 2 Channels

6.14.1.1 Default Channel

This is the currently selected channel and is the channel you transmit on by default when you

press PTT while the radio is actively scanning and is not responding to a just received call.

Responding to a call the radio just received while scanning is called hang time. If hang time is set

to 0 using RPM2, the radio always transmits on the default channel in scan.

6.14.1.2 Priority 1 Channel

This channel will be scanned more often than other channels in the list and will be scanned in

between every other channel in the scan list. An example scan sequence would be P1 (priority

1), C2, P1, C3, P1, C4, etc. In addition, the priority channel is scanned even while actively

receiving on a non-priority channel. For example, if the radio is actively receiving on C3 and

activity is detected on P1, the radio drops C3 and switches to P1.

6.14.1.3 Priority 2 Channel

This channel is also scanned more often than others. An example scan sequence is P1, C2, P1,

C3, P1, C4, P2, C5, P1, C6, P1, C7, P1, C8, P2, C9, etc. In addition, this channel is scanned

even while actively receiving on a non-priority channel. For example, if the radio is actively

receiving on C3 and activity is detected on P2, the radio drops C3 and switches to P2. Additionally,

activity on P1 can also preempt P2, but P2 cannot preempt P1.

Trunked/conventional scanning adds the ability to scan multiple conventional and P25

conventional channels while still maintaining trunked radio operation. The radio can scan a

conventional scan list while still receiving a trunked control channel and receiving trunked calls.

Selection of which conventional scan list is associated with a given trunked system is done using

RPM2 and cannot be changed on the radio. However, a user with access to the necessary menu

layout (see Section 5.8) can edit the scan list members (both trunked groups and conventional

channels on the selected Conventional Priority System). As the number of conventional channels

being scanned increases, the time between scanning each channel increases (roughly 250

milliseconds per channel), with the consequent increase in the number of calls that will late-enter.

To avoid missing calls, it is recommended to keep the number of conventional channels being

scanned to eight (8) or fewer.

The trunking site must have roaming set to Enhanced CC.

NOTE

14221-1800-2050, Rev. G

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