Icom IC-F9011 User Manual page 50

2An acknowledgement is automatically transmitted. 2An acknowledgement is automatically transmitted
• The Busy/Transmit lights red.
3Push any key (except for [ ]) to stop the display
from blinking and return to normal operation.
Receiving an Emergency Call
➥ When an Emergency call is received;
• The Busy/Transmit indicator lights green.
• The ringer sounds, depending on the pre-set g
value.
• The pre-programmed emergency text (e.g.
"EMERGENCY") and the channel indication is
displayed alternately. (Simple and 10-
key models only)
Depending on the pre-set values the calling station
ID (or name) is displayed instead of the channel
display. di l
■ Man Down Emergency Call
(Handheld models only)
This function requires the optional UT-124R Man
Down Unit. When the transceiver has been left in a
horizontal position for the specified time period*, the
transceiver enters the emergency mode, and then
the countdown starts. After the specified time
period* has passed, an emergency alarm is
automatically transmitted once, or repeatedly.
If the transceiver is placed in a vertical position
before the first transmission, the transceiver exits
the emergency mode and the emergency alarm is
cancelled. *Depending on the pre-set value. cancelled *Depending on the pre set al e
■ Lone Worker Emergency Call
When the Lone Worker function is activated, and
the specified time period* has passed with no
operation is performed, the transceiver enters the
emergency mode, and then the countdown starts.
After the specified time period* has passed, an p
emergency alarm is automatically transmitted
once, or repeatedly. If someone operates the
transceiver before transmission, the transceiver
exits the emergency mode, and the emergency
alarm is cancelled. *Depending on the pre-set value.
50
APCO P25 Mode Operation
, p g p
p p ,
➥ Push [Lone Worker] to toggle the Lone Worker
function ON or OFF.
■ Encryption function
The Encryption function enables secure
communication, which provides private digital
voice communication between users.
1Push [Encryption] or [Scrambler/Encryption] to
turn the Encryption function ON.
• " " appears.
(Simple and 10-key models only)
2Push [Encryption] or [Scrambler/Encryption]
again to turn the Encryption function OFF.
• " " disappears.
(Simple and 10-key models only) ( p
Key Fail Indication
The transceiver indicates "Key Fail" for the
specified time period* when the Common Key
Reference (CKR) of the selected channel is not
stored in the encryption unit. (Simple and 10-key
models only)
Decryption Multi Keys function Decryption Multi Keys function
When this function is enabled, the transceiver
releases the mute after receiving the audio signals
for decryption, even if the CKR setting is not
matched to the selected channel.
*Depending on the pre-set value.
■ OTAR function ■ OTAR function
P25 Over-The-Air-Rekeying (OTAR) function
allows the Key Management Facility (KMF) to
change the encryption keys in a transceiver
remotely, ("over the air") to protect the secure
communications. Moreover, several OTAR
commands are used to perform the following
operations. operations. See also 4 7 OTAR See also 4-7 OTAR
From KMF to transceiver:
• Change Active Keyset
• Change Group RSI
• Radio Check
➣The transceiver automatically responds to any
command.
From transceiver to KMF: From transceiver to KMF:
• Registration to the OTAR system
• Deregistration from the OTAR system
• Rekeying
y y)
for this function. for this function.