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E980163 EARTH STATION TECHNICAL REPORT
Submitted by Ed Shiflett
A.
BACKGROUND
The C-Band Earth Station at White Springs
is a descendant of the Earth Station that was located at the Telford Hotel
in White Springs, FL, and decommissioned on 12-31-97. That original Earth
Station was built and licensed in 1991 for Peoples Network, Inc. (PNI) and
was protected from terrestrial interference from horizon to horizon. It
was coordinated and sited in White Springs, FL, due to the fact that there
were few interfering terrestrial microwave towers and cellular telephone
service had not yet come to the area.
An “all satellite” (ALSAT)
license was easier to obtain at that time. Locating such a facility now
... anywhere in the County .. especially with horizon to horizon
protection, would be extremely problematical because of the proliferation
of terrestrial cellular telephone and wireless transmission.
The PNI Earth Station was sold in 1996 to United
Broadcasting Network, Inc. (UBN); the radio network of the United Auto
Workers union known as The U.A.W.
This was part of a five million
dollar investment for part interest in the facility by the Union.
The U.A.W. subsequently began moving their radio network to the UAW headquarters in
Detroit, MI. PNI was able to obtain the information the UBN Earth Station
was about to be decommissioned because they held a mortgage with a UCC-1
registration on the original Earth Station.
PNI and its subsidiary American Community
Oriented Radio Network, Inc. (ACORN) immediately began making plans to
license an Earth Station within one mile of the original site. PNI and
ACORN sought to recreate an Earth Station with the same horizon to horizon
protection as the original had and before terrestrial microwave and
cellular towers could move into the void created by the decommissioning of
the original Earth Station.
The new C-Band Earth Station dish was set
into place in February 1998. (See Figure 1) It was the newest
technology
available and meets all current Federal Communications Standards as of
April 2003. It is licensed as E980163 and was essentially able to maintain
the legal “zone of protection map” (See Figure
2) the original had in 1991
before the explosion of terrestrial cellular telephone and wireless
technology towers congested the landscape physically and electronically.
It is not
easy to imagine finding an area the size of the protection zone required
that currently would meet the interference free criteria. Thus, making
replication or relocation from the present location a virtual
impossibility.
FCC Laws requires the Licensee of this class of Earth Station to be
notified, in writing, of ANY technical activity including testing,
installation or modification of transmitting equipment which might, to any
extent, interfere ANY WHERE within the protection area. See typical letter
and report (Figure 2A and 2B )
The
area of protection for the facility is defined by this Map on file with
the FCC (Zone of Protection)
It was in continuous operation from August of 1998 through August of 2000
and since then has been maintained legally and physically in a
professional manner.
B.
SITE SURVEY
At the time,
there may have been other remote locations in North America at which an ALSAT license
could be
obtained. However, there were few that met all the criteria required
to be viable. The primary being not being in proximity to other
transmitting facilities which might cause interference to it and visa
versa. In sighting this Earth Station, many factors were considered.
These included: reliable connection to the power grid, ability to expand
as needed or planned, connectivity to the telephone infrastructure,
weather and natural phenomena, proximity to major highways, cost of labor,
ability to transmit to the desired satellites, and security.
The result of the site
survey are as follows:
A reliable connection
to the local power utility, Suwannee Valley Electric Cooperative was
obtained. The service
provider infrastructure was deemed to be average and backup generating
capacity was installed to provide emergency power for more than 2 weeks
with no interruption in service for the Earth Station.
The physical location
of the Earth Station is 1.6 acres (MOL) which allows for the addition of
at least four Earth Stations of the size presently in use, a variety of
smaller Earth Stations and multiple C and Ku Band downlinks. In
addition a large 30 foot tower with a 10 foot square platform was
installed which allows for siting a smaller Ku Band Earth Station for
direct view of the horizon.
Connectivity to the
telephone and fiber optic circuits has proven to be superior. The local
telephone provider, Alltel, Inc, has proven over the last 12 years to be
outstanding in terms of service and ability to deliver the latest
technology to this area in a timely fashion. One of the strong points for
this site is the proximity to the fiber optic network. Many major
providers have large trunk lines within 1000 feet of the Earth Station
Site (See Figure 3). This amount of connectivity is rare in a semi-rural
location.
The Earth Station is
located in North Central Florida, approximately 90 miles from any
coastline and is outside of the 500-year flood plane. The site has never
has any appreciable snow and de-icing equipment has proven to be
unnecessary. Hurricanes have little or no impact on the area due to its
inland location.
The Earth Station site
is easily accessible by Interstate Highways. It is less than one mile from
Interstate 75, Exit 439 and approximately 5 miles from Interstate 10 exit
299. Airports in Gainesville (45 miles) and Jacksonville (70 miles)
service the area.
The labor pool White
Springs and surrounding areas is industrious and the cost of labor is much
lower than average. There have traditionally been many governmental
incentive programs to operate businesses in the area.
The security of the
Earth Station Site is far above average. It is located in a semi-rural
area on the outskirts of White Springs, FL, a town with a population of
840 people, with a very low crime rate. The site, even though it is near
to Interstate 75, is remote, and most local people within a mile of the
site do not know it is there. The site is fully fenced by a 6-foot
chain-link fence with 3 strands of razor wire at the top.
The Earth Stations is
located at approximately 81 degrees west longitude and can provide service
to all of North America and many other International Locations (see figure
4). Many satellites outside the authority of the United States government
are accessible only from fixed Earth Stations such as E980163.
C.
TECHNICAL NOTES
The Earth Station in
operation provided service to three radio networks, simultaneously. It
was operated as an analog Single Carrier Per Channel (SCPC) Earth Station
and is still configured as such. It is configured with redundant High
Power Amplifiers (HPA). These use traveling wave tubes, the most
expensive, but reliable units on the market.
The emergency and
backup power consists of five 1400VA line conditioning UPS units and a
Dayton 8 kW propane generator with automatic start and change over on loss
of power with more than 2 weeks of propane on site. The unit also
automatically returns to the grid upon restoration of service.
D.
SUMMARY
As Vice-President of Broadcasting
at ACORN and at PNI, I was directly involved in the planning and
construction of E980163. I studied many other Earth Stations, including
some of the largest in the country. Each one has its advantages and
limitations, as does E980163.
E980163’s licensure
allows it to do essentially all of the operations of the largest Earth
Stations in the US, on a somewhat smaller scale. Its connectivity and
secure location are advantages over many other Earth Stations.
Respectfully
submitted
Edward Shiflett
White Springs
Media
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