iGage iG9 User Manual
83
‘Slant Height’ to ‘Vertical Height’:
Slant Heights are measured from the Ground Mark (GM) to the bottom of the blue band that
separates the white cap and the gray bottom of the receiver.
Vertical Heights are measured from the Ground Mark (GM) to the bottom of the receiver’s 5/8” 11
TPI nut, the ARP (Antenna Reference Point.)
Manually Converting Heights
Receiver Radius
r (meters)
SHMP
h (meters)
iG9
0.07505
0.0742
𝑣 = √s
2
− r
2
− h
v
: vertical height
s
: slant height
r
: receiver diameter at measurement point
h
: Slant Height Measurement Point (SHMP)
offset from receiver bottom
Examples
Measured
Slant s
(feet)
Slant s
(m)
iG9
Vertical
v (m)
6.965
2.123
2.0474
5.148
1.569
1.4931
