The Height Above Average Terrain for the Repeater
Antenna at the Leesburg Hospital Repeater Site is surveyed and calculated
to be 187.5 feets. Path profiles were created using 3-D TopoQuads by DeLorme
for eight directions from the repeater site then elevations were determined
with the profile routine at points located 2, 4, 6, 8, and 10 miles from
the repeater. These 40 points are averaged and compared the the repeater
tower base elevation of 361 feet above mean sea level and the height above
ground of the antenna on the tower. For worst case situation, the antenna
is assumed to be mounted at the top to the 225 foot tower.
A word or two about the
accuracy of this data is appropriate. In general, the individual numbers
are well within 5 feet of the map data, the path bearings are within 0.2
degree of the intended bearing. We trust these
numbers will satisfy this application.
As can be seen from the 3-D views, the terrain
to the west of the site will make communications to the west challenging.
Link trials to western sites equipped with handheld transceivers are encouraged.
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