The following are the modes that function while the transceiver is placed in the Radio Inhibit state:
0
FPU Programming Mode (only Read is available)
0
Transceiver Information Mode
0
PC Test Mode
0
PC Tuning Mode
Note
0
The Radio Inhibit state cannot be reset until the transceiver receives the Radio Uninhibit request message. The Radio
Inhibit state is retained even after the transceiver is turned OFF.
0
If the transceiver in Emergency Mode receives a Radio Inhibit request message, the transceiver resets the Emergency
behavior and is placed in the Radio Inhibit state. In this case, the transceiver does not resume the Emergency behavior
even if the Radio Inhibit state is reset after the transceiver receives the Radio Uninhibit request message.
0
If the transceiver receives a Radio Inhibit request message during the scan, the transceiver stops scanning and is placed
in the Radio Inhibit state. In this case, the transceiver does not resume scanning even if the Radio Inhibit state is reset
after the transceiver receives a Radio Uninhibit request message.
1.12
Actions for Other Transceivers
Remote control using radio communications enables monitoring the situation around another transceiver or checking
whether another transceiver is in operation.
Monitoring the Situation Around Another Transceiver by Remote Control (Remote
Monitor)
Remote Monitor is the function to automatically transmit at a certain length of time the ambient audio collected through a
microphone by the transceiver upon receipt of a request sent by the other transceiver.
For example, if transceiver A receives the Remote Monitor request message, transceiver A sends an ACK to transceiver B.
Then, transceiver A initiates an Individual Call to transceiver B.
In this case, the length of the transmit time for an Individual Call can be obtained by multiplying the value configured for
Transmit Multiplier contained in a Remote Monitor request message by the value configured for Remote Monitor Timer.
TX
RX
Remote
Monitor Timer
[sec]
Remote
Monitor Timer
[sec]
Remote
Monitor Timer
[sec]
Remote Monitor Timer ×TX Multiplier
[sec]
If 3 is configured for TX Multiplier
Figure 1-7 The Length of Time for Sending an Individual Call
The following is the transceiver behavior of when the transceiver initiates an Individual Call by a Remote Monitor request
message:
0
The transceiver transmits on a channel where the transceiver receives a Remote Monitor request message.
0
If
Time-out Timer
is enabled,
Time-out Timer
becomes disabled, and the transceiver transmits for the requested length
of the transmit time.
0
If
Busy Channel Lockout
is enabled,
Busy Channel Lockout
becomes disabled, and the transceiver transmits for the
requested length of the transmit time.
0
Even if the transceiver is placed in Emergency Mode, if the transceiver is in the receiving state, the transceiver transmits
for the requested length of the transmit time.
1 P25 CONVENTIONAL SYSTEM
1.11 Disabling the Transceiver Capability by Remote Control (Radio Inhibit / Uninhibit)
P25 FUNC (K)/Ver 2.20
53
