Radio Usage Information
P/N 7010-0781
A-3
If moisture does enter the carrying case, leave it open and allow it
to thoroughly dry before storing any components.
Radio Usage Information
All users must obtain an FCC (Federal Communications
Commission) license before operating the GPS+ system, GPS RTK
(Real-Time Kinematic), or simultaneous calculation of Global
Positioning System and Global Navigation Satellite System.
• The Federal Communications Commission is at:
http://www.fcc.gov/
• The rules are at:
http://www.access.gpo.gov/nara/cfr/waisidx_00/
47cfr90_00.html
There have been many problems in the past with RTK base radio
modems interfering with voice users. The issue finally culminated
with the FCC refusing to grant licenses until something was done to
ensure that surveyors did not interfere with voice users. The solution
was to stop using frequencies in the 469MHz range, to add an
identifier to the broadcast message, and other measures designed to
minimize interference with voice users. The user and his employer
are subject to fines of up to $82,500, confiscation of surveying
equipment and legal action, if the rules are ignored.
Topcon cannot obtain the license for the user. There are companies to
assist with licensing. Two are listed here:
• Professional Licensing Consultants Inc.
P.O. Box 1714
Rockville, MD 20849-1714
• Atlas License Company and Data Services
1725-A North Shadeland Avenue
Indianapolis, IN 46219
http://www.alcds.com/
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