B08_Attachment_01_Statement_of_Work_GLAC_PR_1432-13-401_Radio_Tower_SOW.pdf

GENERAL DESCRIPTION:

The Olympic National Park has a requirement for the purchase and installation of one communications shelter.

The communication site is in Washington at the following locations:

• Staircase: LAT 47°30′52″N, LON 123°19′49″W, site elevation 820’ Site shelter will be self-contained structures no larger than 6’x6’ walk-in shelter but can be of a smaller size such as a small 2-bay cabinet. The structures will not have a supporting foundation.

Built-in Faraday grounding is required and in accordance with EIA standards.

SHELTER, FENCING and Tower REQUIREMENTS:

General:

Structures: The maximum footprint of the structure with integrated tower will be no more than 15’x15’. The shelter must be able to protect sensitive digital radio equipment and batteries from external threats such as snow, ice, wind, lightning, radio frequency interference and electro-magnetic radiation. At minimum, the structure will include one standard 19” equipment rack capable of hold 3 Codan repeater subracks, (each approximately 6” in height), and one standard rack for the battery system.

Tower: The communications tower at the site would be remediated or repaired, and improved to comply with Motorola R56, and typical ANSI/TIA tower safety, construction, loading, lightning protection and conditional assessment stand. Trenching from the communications tower next to the Staircase housing building to the proposed shelter location to extend the antenna system. - Trenching from the Staircase housing building or transformer located near the building to the proposed shelter location to tie into shore AC power.

Installing 3 Telewave ANT150F2 omni antenna using LMR 600 running from the shelter through 4” conduit in trenches to the highest available locations on tower. Antennas and cables and hardware to be supplied by contractor. A tower mapping and loading analysis will be completed based on the final tower configuration and condition after the remediation and antenna installations are completed.

Fencing: Fence must be grounded in accordance to R56, must be at least 6 feet from the foundation of a building, shelter or tower, and have the appropriate signage. Also needs to meet the standards laid out in OCIO Directive 2009-008. The fence shall be:

• Heavy gauge chain link.

• 6 feet tall

• Steel posts placed eight feet on center.

• Constructed per manufacturer’s recommendation.

• Brown in color

• The contractor may propose suitable alternatives, if known.

Site Specifics: The site is unique in its location and use. Below are the specific power, antenna, and offset requirements Solar system, battery system, and antenna offsets will be provided by the contractor with the solar system and battery system being installed by the contractor:

• Staircase:

o 48VDC AGM battery system with supported solar system. Battery system must be able to provide a minimum of 72 hours at 105w load continuous.

o Solar system must be large enough to support the 48VDC battery system and have the appropriate charge controller and breaker for the system.

Materials:

Structure must be constructed of aluminum alloy plating for electrical conduction (RFI and lightning shielding) and high strength.

Concrete foundation will not be authorized as the complete structure/tower package must be mobile.

The shelter should be new, unused, and shall meet the latest design and fabrications standards.

Structure will be painted to blend in with the surround terrain. Paint color will be discuss after contract award.

Installation:

Structure installation will be complete by the contractor.

Coordination of transportation of all materials is the responsibility of the contractor.

Structure shall be constructed in a fashion for ease of installation, and if necessary easy for redeployment.

Cable management into the structure will be through a 4 or more-port cable entry gland.

Commercial power is not available at any of the sites, therefore solar power will be required with a battery system sufficient to support site power requirements. Design of the power system will be in a fashion to allow easy of maintenance and replacement of the batteries.

Solar system and battery system will be provided and installed by the contractor.

Grounding:

Structure and tower shall be properly grounded, at a minimum, in accordance with all industry standards. To further protection sensitive communications equipment, a Faraday grounding system will be used in the structure.

LABELING AND IDENTIFICATION:

A permanent metal marker plate shall be affixed to the shelter, inscribed with the following information:

• Site name

• Installation date

• Manufacturer and contact information

• Model number

• Serial number

• Latitude and Longitude in degrees/minutes/seconds (NAD 83)

• Base elevation in feet AMSL

FAA and FCC identification numbers, if applicable, shall be clearly labeled near the base of the tower.

Upon completion of the work, documentation detailing final inspection and testing shall be submitted, addressing the following:

• Vertical alignment and plumb; all bolts tight and torqued to specification; no damaged or missing structural members.

• All surface scratches and damage to the structure or tower repaired.

• No signs of stress or vibration.

• Grounding: Verify lugs and cadwelds, if used; Ground resistance test and record.

• Photographs: Overall structure- from N, E, S, W