Product Manual

English
4
GNSS Antenna
Height with
Monopole
When used on top of the monopole accessory (see picture; the
monopole adapter is secured to the back of the SP20, see
also page 3), the SP20 can deliver accurate vertical
coordinates because the monopole gives the SP20 excellent
vertical stability.
When the monopole is used, the antenna height (H) you need
to specify in your application (MobileMapper Field or Survey
Mobile) is the length of the monopole (read the graduation on
the monopole; see picture below).
For all Android applications using SPace as interface, and
when the monopole is used, you should enable Use monopole
on the SPace Settings screen.
The application will automatically add to H the distance (d)
from the base of the monopole adapter to the phase center so
that the application uses the real height of the GNSS antenna
phase center above the ground.
Optional
Accessories
Below is the list of optional accessories (Spectra Precision
reserves the right to make changes to this list without prior
notice):
1. Monopole (also known as half-pole):
Length is adjustable; three presettable lengths: 1.00 m
(3.281 ft), 1.10 m (3.609 ft) and 1.20 m (3.937 ft).
2. Pole bracket:
3. External antenna cable (a coaxial cable):
d
H