Tait TM8000 Series Applications Manual page 112

Testing
112 Connecting Third-Party Products
The radio will stay in Secure mode until the Clear/Secure function key is
pressed again.
The coding or setup of the encryption module can only be changed via the
over-the-air rekeying protocol (OTAR) provided by the module
manufacturer. For further information refer to the manufacturer's
documentation.
Radio performance degradation is to be expected when encryption is active.
The main effects are reduced radio range and audio quality.
With encryption off:
1. Check that the radio powers up normally, with the normal display
messages and confirmation tones.
2. Check that receive and transmit audio are functioning, using a service
instrument or another radio on the same channel.
With encryption on:
1. Check that the radio receives and transmits, using another TM8000
radio with the same encryption module, programmed with the same
codes, on the same channel.
2. Listen for the synchronisation pulses that occur approximately once a
second, added by encryption, to confirm encryption is active.
TM8000 3DK Hardware Developer's Kit Application Manual
September 2003 © Tait Electronics Ltd