User's Manual

34 FCC Rules and Regulations
Being Part of the RF community
Operation of a licensed radio product makes you a member of
the RF community. Be aware that virtually all frequencies
licensed are provided on a shared basis with other users. Each
frequency used in RTK GPS activities has certain restrictions
and limitations. For complete information, refer to Part 90, Title
47, of the Code of Federal Regulations.
Most frequencies sharing data transmissions and voice
transmissions give priority to voice users. Be mindful of the
persistent nature of a GPS RTK data transmission and always
limit your RF transmission output power when performing close-
in survey situations to avoid interference with co-channel users.
We recommend using the low RF power setting for construction
site and other line-of-site surveys with baselines less than 2
miles (depending on terrain).
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Warning: If you are in conflict with a co-channel user,
select another frequency to avoid formal FCC actions.
In most cases you are required to vacate a frequency
upon complaint by a shared channel voice user.
Most survey operations are itinerant in that the system is moved
on a frequent basis. For fixed system installations, you should
not use frequencies set aside for itinerant operations, but should
coordinate a frequency based on the fixed area operation.
Regulations differ from country to country, so please be aware of
the local regulations prior to using the PDL equipment.