Channel Change on HUB Enable

When more than one HUB exists:

(for example in a Multi Control Head configuration) the radio's HUB state is considered to be "off hook" when any one HUB goes off-hook; conversely, the radio's HUB state is considered to be "on-hook" only when all the HUBs are on-hook.

In a Dual Radio configuration:

• the HUB state for the unselected radio is always considered to be “on-hook”, while the HUB states for the selected radio always reflects the actual states of the HUB ("off-hook" or "on-hook").

• when the HUB state is "off-hook" and there is a radio switch, if this field is enabled, the new selected radio switches to the Target Zone and Target Channel, and the new unselected radio reverts back to the last radio-user selected channel prior to the "off-hook" condition.

While the microphone is "off-hook", a manual channel change is allowed; once the microphone goes "on-hook", the radio reverts back to the last radio-user selected channel prior to the "off-hook" condition.

For example: If the radio is on Channel 1 and the microphone is taken "off-hook", the radio then switches to Channel 2 (per the Target Zone / Target Channel selections); if the radio-user then manually changes the radio to Channel 4, when the microphone is placed back on the HUB, the radio reverts back to channel 1.

If the radio is powering up with the HUB "off-hook", the radio switches to the specified Target Zone / Target Channel; then, once the HUB is "on-hook", the radio switches to the last-selected channel before the power cycle occurred.

If the Default Control Head HUB State field is set to "Off Hook", the radio powers up on the specified Target Zone / Target Channel, regardless of which state the HUB is in, and no channel changes are triggered when the HUB goes "on-hook" or "off-hook".

If a channel change has occurred due to a HUB "off-hook" state, and HUB Defeats PL and / or HUB Suspends Scan is enabled on the original channel (prior to the off-hook state), these two features work on the new channel according to that channel's CPS configuration.

When the radio is in one of these states: Emergency Mode active, Tactical Inhibit Stun, Tactical Inhibit Kill, Radio Lock, or an external Key Variable Loader (KVL) is attached, the HUB state is ignored; therefore, a HUB state change does not trigger a channel change. However, once the radio exits one of these states, the HUB state ("on-hook" or "off-hook") is taken into account.

When Dynamic Regrouping is active and the radio's channel selector is locked, the HUB state is ignored; therefore, a HUB state change does not trigger a channel change.

Once it is enabled, a valid zone must be selected.

Deskset Microphone RMN5070 is not compatible with this feature.