Icom IC-F3031S / F4031S Instruction Manual - Page 4

PRECAUTIONS (Continued) BE CAREFUL! The IC-F3031S, IC-F3033S, IC-F3036S, IC-F4031S, IC-F4033S and IC-F4036S meet IP67* requirements for dust-tight and waterproof protection. However, once the transceiver has been dropped, dust-tight and waterproof protection cannot be guaranteed because of possible damage to the transceiver's case or the waterproof seal. * Only when the jack cover or the optional HM-168LWP is attached. Even when the transceiver power is OFF, a slight current still flows in the circuits. Remove the battery pack or batteries from the transc­ eiver when not using it for a long time. Otherwise, the installed battery pack or batteries will become exhausted, and will need to be recharged or replaced. MAKE SURE to turn the transceiver power OFF before connecti­ng the supplied/optional equipment. For U.S.A. only: CAUTION: Changes or modifications to this transceiver, not expressly approved by Icom Inc., could void your authority to operate this transceiver under FCC regulations. FCC INFORMATION • FOR CLASS A UNINTENTIONAL RADIATORS: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. iii