E F Johnson Company 2425372 Benutzerhandbuch
Draft
-6 5300 ES Series Mobile Radio Operating Manual
December 2006
11.3 Clear/Secure Strapping
11.3.1 Transmit Mode Options
The following transmit options are available when encryption is selected:
Clear - All calls are in the clear mode unless responding to a secure call. If the response
is then made within the delay time (see Section 4.11.3), it occurs in the secure mode.
is then made within the delay time (see Section 4.11.3), it occurs in the secure mode.
Secure - All calls are made in the selected secure mode.
Switched - The mode is selected by the C/S (Clear/Secure) option switch. When the
clear mode is selected by this switch, “CLEAR” is flashed, and when the secure mode is
selected, “SECURE” is flashed.
clear mode is selected by this switch, “CLEAR” is flashed, and when the secure mode is
selected, “SECURE” is flashed.
If the channel has been strapped “Clear” and the option switch selects the “Secure” mode
on power up and a transmission is attempted, “Clear Only” is displayed and transmitting is
disabled. Likewise, if the channel is strapped “Secure” and the option switch selects the
“Clear” mode on power up and a transmission is attempted, “Secure Only” is displayed
and the transmitter is disabled.
on power up and a transmission is attempted, “Clear Only” is displayed and transmitting is
disabled. Likewise, if the channel is strapped “Secure” and the option switch selects the
“Clear” mode on power up and a transmission is attempted, “Secure Only” is displayed
and the transmitter is disabled.
The radio can be programmed to ignore the “Clear” or “Secure” switch setting (“Ignore
Clear/Secure Switch When Strapped” selected on Global screen). These preceding
indications then do not occur and transmissions always occur in the strapped mode.
Clear/Secure Switch When Strapped” selected on Global screen). These preceding
indications then do not occur and transmissions always occur in the strapped mode.
Note
If all channels/talk groups are strapped clear or secure and no C/S (Clear/Secure) option
switch is programmed, this parameter must always be selected (see following).
switch is programmed, this parameter must always be selected (see following).
If the C/S (Clear/Secure) switch is not programmed, the radio is always in the last known
state (usually Clear) and there is no way to change it. For example, if the last known state
is Clear and this parameter is not selected, it is never possible to transmit a Secure message
on a channel strapped Secure because all that happens is transmitting is disabled, an error
tone sounds, and “Sec Only” is displayed.
state (usually Clear) and there is no way to change it. For example, if the last known state
is Clear and this parameter is not selected, it is never possible to transmit a Secure message
on a channel strapped Secure because all that happens is transmitting is disabled, an error
tone sounds, and “Sec Only” is displayed.
11.3.2 Receive Mode Options
The following receive options can be programmed with conventional operation. With
SMARTNET/SmartZone and P25 Trunked operation, encrypted calls are received if the
proper key is programmed.
SMARTNET/SmartZone and P25 Trunked operation, encrypted calls are received if the
proper key is programmed.
No Autodetect - Only signals coded like the transmit signals are received.
Secure Autodetect - Both clear and secure signals are automatically detected. This
mode is automatically selected if the transmit mode is switch selectable.
mode is automatically selected if the transmit mode is switch selectable.