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ADL Vantage/ADL Vantage Pro/ADL Vantage 35
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 dedicated specifically to RTK surveying activities has certain restrictions and
limitations. For complete information, refer to the appropriate documentation from the
licensing agency in your country of operation, e.g., 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. Pacific Crest recommends using the low RF power
setting for construction site and other line-of-site surveys with baselines less than two
miles (depending on terrain).
WARNING:
If you are in conflict with a co-channel user, select another frequency to avoid formal actions
by government agencies. 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, please be aware of the local regulations before
using radio equipment.
Automatic station identification
For operation in the United States, the FCC requires that radio transmitters broadcast a
station identifier every 15 minutes. The station identifier is the call sign assigned to you on
the station license.
The radios support the broadcast of station identification in a manner that meets the
requirements of the FCC. Upon receipt of equipment, use the ADLCONF software to
program your FCC call sign into the configuration of the radio. This is only required for
transmitters.
The call sign is transmitted every 15 minutes in Morse code. It is not included in any data
packet and so is not processed by the receiving radio. However, data transmission is
interrupted for a few seconds while the call sign is being transmitted. If you leave the Call
sign field blank (on the ADLCONF’s Identification screen), the radio programmed with this
configuration file will not transmit any call sign.
