ENCRYPTION
CES-128 VOICE ENCRYPTION
346 ENVOY™ TRANSCEIVER REFERENCE MANUAL
Standby mode
CES-128 voice encryption provides a standby mode in which the transceiver receives
signals in clear, and automatically switches to secure mode if it detects a secure
transmission. When the encryptor is in standby mode, any transmissions that you
make will be in secure mode, by default. If you want transmissions to be in clear mode
while the encryptor is in standby mode, you can set this in Settings > Security >
CES Options.
A brief standby period may be set following a call made in an HF network using a
Selcall call system. This period enables you to hear the revertives that are sent from
the called station. The encryptor goes to secure mode after the standby period. The
standby period is set in Settings > Security > Standby After Selcall.
The encryptor allows secure operation to remain on during scanning. Secure standby
mode is permitted and remains on until is pressed again.
Related links:
Using secure standby on page 348
Enabling access to secure standby on page 346
Enabling clear transmissions during secure standby on page 347
Setting the duration of secure standby for a Selcall HF network on page 349
Standby After Selcall on page 255
CES Options on page 256
Enabling access to secure standby
Secure standby mode is available for CES-128 voice encryption only.
To enable access to secure standby mode:
1 From the main menu, select (Settings), then (Security).
1 Press or to scroll to the CES Options entry.
1 Press .
1 Press or to scroll to the Secure standby value, then press OK to select
the check box.
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