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VP9000 in Issaquah, Washington
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VP9000 goes to
Washington, hiding in the most obvious of places: the
Washington Monument. Disguised in "National Park Service
brown," it is difficult to see, unless you walk right up
to it. From its obvious yet obscure
location, without disturbing its surroundings,
VP9000 transmits information about all the monuments and
historic places on the Mall.
See the National Mall's
news release. |
Fort Bend County, Texas, installed 10
synchronized ALERT AM stations with VP9000 antenna systems.
See
a case study.
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An "isolated-style" VP9000 system
installation at Castle Country Energy Loop on the Huntington
Eccles Byway in Utah. |
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Optional for the Information Stations, the ALERT AM Emergency Advisory
Radio and ITS6000 Highway
Advisory Radio Systems
(linked below) |
 When space is at a premium and you want an attractive
way to install your AM antenna, the Vertical Profile Antenna System
(VP9000) offers the solution. Place the VP9000 System in the yard
area adjacent to a building or outdoor cabinet where the ALERT AM
radio equipment is located. The Vertical Profile Antenna System is
designed to withstand hurricane wind speeds encountered on the Gulf
and Atlantic coasts.
The Vertical Profile Antenna System is comprised of an attractive
aluminum antenna support pole and antenna grounding system, all in
one. The antenna lightning arrestor and all cable are inside the
pole, accessible through a service hatch. There is nothing on the
surface of the support pole to encourage vandalism.
Advantages: Minimal ground disturbance (less than one square foot,
horizontal; six-foot depth, vertical). No additional antenna
groundplane or rod are required; therefore, it is an easy antenna
system to move.
This antenna system is recommended for high visibility areas and
features low vandalism potential and low installation cost. The
support pole with the 1400-1700 kHz antenna meets and exceeds
Florida's hurricane-force wind specifications (see "Specifications"
below).
Installation Requirements: Placement of the Vertical Profile Antenna
is typically within 50 feet of a building (but may be at a greater
distance, if the design requires) in grass, dirt or paved areas.
Vehicles may be parked next to the system; however, the support pole
should be guarded from vehicle damage. No objects taller than 25
feet should be within 50 feet. Coaxial cable to the support pole may
be buried or installed overhead. The pole is set in a 6-foot post
hole with good earth contact in the lowest 4 feet of the hole. (When
used on AM frequencies below 1000 kHz, a 20-foot solid ground rod is
driven beside the pole.) Concrete, asphalt or tamped dirt may
surround the pole within 2 feet of the surface.
The Vertical Profile Antenna System is engineered to and compliant
with ANSI/TIA-222-G-2005 (Class III, Category 4, Exposure D)
standard. This means it is rated to perform in worst-case
environments, such as, unobstructed shorelines in hurricane-prone
areas and atop ridges in terrain where wind speeds can achieve great
force. Additionally, it is rated for essential communications in
critical areas where failure of a structure could damage buildings
or present a hazard to life. To achieve these designations, the
VP9000 has to be able to sustain 130 mph/3-second gust winds without
failure. The Vertical Profile Antenna System is compliant with
ANSI/TIA -222-G-2005 standard for frequencies 1400-1700 kHz when
installed in soil types per Annex F of the standard.
In a separate study, when used with AM frequencies 1400-1700 kHz,
VP9000 is rated to meet increased coastal hurricane wind-speed
requirements (150 mph in a 3-second gust) for South Florida and
other coastal areas.
In 2006, ISS was awarded a patent for the
all-in-one, integrated VP9000 antenna design (US Patent
7,027,008).
Price: Offering savings in space, pole and installation
costs, VP9000 is priced at $2,195, including
freight.
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ADVANTAGES OVER
CONVENTIONAL BURIED-RADIAL GROUNDPLANES WITH WOOD POLE-MOUNTED
ANTENNAS:
- Simple
one-piece design.
- Requires little disruption to sites (only 1 square foot).
- Buried copper element is less likely to be stolen.
- More attractive than standard wood-pole antenna supports.
- Hurricane wind rated (130 MPH, 3-second gusts) for all
frequencies. Meets most stringent Florida coastal standards (150
MPH, 3-second gusts) with 1400-1700 kHz frequencies. Support
pole with antenna is ANSI/TIA-22-G-2005 compliant (Class III,
Category 4, Exposure D) for 130 MPH/3-second gust for 1400-1700
kHz.
- Pole does not burn in wildfires.
- Patented design cannot be duplicated/sold by competitors.
- Moderate overall cost (hardware plus installation labor) as
buried-radial groundplane antenna.
- More simple to move if ever required than other grounding
methods.
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Specifications:
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Space
requirement: less than 1 square foot.
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RF grounding
element: 4-foot length; integral to
support pole.
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Lightning
ground: 8-foot groundrod, copper clad.
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Support pole
composition: aluminum, 6-inch OD,
.3125-inch wall thickness.
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Support pole
length: 24 feet.
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Support pole
finish: powder coat, silver/gray.
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Support standing
height: 18 feet above grade; 6 feet
below grade.
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Wind: hurricane
rated. 1400-1700 kHz, support pole
exceeds Florida Dade/Broward County wind
load requirements with attached antenna,
greater than 146 MPH/3-second gusts.
530-1390 kHz, support pole meets and
exceeds Florida wind load requirements
with attached antenna, 130 MPH/3-second
gusts. (Florida Building Code – 2001
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Internal
components: RF lightning arrestor,
grounding bus, coaxial feedline.
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External
components: threaded attachment for
antenna mount, weatherproof service
hatch with tamperproof hardware. Crane
hook.
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Frequencies:
530-1700 kHz.
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Compliant with
ANSI/TIA-222-G-2005 standard (Class III,
Category 4, Exposure D) 130 mph/3-second
gust for frequencies 1400-1700 kHz when
installed in soil types per Annex F of
the standard.
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Related
Links
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| This page
was last updated on
May 06, 2008. |
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