User's Guide

3. Daily Operation
Inspect the radio for broken, loose, or missing parts and fasteners, taking corrective action as
required.
Ensure that the IMR-XA external whip is securely connected to its mounting base, and the
mounting base is securely attached to the vehicle.
Make sure the radio is operated and stored within the recommended temperature range.
Operating temperature: -5° F to 140° F (-15° C to 50° C)
Storage temperature: -40° F to 158° F (-40° C to 70° C)
Cold temperature extremes may result in reduced available energy from the battery
pack. This energy is recoverable as the battery pack warms to 68° F (20° C).
Do not subject the radio to extreme temperatures, such as leaving it in a vehicle in bright
sunlight. Extended exposure to warm temperature extremes can result in permanent
reduction in available energy from the battery pack.
Exit all external applications at the end of each work day and power the radio off. This
ensures that all applications communicating with the radio have terminated their com-
munication links and the IMR battery is not being discharged.
Charge the portable IMR battery nightly.
Charging the Portable IMR Battery
1. Plug the USB cable into the radio.
2. Plug the USB cable into a PC or an AC wall adaptor.
3. Allow the radio to charge for at least six hours before you use it or store it.
Charging the Mobile IMR-XA or IMR-FT Battery
1. Plug the vehicle DC power cable into the charge base.
2. Plug the DC power cable into the vehicle accessory adapter.
3. Allow the radio to charge for at least six hours before you use it or store it.
14 May 2019 TDC-1719-002 5