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BARRETT PRC-4090 TACTICAL HF SDR TRANSCEIVER - SELCALL
5. Listen for the secure call revertive tone from
the called station which indicates the call
was successful.
Note: The secure call revertive tone has a different
sound to the revertive tones of the other call types.
If the revertive tone was not heard or was dif-
cult to hear, try another channel and repeat the
process.
Now the transceivers can communicate securely
using a voice call. Other users on the frequency
will only hear garbled speech.
To exit secure mode, a Hangup call will need to
be sent, or the
key pressed (disconnects
local station only).
Sending a Secure Call
1. Select the channel to send the Secure call on
(Beacon Call can be used to determine the
best channel)
2. Listen for trafc on that channel. If trafc is
not heard, continue.
3. Press
4. Either:
• Select Secure, enter the selcall ID of
transceiver you wish to contact and
press Enter, or
• Choose a contact from the Contacts
icon
and then select Secure.
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