TM 1-1680-359-10
Section IV. OPERATION UNDER UNUSUAL CONDITIONS
2-8. DESERT REGIONS. Before using the equipment, remove all sand and dust.
2-9. TROPICAL REGIONS. In climates of high humidity, inspect the equipment daily for fungus, mold, insects, and
metallic corrosion.
2-10. ARCTIC REGIONS.
a.
Before using the equipment, remove all snow and ice.
b.
Equipment operated at low temperatures should be kept in low temperature storage when not in use. Store
the equipment in a shipping carton and cover the carton with water-repellant material (SB 38-100).
c.
When operational conditions using Battery BA-1568/UR include temperatures below 50F, the radio set and
spare battery should be carried inside flight clothing to prevent cold soaking. The battery will not supply
sufficient power to operate the radio if cold soaked for extended periods of time at or below freezing
temperatures with a battery that has been prewarmed. Batteries should be warmed as soon as possible after
exposure to ensure reliable
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