Resolute User Manual Version 2.5
31
RTK Radio Network Design
The Resolute RTK units contain an embedded radio peripheral for sending and receiving RTK
corrections. The radio peripheral included with RTK and NorthStar units operate on a channel
basis, with 8 possible channels (0-7). For a simple single-Base-single-Rover network, all the radios
should operate on the same channel to receive the corrections. The default channel from the
factory for this is channel 3. The Base broadcasts corrections to the Rover, and the Rover receives
the corrections. For this configuration, the use of Yagi antennas is recommended.
An example of a Single-Base-Single-Rover network.
A step up from this network is the Single-Base-Multiple-Rover network. For this to work, the Base
needs to be equipped with an Omni antenna to allow strong radio signal in all directions. This is
the only change required as the base broadcasts. All Rovers should be configured on the same
channel as the Base.
An example of a Single-Base-Multiple-Rover configuration.
If the Base radio does not have line of sight to all Rovers required for your application, additional
NorthStar Repeater(s) can be added into the Network. The NorthStar Repeater is equipped with
two radios which are identified as Radio A and Radio B.
Radio A receives the corrections broadcasted from the Base, in this configuration it operates as
a Rover and should be configured to the same channel as the Base, in this case the default
channel 3. Radio B rebroadcasts the corrections like a Base. Because this radio is a second
broadcasting radio on the same network it must be on a different channel to the Base it is
receiving corrections from. The factory default for Radio B is channel 5. Any Rovers that require
the NorthStar for line of sight to receive corrections should be on the same channel as the
NorthStar Radio B.
