Harris P7300 SERIES - Encrypted Calls and Scan Operation

MM-013994-001, Rev. J
74
10.19.3 Receiving an Encrypted Call
When receiving, the radio automatically switches between clear or private operation. If the transmission
being received is an encrypted transmission, it will be decrypted, the icon will be displayed, the receiver
will unsquelch, and the message will be heard in the speaker. For this to occur, the selected group or
channel must be programmed for private operation and the correct cryptographic key must be loaded into
the radio.
10.19.4 Transmitting an Encrypted Call
1. Select the desired group or channel.
2. Place the radio in Private Mode by pressing key, and then select PRIVATE. On a System radio,
the key can be used to toggle the Private Mode ON/OFF. When Private Mode is enabled, the
icon is displayed.
3. If the last state of the radio was Private Mode, the Private Mode will be enabled on power-up. Also,
the Private Mode will be enabled if forced operation has been programmed in the radio.
If a group or channel is not programmed for Private Mode operation, PVT DIS will be displayed if
an attempt is made to enable private transmit mode. It is not possible to operate on this group/channel
in Private Mode.
If the radio does not have the correct encryption key loaded, NO KEY# will be displayed and the call
will not be transmitted.
4. Continue with standard transmission procedures. A Private Mode access tone will be heard when the
PTT button is pressed.
10.20 SCAN OPERATION
Groups/channels that have been previously added to the scan list on a per system basis may be scanned.
Each system's scan list is retained in memory when the radio is powered OFF or when the battery pack is
removed.
10.20.1 Turning Scan On and Off
1. Toggle Scan operation ON by pressing (P7350 model) or (P7370 model). icon rotates
clockwise to indicate radio is scanning.
2. Toggle Scan operation OFF by again pressing (P7350 model) or (P7370 model). will
disappear.
• If the radio scans to a group/channel other than the one selected and then receives a call on the
selected group, the radio switches to the selected group/channel. However, if the “scanned-to”
group/channel is programmed at a higher priority the radio remains on the “scanned-to”
group/channel.
• The radio continues scanning if a new group/channel is selected when scan is ON.
3. Pressing the PTT button when scan is ON will cause the radio to transmit on the displayed
group/channel or to the currently selected group (depending on programming).