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Introduction
FCC Compliance
FCC Compliance
The GPSMAP 188/188C/238 Sounder complies with Part 15 of the FCC interference limits for Class
B digital devices FOR HOME OR OFFICE USE. These limits are designed to provide more reason-
able protection against harmful interference in a residential installation, and are more stringent than
“outdoor” requirements.
Operation of this device is subject to the following conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received, including interference that may
cause undesired operation.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or and experienced radio/TV technician for help.
The GPS 188C Sounder does not contain any user-serviceable parts. Repairs should only be made by
an authorized Garmin service center. Unauthorized repairs or modifi cations could result in permanent
damage to the equipment, and void your warranty and your authority to operated this device under
Part 15 regulations.
188188C238 Manual Intro.indd ii 6/30/2003, 3:26:26 PM