24
Midian Encryption
Midian Encryption Programming and Service Manual
June 2006 © Tait Electronics Limited
2.6
Testing the Midian Encryption Module
With encryption off:
■
Check normal power-up of the radio, with the normal display messages
and confirmation tones.
■
Check that receive and transmit audio are functioning, using a service
instrument or another radio on the same channel.
With encryption on:
■
Check that receive and transmit audio are functioning, using another
TM8000 or TOP radio with the same encryption module, programmed
with the same codes, on the same channel.
■
Confirm encryption is active (where a hopping code module is fitted) by
listening for the initial sync burst on the receiving radio
■
Confirm encryption is active (where an inversion code module is fitted)
by pressing any function key - the confidence tone will be a higher
frequency than normal.
■
Check the Encryption User Interface features – status indicators,
encryption settings etc. (See the TOP Encryption User’s Guide
information provided
on page 24
, or TM8000 User Information
on
page 53
.)
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