Field System Setup
Measuring
Antenna
Height
53
P/N:
1001608
‐
01
Measuring Antenna Height
The
receiver
calculates
the
coordinates
of
the
antenna’s
phase
center.
To
determine
the
coordinates
of
the
station
marker,
specify
the
following:
•
Measured
height
of
the
antenna
above
the
station
marker
•
Method
of
measuring
the
antenna
height
•
Model
of
the
antenna/receiver
used
Any
necessary
antenna
phase
center
adjustments,
based
on
the
antenna
model,
is
automatically
applied.
This
adjustment,
when
combined
with
accurately
measured
height
and
measurement
methods,
allows
for
correctly
computed
reference
marker
coordinates.
To
accurately
measure
the
antenna
height:
1.
Measure
the
antenna
height
above
the
control
point
or
marker,
either
the
slant
height
or
the
vertical
height.
You
may
either
measure
the
vertical
height
to
the
Antenna
Reference
Point
(ARP)
located
at
the
bottom
of
the
receiver
at
the
base
of
the
mounting
threads,
or
measure
the
slant
height
to
the
Slant
Height
Measurement
Mark
(SHMM)
on
the
side
of
the
receiver,
as
shown
on
the
right.
2.
Record
the
antenna
height,
points
name,
and
start
time
in
the
field
notes.
LV
LS
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