Geodetic Iv; Figure 2.2 Geodetic Iv Antenna Without And With Groundplane - ashtech Z-Xtreme System Manual

tion conditions will dictate which antenna is appropriate.

Geodetic IV

The Geodetic IV antenna, Figure 2.2, is the standard antenna offered.

Figure 2.2 Geodetic IV Antenna without and with Groundplane

The Geodetic IV is small, lightweight, and meets the needs of most users. It is avail-
able with an optional groundplane attachment, which is effective in reducing noise
created by satellite signals reflecting off of nearby obstructions. The technical name
for this noise is multipath. Using the groundplane attachment will reduce the effects of
multipath on the data collected. In order to be effective at reducing the effects of mul-
tipath, the groundplane attachment significantly increases the size and weight of the
antenna. For this reason, the groundplane attachment is not recommended for use
on a kinematic rover. If points for static data collection or placement of a kinematic
base are located in areas where obstructions, such as metal buildings, may cause
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