Freedom R8100 SERIES, Руководство оператора

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Figure 2.2.7.3.1.2-3 . This provides a quick end–to-end test of the P25 radio transmitter and receiver.
Also, while complete P25 encryption radio support will be an upcoming R8100 feature, Voice Loopback
can presently be used to quickly verify basic functionality of an encrypted P25 radio. Note: The R8100
captures and resends the Network Access Code (NAC) sent by the radio. For the radio to reproduce the
voice loopback the receive NAC must be the same as the transmit NAC. Also, radios configured for
private calls requiring a selective squelch ID equal to that of the radio may not loop back.
Voice channel recordings can be played back at any time by pressing the Play Last Recording soft key
(this selection only appears after a recording has been made). Note: Recorded information is lost if the
R8100 is power cycled, or if the Generate mode is selected and a new test pattern is enabled by setting the
modulation mode to Continuous or Burst.
If the Generate Modulation Type is changed during voice loop playback, the new type will not take
effect until the next playback. i.e. it won't change mid-playback but the last recording will be generated
back with the new type the next time it is played back.
Figure 2.2.7.3.1.2-2 P25 Voice Recording