MAINTENANCE
4-2
Doc No. 84382 Rev 2
THALES COMMUNICATIONS, INC. PROPRIETARY INFORMATION
OPERATIONAL CHECKOUT
The Liberty
TM
radio provides three types of BIT:
•
POST
– Power On Self Test (POST) function that checks the basic radio functions every
time the radio is powered up.
•
CBIT
– Continuous Built In Test (CBIT); this series of radio self tests are run in the
background during normal operation
•
IBIT
– Initiated Built In Test (IBIT); this series of radio self tests are run when requested
by the user (
FUTURE)
RADIO PREVENTIVE MAINTENANCE
Inspection and Cleaning
The radio should be occasionally inspected for external damage, such as bent connectors, and wear items,
such as loose attaching hardware (screws and setscrews). The radio should be cleaned periodically,
particularly after exposure to salt water, sand, or mud. The user should wipe exposed contacts, such as
the side connector, battery connector, and audio connector with fresh water and then dry with low
pressure air, if available. Small pieces of dirt and debris may infiltrate the grill of the internal speaker and
should be cleaned out with a soft brush or blown out with low pressure air (if available) to remove any
particles
EXTERNAL BATTERY PREVENTIVE MAINTENANCE
Lithium-ion batteries will self-discharge over time. If not periodically recharged, the voltage level can
get so low that the maximum potential capacity is reduced or the battery may not accept a recharge. In
order to prevent the effect of excessive self-discharge, it is recommended that lithium-ion batteries that
are not in regular use (e.g., in storage) be regularly recharged to full capacity. However, the Liberty
TM
Battery has an 18 month shelf life. In ideal situations, it is recommended that the battery be stored at room
temperature and low humidity.