On 3/20/2021 8:05 PM, Phil Kane wrote:
Commercial communication site practice
Note that commercial communications is VHF/UHF, with vertical antennas
at the top of towers, often on mountaintops. Our antenna systems and
site locations are often rather different. Take these differences into
account when applying them to our stations, which may be VERY different.
Their antennas, for example, are all vertical sticks on a tower.
I had the experience of setting up a ham station at a decommissioned
AT&T Long Lines microwave site on a 3,000 ft peak with a 140 ft tower
(36 ft square at the base, 24 ft square at the top), and studied their
grounding. VERY different application, VERY different budget. They spent
$1Meg on the road to the site. Walls were 14-in thick, and removable to
allow the installation of equipment. Grounding was textbook for THEIR
system, which was all microwave dishes.
73, Jim K9YC
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