8c. Presentation

Public Safety DAS Upgrade

Item No. 8c_supp
Meeting Date: March 26, 2024
Public Safety Distributed Antenna System
(DAS) Upgrade
C801238 | N06489
Trevor Emtman
AV-PMG

                      Project Scope
BDA-Bi-Directional Amplifier





•   Provides in-building public safety and critical radio coverage to responders at SEA.
•   DAS is beyond useful life and needs upgrade to digital and modular design.

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                  Project Justification
•     Failure can result in loss of radio coverage impacting life-safety and emergency
communication.
•     Modern equipment can carry multiple frequency range such as 700/800MHz, VHF
spectrum, FirstNet Band 14, & LTE.
•     Compliance with NFPA-72 & 1225 and fire protection improvements.
•     RAC requires a redundant radio coverage system in case of single feeder failure.
•     Wireless coverage testing to determine deficiencies.


3

                    Schedule
2024         2025         2026         2027
Q1   Q2   Q3   Q4   Q1   Q2   Q3   Q4   Q1   Q2   Q3   Q4   Q1   Q2   Q3   Q4
PLANNING
CX Design
SD EXECUTED

DESIGN

CONSTRUCTION
CX Construction            Substantial
Completion
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                         Risks
= High      = Medium     = Low
Risk                     Impact  Probability                   Mitigation Plan

Lead Time to Delivery:                                              This is the current lead time to delivery expected
16 weeks - Fiber optic cables                                        as of Q2, 2023. It is expected to go down as the
12 weeks - Wireless equipment                                   project progresses towards construction.
CIBS communication rooms are not 2-hour                        DAS project is not expected to bring comm rooms
fire rated.                                                                  to 2-hr fire rating. Coordinate with AV F&I and
POSFD on this risk as the project progresses. AV
F&I and POSFD are working on a solution to make
all comm rooms to be 2-hr fire rated for
continuous fire rating.


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                  Cone of Certainty
W e are here







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                   Requesting
•  Commission authorization for $10,976,000 to complete design, construction, and
closeout phases of this project.
•  Approval to increase the project budget to a total estimated $11,226,000.




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             Requested Authorization
Authorization                         Project Phase                     Amount

Previous Authorizations                 Notebook + Survey                 $250,000

Current request for Authorization       Design + Construction + Closeout   $10,976,000

Total authorizations, including this       Notebook + Survey + Design +      $11,226,000
request                               Construction + Closeout

Remaining amount to be authorized    N/A                             $0


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    QUESTIONS?


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