NavCom RT-3020 Rev.F - Manual (Page 45)

RT-3020 User Guide – Rev. F
proximity to each other can create multipath and
oscillations between the antennas. These add to
position error or the inability to process the
satellite signals.
9 Most antenna’s have better gain when the satellite
is high in elevation. Expect tracking performance
to fade as the satellite lowers in elevation. It is not
unusual to see 10dB difference in antenna gain
(which translates into signal strength) throughout
the entire elevation tracking path.
9 Map obstructions above the horizon using a
compass and inclinometer. Use satellite prediction
software with a recent satellite almanac to assess
the impact on satellite visibility at that location
(available on NavCom’s web site).
GPS Sensor
Mount the RT-3020 GPS sensor to a flat surface.
Shock isolators suitable for 1.8kg (4lbs) may be
necessary for environments with high vibration, i.e.
Earth moving equipment or aircraft installation.
The RT-3020S can be installed in a backpack for
mobile surveying applications.
Do not place the sensor be in a confined space or
where it may be exposed to excessive heat, moisture,
or humidity.
There are no user serviceable parts
inside the RT-3020 GPS sensor.
Removing the screws that secure the
front end and rear end plates will void
the equipment warranty.
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