Ssr antenna connector, Basics of rtk surveying – NavCom RT-3020 Rev.F User Manual

Page 52

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RT-3020 User Guide – Rev. F

SSR Antenna Connector

The connector used on the RT-3020 is a BNC female,
labeled SSR ANT or SSR on the front panel of the
sensor as shown in Figure 5.

‡

The RT-3020 SSR connector is
passive. It does not provide power.

The system is supplied with 3ft (0.91m) of RG58/U
cable (P/N 94-310065-3003). The cable is fitted with
a straight male BNC connector and a straight male
TNC connector respectively. A 3dB cable loss in the
cable length between the antenna and the RT-3020
drops power in half, e.g., 1 W to ½ W.

The RT-3020 complies with FCC
exposure limits. Individuals are
required to be a minimum of 20 cm
(8 in) away from the SSR transmitting
antenna when used in the basic
configuration. If the transmitting
system is modified from the basic
setup, check FCC regulations for
compliance with exposure limits.

Basics of RTK Surveying

RTK (Real-Time Kinematic) is a GPS system that
yields very accurate 3D position fixes immediately in
real-time.

A reference station (base station) transmits its GPS
position to roving receivers as the receiver generates
them. The roving receivers use the reference station
readings to differentially correct their own positions.
Accuracies of a few centimeters in all three
dimensions are possible. RTK requires dual

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