Chapter I: A brief introduction of S9 III
4
Chapter I :
A brief introduction of S9III
The manufacture of this device is Stonex Europe Srl.
STONEX
®
devoted itself to offer to
surveyors the most advanced GPS tools. GPS RTK surveying technology plays an important role
in surveying tasks and its use is getting more and more widespread. As a leading GPS RTK
instrument producer, STONEX
®
guarantees that the S9III, our latest RTK GPS receiver,
is suited
for nowadays demands of precision, reliability and user friendliness.
S9III is able to receive both of GPS signal frequencies, but also satellite signals from GLONASS
and GALILEO, so we must correctly speak of “GNSS” receiver.
S9III mainframe integrates a GNSS antenna, GNSS module, UHF transmitting and receiving
radio, radio antenna, GSM/GPRS modem, Bluetooth device and battery. So S9III is totally
integrated: it means that the surveyor only needs the handheld to start its job.
The exquisite outlook and the amazing color bring you a fashioned surveying station. This
device has a higher stability, lesser power consumption, smaller volume and lighter weight than
the previous STONEX
®
receivers. S9III has a special design which makes it waterproof,
dustproof and vibration-proof. The batteries and built-in radio are set in the bottom of
mainframe, giving more effective dustproof and waterproof qualities
and makes the S9III a
better performer in field of surveying. The Wireless receiver unit (weighs)
1.2 kg: the rover is
light and easy to carry. The low power consumption of receiver allows users to carry out and
work in long time with only one single battery.
Integrated design and anti-jamming property are combined perfectly: the former avoids the
problem of a cumbersome external antenna, and the mainframe design can resolve the
jamming problem effectively.
The performance of data-transfer radio technology is state-of-the-art: the bit error rate (
BER
) is
10
-7
and the radio collision problem is reduced.
UHF antenna is studied in order to make its electromagnetic center connected with the
electromagnetic center of dual-frequency antenna: in this way it reduces at the same time the
