User Manual

During Dynamic Regroup channel selector
lock state, Emergency, Transmit Inhibit, radio
lock, or when external key loaded is attached
to the radio, the Channel Change on Off Hook
feature is suspended until these conditions
end.
The Off
Hook
State for
APX
™
Dual
Radio
Setup
For Dual Radio, the state of the HUB
on the unselected radio is always
considered as on-hook. The state of
the HUB of the selected radio is always
reflected as the actual states of the
HUB. When the HUB is placed off-
hook, the selected radio makes
channel change per CPS configuration,
and the unselected radio does not
trigger channel change.
With Channel Change on Off Hook
enabled, when the HUB is placed off-
hook, and there is radio switch, the
new selected radio moves to the target
channel zone on off hook, and the new
unselected radio reverts to the last user
selected channel before off-hook.
The Off
Hook
State for
Multiple
Radios
Setup
When there are multi-control heads
connected, the states of these HUBs
reflect the active control head(s) state.
Any HUB placed off-hook by active
control head(s) makes the radio goes
off-hook state. Only when all HUBs are
placed on-hook, the radio can be in on-
hook state.
Note:
This feature needs to be carefully enabled.
Users must also be familiar with the
functionality of this feature as they have to be
aware that removing the microphone triggers
mode change most of the time.
Low Voltage Threshold Warning
This feature is created for APX mobile radio to
provide warning for low voltage threshold.
A specific external device is attached to the radio to
monitor the automobile voltage. When the car battery
went lower than a pre-defined threshold, the external
device asserts the Vehicular Interface Port (VIP) input
to the radio. When the voltage of the battery becomes
Advanced Features
126
English
Draft