Radio Usage Information
5-2
P/N: 7010-1006
Safety W
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ings
10. To prevent vandalism or theft, do not leave removable Topcon components on the machine at
night. Remove the components each evening and store appropriately in the carrying case.
11. Keep the carrying case dry at all times.
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/
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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 469 MHz 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/
All mounting bracket welds must be secure and strong to prevent sensor
equipment from vibrating excessively or from becoming detached at the weld
during operation.
DO NOT allow moisture to get inside the case. Moisture trapped in the case can
adversely affect the components. If moisture does enter the carrying case, leave it
open and allow it to thoroughly dry before storing any components.
Summary of Contents for 3D-MC
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