Spectra Precision SP90m, Руководство пользователя

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UHF Networking
This feature allows a rover to receive corrections from up to
three different bases broadcasting separately their
corrections via radio, on the same frequency channel, but at
different times so the rover can receive these corrections
properly.
UHF networking can be implemented in SP90m provided you
use Survey Pro as the field software.
UHF networking may be used in two different modes:
• Manual: The rover operator chooses which of the bases to
work with. The bases will all be within range so the
operator can change the base used at all times (see
diagram below).
Typically, the manual mode is used when redundancy is
required in terms of corrections availability within a
working area. On the diagram below, the darker area
represents the area where the rover can operate from any
of the two bases.
• Automatic: The rover will automatically switch to the base
within range that provides the best quality of corrections.
Typically the automatic mode is used when you need to
extend the UHF radio coverage.
Implementing UHF networking on rover side consists of:
1. Activating this mode.
2. Choosing between automatic or manual selection of the
base used. In Survey Pro, this setting is accessible from
the
GNSS Status
function after you have started a survey.
Selecting the manual mode means specifying the ID of the
base you would like to work with.
Base 1 Base 2
Base 1 Base 2
Base 3