Tait TP9500 - Making an Encrypted Call; Receiving an Encrypted Call; Removing Encryption Keys from the Radio

Making an Encrypted Call
1.Selectthedesirednetworktooperateon.
2.Checkthatencryptionison(encryptionkey isshowinginthedisplay).
3.PressandholdthePTTkeytotransmit.
Whiletransmitting,theLEDglowsredand appearsinthedisplay.
Ifuserstransmitorreceiveanunencryptedcallonanencryptednetwork, disappearsandtheradio
maybeprogrammedtoissueanaudiblealert.
Receiving an Encrypted Call
Whenreceivingencryptedcall,theradiounmutesandclearspeechcanbeheard,solongasthekeyrequiredto
decodethecallisstoredintheradio.
Ifthekeyrequiredtodecodethecallisnotstoredintheradio,thentheradioremainsmutedandthemessageKey fail
appears.
Ifuserstransmitorreceiveanunencryptedcallonanencryptednetwork,theencryptionkeyicondis-
appearsandtheradiomaybeprogrammedtoissueanaudiblealert.
Removing Encryption Keys from the Radio
Itmaybepossibleforuserstodeleteencryptionkeysfromtheirradio.
When emergency mode is activated, or when the radio is immobilized (‘inhibited’),
encryption keys may be automatically deleted from the radio.
Iftheencryptionkeysaredeleted,themessageKey failappearsandawarningtonewillperiodically
sound.ThemessageCannot transmitwillbedisplayediftheusertriestotransmit.
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Tait International Ltd December 2019