Public Safety Distributed Antenna System
(DAS) Upgrade
C801238 | N06489
Trevor Emtman
AV-PMG
Item No. 8c_supp
Meeting Date: March 26, 2024
Project Scope
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• 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.
BDA-Bi-Directional Amplifier
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.
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Schedule
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2024 2025 2026 2027
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
PLANNING
SD EXECUTED
DESIGN
CONSTRUCTION
CX Design
CX Construction
Substantial
Completion
Risks
5
Risk Impact Probability Mitigation Plan
Lead Time to Delivery:
16 weeks - Fiber optic cables
12 weeks - Wireless equipment
This is the current lead time to delivery expected
as of Q2, 2023. It is expected to go down as the
project progresses towards construction.
CIBS communication rooms are not 2-hour
fire rated.
DAS project is not expected to bring comm rooms
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.
= Low= Medium
= High
Cone of Certainty
6
We are here
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
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Authorization Project Phase Amount
Previous Authorizations Notebook + Survey $250,000
Current request for Authorization Design + Construction + Closeout $10,976,000
Total authorizations, including this
request
Notebook + Survey + Design +
Construction + Closeout
$11,226,000
Remaining amount to be authorized N/A $0
QUESTIONS?
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