TRANSFORMING THE WAY THE WORLD WORKS
Trimble Maxwell
TM
7 Technology - Interference
Detection with Onboard RF Spectrum Analysis
TECHNICAL PUBLICATION
INTRODUCTION
GNSS users and developers face the challenge of
unwanted signals interfering with the low-power signals
transmitted from satellites. This can disrupt productivity
or slow development of new products.
With the introduction of Maxwell™ 7 Technology, Trimble
has added the ability to monitor and analyze the signals
received in each of the GNSS frequency bands using the
receivers graphical user interface. This technical bulletin
provides an overview of how this onboard Spectrum
Analyzer feature helps users identify interference on the
bench or post-mission and take steps to remove.
INTERFERENCE SOURCES
There are a variety of potential sources of interference:
►
Integration issues
►
Faulty equipment
►
Legal transmissions in GNSS bands
►
Malicious interference
SPECTRUM ANALYZER FEATURES
The Spectrum analyzer feature embedded in the web
user interface of Trimble's precision receivers replicates
many of the traditional features found in benchtop
analyzers. However, unlike the traditional analyzer, we
can now view the spectrum as seen by the receiver. The
envisioned user of this feature is an engineer integrating
