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Difference between revisions of "South Sound 911"

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m (→‎System Architecture: grammar correction)
(→‎System Architecture: updated VHF networks with FCC call signs to aid in locating towers and licensed frequencies)
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A P-25 Phase 2 700 MHz Motorola network with 21 sites, 38 channels and 74 talk paths.
 
A P-25 Phase 2 700 MHz Motorola network with 21 sites, 38 channels and 74 talk paths.
  
A VHF network (aka 410 VHF) that specifically covers the WA-410 corridor from Enumclaw to Crystal Mountain using a 3 site, 4 channel network.
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A VHF network (aka 410 VHF-FCC Call Sign WQVI727) that specifically covers the WA-410 corridor from Enumclaw to Crystal Mountain using a 3 site, 4 channel network.
  
 
An UHF data network supporting Pierce Transit Operations through their TRAX system with coverage in Thurston, Pierce, King and Snohomish Counties.
 
An UHF data network supporting Pierce Transit Operations through their TRAX system with coverage in Thurston, Pierce, King and Snohomish Counties.
  
A VHF Overlay network designed to improve station alerting and paging for 16 Fire Departments, Mutual Aid interoperability for 21 Police Departments, and Search & Rescue/Emergency Management response and recovery communications.
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A VHF Overlay network (FCC Call Sign WQWR930) designed to improve station alerting and paging for 16 Fire Departments, Mutual Aid interoperability for 21 Police Departments, and Search & Rescue/Emergency Management response and recovery communications.
  
 
A Next Generation Integrated Lahar Warning System providing monitoring and detection of impending lahars, initiation of the Lahar Warning System Alert and Warning, and remote delivery of volcano information to researchers.
 
A Next Generation Integrated Lahar Warning System providing monitoring and detection of impending lahars, initiation of the Lahar Warning System Alert and Warning, and remote delivery of volcano information to researchers.

Revision as of 18:13, 8 October 2017

System Name South Sound 911
System Type Project 25 Phase II
System ID 1E7
Connect Tone N/A
Wide Area Communications Network BEE00
Network Access Code varies by site
TRBO Color Code ?
NXDN RAN
Band 700
County Pierce,King
State Washington
Ownership Public

South Sound 911 RR DB Entry
South Sound 911 Site Map from the RRDB
Washington Discussion Forum

MediaWiki
QuickRef
PDF Card


Welcome to the South Sound 911 collaboration article, a Trunked Radio System located in Washington.
This is where you, the user, may index any articles you develop for scanning related topics for this Trunked Radio System.


  • Some talkgroups on this system may be using P25 Phase II TDMA modulation, which can only be monitored using a P25 Phase II capable scanner or receiver.
  • Click HERE for a list of scanners capable of monitoring those talkgroups.


NAC Information by Site

Site Site ID Site NAC (hex) Site NAC (dec)
Tacoma Simulcast 1 0x1E1 481
Orting Simulcast 2 0x1E2 482
South Simulcast 3 0x1E3 483
West Seattle 4 0x1E4 484
Buckley 5 0x1E5 485


System Architecture

South Sound 911 or the Single Countywide Communications System Network is comprised of the following elements:

A 21 site microwave network.

A P-25 Phase 2 700 MHz Motorola network with 21 sites, 38 channels and 74 talk paths.

A VHF network (aka 410 VHF-FCC Call Sign WQVI727) that specifically covers the WA-410 corridor from Enumclaw to Crystal Mountain using a 3 site, 4 channel network.

An UHF data network supporting Pierce Transit Operations through their TRAX system with coverage in Thurston, Pierce, King and Snohomish Counties.

A VHF Overlay network (FCC Call Sign WQWR930) designed to improve station alerting and paging for 16 Fire Departments, Mutual Aid interoperability for 21 Police Departments, and Search & Rescue/Emergency Management response and recovery communications.

A Next Generation Integrated Lahar Warning System providing monitoring and detection of impending lahars, initiation of the Lahar Warning System Alert and Warning, and remote delivery of volcano information to researchers.

A final element slated for implementation in 2018 is a Distributed Antennae System (DAS) in the Pierce County Jail improving in-building voice and data coverage. DAS-like coverage will also be located in other county offices as the need arises.

Related Pages

Listening to South Sound 911 with a RTL-SDR