Appendix D
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D-1
UHF Radio Usage
NOTICE
Many countries require a license for radio
users (such as the United States). Be sure you
comply with all local laws while operating a
UHF radio.
Surveying in RTK mode has made UHF the most popular choice
for communications between Base and Rover receivers. The user
should know the strengths and weaknesses of this technology to
get the best use out of your HiPer+ receiver.
The quality and strength on the UHF signals translates into the
range of your UHF communications. The following concepts will
help you get the most out of your UHF based communication
systems:
1. Your system’s range will greatly depend on the local
conditions.
Topography, local communications and even meteorological
conditions play a major role in the possible range of your
RTK communications. A 35 Watt base radio will allow your
HiPer+ receiver to reach distances of up to 12 miles using the
standard antenna, depending on local conditions. Distances
in the order of 4 to 7 miles (6 to 11 km) can be easily
reached.
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