Towers and Antenna Mounting Systems

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Towers and Antenna Mounting Systems

• International Sales Meeting 2005

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Structural Tower Quoting Staff

• Tower and General Foundations
• Shelby Hoffman
• Theresa Davies
• C. Matt Lankford
• Foundations Soil Reports Caissons
• Theresa Davies
• Tower and Accessories Quote Department
• Nick Riley
• Vinu Julius
• Please copy Nick, Vinu, and Shelby on initial
  quote requests.

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• Mag Rod at Guy Anchor
• Excellent ground rod
• Provides stable, low impedance interface with
  true earth
• Does not require external voltage source, testing
  mechanism, continuous monitoring, or adjustments
• Will Prolong life of anchor rod

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• K-Rod at Tower Base
• Constantly conditions surrounding soil with
  electrolyte enhancer
• When combined with moisture, solution reduces the
  resistance between electrode and earth
• Provides years of maintenance free, stable
  impedance

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• Standard EIA Grounding System
• Includes (3) ground rods at the base and (1) at
  each anchor point
• Ground Rod is 8 x 5/8 diameter copper clad rods

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• A-3 Spur
• Very efficient hybrid lightning dissipater
• Reduces potential of lightning strike by
  transferring electrical charge to ionizing air
  molecules
• Adaptable to beacon plate offering protection to
  beacon and lower antennas
• To order an A-3 you need (3) LRK0004

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• EIA Standard Lightning Rod
• Minimum requirement of the TIA/EIA-222-F Standard

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• All stock tower sections use horizontals as the
  climbing ladder
• X-Brace towers (face size 30 to 54) shown to
  the upper left use horizontals and secondaries to
  form the ladder
• Z-Brace towers (face size 18 to 24) shown to
  the bottom left, have horizontal members that act
  as the climbing ladder

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• Used on (3) Legs of a Bolt-Together sections of a
  Self Supporting Tower
• Used on (1) Leg of Weld-Together sections of a
  Self Supporting Tower
• Used on Monopoles and Pole Mounts with a 3 or
  greater offset

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• Internal Ladders
• Internal Ladders are reserved for Bolt-Together
  Guyed Towers.
• If an internal climbing ladder is specified for a
  Weld Together Guyed Tower, the request will be
  ignored.

• External Ladders
• External Ladders are very rare and a request for
  one will be questioned by Engineering
• An external ladder will require additional
  engineering and drafting time, therefore it is
  not cost effective

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• Cable Safety Climb Device
• The cable safety climb is our most frequently
  used safety device. It is also a feature on our
  pole mounts.
• The Rigid Rail safety climb is best used with
  Lambdas and AM Towers. There are several
  differnet types of rigid rail Stainless steel,
  Galvanized Steel, and Aluminum

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• Standard Tabs
• Will hold (5) lines total for X-Brace Towers (30
  to 54 face)
• Will hold (3) lines total for Z-Brace Towers (18
  to 24 face)
• If tower requires plate connections, the standard
  tabs will not work

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• Waveguide/Feedtab
• Full face or half face feedtabs (or waveguides)
  are available
• When All Lines is specified, the tower engineer
  will determine the most cost effective way of
  placing the lines as to minimize the amount of
  hardware that is necessary
• It is helpful to know what lines are future in
  order to cost out the necessary hardware for
  those lines as optional instead of included

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• Dish Mount with Tie Back
• This is an example of a dish mount with a tie
  back. Dish size is what determines the pipe
  size. A tie back is most usually needed when the
  dish is leg mounted.

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• Face Mount Dish Mount
• This is an example of a face mounted dish mount.
  Dish size is what determines the pipe size.

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Boom and Frame Mounts

• When making mount requests, please describe as
  detailed as possible what the customer wants.
• The use of drop down boxes is not required, a
  very descriptive statement is all that is needed.
• The following examples from the PiRod/Valmont
  catalog may be requested
• (Please note the pricing is not included because
  the cost listed in the catalog is not our cost.
  Some of the more frequent request are attached to
  the handout. Additional sizes are listed under
  the name at the top of the page)

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• Ice Shields
• When choosing an ice shield, the first number
  should match the diameter of the dish. For
  example, if a 6 dish with an ice shield is
  required, the 6 x 4 ice shield would work.
• The ice shield to the left is for dishes/grids 2
  to 6 in diameter placed off the leg of the
  tower.

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• Ice Shields
• The ice shield to the left is for dishes/grids
  larger than 6 in diameter and placed off the leg
  of the tower.

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• Face Mount Ice Shield
• The ice shield to the left is for dishes and
  grids placed off the face of the tower.

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• ERI Candelabra for 10 or 12 Bolt-Togethers
• ERIs definition of candelabra is what is shown
  in the above picture. A 10 or 12 BT Guyed
  Tower is required for the candelabra.
• If a Weld Together is being quoted and the
  customer is asking for a candelabra, they are
  probably talking about a smaller antenna mount.
  Please refer to the Boom and Frame Mount section
  of this booklet for more information on mount
  possibilities.

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• This is a typical layout for a top mounted TV
  antenna. A large plate is mounted to the top of
  the tower. The plate is 2 thick on average.
  This plate bolts into the tower and has the bolt
  pattern of the TV antenna drilled into it.

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• This is an example of our side mount TV Antenna
  mount.

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• ALPac TV Antenna Mounting Structure
• This is an example of our prototype ALPac.
• The ALPac is a TV mounting structure that is
  designed to reduce interference from the tower on
  the antenna

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• FM Pole Mount
• Off Tower Face

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FM Pole Mount Off Tower Leg
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• Lambda Mounting System
• This figure shows our lambda mounting system with
  a pole mounted FM Antenna. The bay spacing on
  the lambda matches the bay spacing of the antenna
  to minimize the interface between the FM and the
  tower steel. A pole mount is not necessary for
  mounting. The FM can also be mounted off of a
  leg.

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Structural Tower Quoting Staff

• Tower and General Foundations
• Shelby Hoffman
• Theresa Davies
• C. Matt Lankford
• Foundations Soil Reports Caissons
• Theresa Davies
• Tower and Accessories Quote Department
• Nick Riley
• Vinu Julius
• Please copy Nick, Vinu, and Shelby on initial
  quote requests.