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Difference between revisions of "South Sound 911"

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== Site NACs ==
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{{Infobox_TRS_MultiCounty
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|SysName=South Sound 911
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|Flavor=[[Project 25]] Phase II
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|SysID=1E7
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|CTone=N/A
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|NAC=varies by site
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|Band=700
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|County=[[Pierce County (WA)|Pierce]],[[King County (WA)|King]]
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|State=Washington
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|fstate=washington
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|OwnerTy=Public
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|sid=5480}}
  
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{{Tracker Phase2}}
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==NAC Information by Site==
 
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== Listening with RTL-SDR and OP25 ==
 
 
Install OP25 as per the instructions: http://op25.osmocom.org/trac/wiki.png/wiki/InstallInstructionsPage
 
 
Create a <code>trunk.tsv</code> file based on the sites you can receive, their control channels, and the site NAC. Here is an example:
 
 
"Sysname"      "Control Channel List"                    "Offset" "NAC"  "Modulation"    "TGID Tags File"        "Whitelist"    "Blacklist"    "Center Frequency"
 
"Tacoma"      "774.68125,774.43125,773.93125"          "-720"  "0x1e1" "C4FM"
 
"Orting"      "770.35625,770.60625,773.98125,774.48125" "-720"  "0x1e2" "C4FM"
 
"South"        "773.231250,773.731250"                  "-720"  "0x1e3" "C4FM"
 
"West Seattle" "774.706250,774.206250"                  "-720"  "0x1e4" "C4FM"
 
"Buckley"      "773.481250,772.931250"                  "-720"  "0x1e5" "C4FM"
 
 
TSV stands for tab-separated values. Each field in the tsv file must be separated by a single tab character. This wiki does not preserve tab characters, so you must fix it after copy and pasting.
 
 
You will need to determine the offset needed for your RTL dongle by using the fine tune slider in OP25 to line up the signal on the Datascope tab.
 
 
Here is an example command to start OP25 with the above file. You may need to change some of the arguments for your system:
 
 
./op25/op25/gr-op25_repeater/apps/scope.py --args rtl=0 -N LNA:42 -f 774081250 -S 2400000 -v 5 -2 -T trunk.tsv
 
 
 
  
  
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==Related Pages==
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[[Listening to South Sound 911 with a RTL-SDR]]
  
  
 
[[Category:Washington Trunked Radio Systems]]
 
[[Category:Washington Trunked Radio Systems]]

Revision as of 08:40, 22 February 2017

System Name South Sound 911
System Type Project 25 Phase II
System ID 1E7
Connect Tone N/A
Wide Area Communications Network ?
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


Related Pages

Listening to South Sound 911 with a RTL-SDR