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Updates:
7/6/08: Business / Fashion Centre at Pentagon City
7/2/08: Special Events / Memorial Day Ceremony at Arlington National Cemetery (2008)
6/28/08: Special Events / Columbia Pike Blues Festival (2008)
5/31/08: Airport / Ronald Reagan Washington National (DCA), Business / Charles E. Smith (Crystal City)
1/28/08: Business / Pentagon Row

Arlington County

Trunked System

Motorola Type II

856-860.4375, 856-860.7625, 856-860.9375

Police

See trunked system above.

Sheriff

See trunked system above.

Fire

See trunked system above.

154.1300 [127.3] Dispatch (Channel 1A/1P) Simulcast

Local Government

See trunked system above.

Schools

155.8950 [136.5] Buses

154.5700 [179.9] Tuckahoe Elementary

Many schools use 154.5700, with various CTCSS tones.

Hospitals

Virginia Hospital Center
461.9625 [218.1] Engineering
464.7625 [241.8] Security

Colleges

Marymount University
464.5750 [ d703]

Airport

Ronald Reagan Washington National (DCA)

Federal

Arlington National Cemetery
165.1875 [156.7] (input 163.4250)

Business

AMC Courthouse Theater
UHF portables used--possible frequency of 467.7625 [  67.0].

Arlington Overlook
451.7500 [ d132]

Ballston Common Mall
461.8875 [203.5] Security
464.9250 [203.5] Administration/Maintenance

464.8250 [100.0] Regal Cinemas
467.9250 [ d743] Victoria's Secret

Best Western Hotel (Rosslyn)
Employees use UHF portables.

Bishop Denis J. O'Connell High School
462.6375 [         ] Superdance 2004
467.8750 [         ]

Blue Top Cab
490.7375 [ d411]

Carlyle Restaurant (Shirlington)
467.9250 [  88.5]

Charles E. Smith (Crystal City)
451.7750 [ d205] Security
451.8750 [ d743]

Courtyard by Marriott Arlington Crystal City/Reagan National Airport Hotel
UHF portables.

Crowne Plaza National Airport Hotel
451.9250 [ d311]

Crystal Gateway Marriott Hotel
464.6750 [ d506] Security

Doubletree Hotel Crystal City
151.8050 [ d114]

Embassy Suites Hotel (1300 Jefferson Davis Hwy.)
461.3000 [ d411]

Fashion Centre at Pentagon City
464.4375 [ d074] Security
464.4625 [ d413] Housekeeping

151.8350 [  74.4] Banana Republic
154.5400 [  74.4] Gap
461.1125 [ d412] Sephora
461.3125 [186.2] Apple
462.6625 [ CSQ] Macy's
463.8375 [146.2] Nordstrom Loss Prevention
464.1000 [203.5] Macy's Loss Prevention
464.5000 [  67.0] Sony Style
464.5500 [  79.7] American Eagle (tone may have changed to [  67.0])
464.5625 [  94.8] Ann Taylor
466.1625 [ d743] Victoria's Secret
467.8750 [ d506] Starbucks
467.8750 [ d723] Guess
467.8750 [110.9] Limited
467.9000 [118.8] Express
469.4875 [ d546] Abercrombie & Fitch

Hilton Arlington Hotel (Ballston)
467.8500 [  79.7]

Hilton Crystal City Hotel
463.7500 [  71.9]
464.9500 [  71.9] Banquets

Hilton Garden Inn Arlington Courthouse Plaza Hotel
467.9250 [  67.0]

Holiday Inn National Airport Hotel
Hotel shuttle uses UHF radios.

Holiday Inn Rosslyn at Key Bridge Hotel
469.3750 [192.8]

Hyatt Hotel (Rosslyn)
464.3250 [167.9]

Hyatt Regency Crystal City Hotel
461.4000 [110.9] Security
462.0750 [ d174] Engineering
463.4500 [ d174] Banquet Services

Lincoln Properties (4601 N. Fairfax Dr.)
464.3750 [  77.0]

Market Common at Clarendon
151.7600 [  67.0] Pottery Barn
466.0375 [  94.8] Ann Taylor Loft
467.8500 [  74.4] Crate & Barrel

Marriott Key Bridge Hotel
Employees appear to use Nextel.

Office Depot (1515 N. Courthouse Rd.)
UHF portables.

Pentagon Center
464.9250 [ d612] Security

154.5700 [  67.0] Costco
467.8750 [ d432] Borders
467.9250 [ d506] Best Buy

Pentagon Row
461.9000 [ d331] Apartment Maintenance

464.5500 [  67.0] DSW
467.8500 [  67.0] Bed Bath & Beyond

Radisson Reagan National Airport Hotel
Hotel shuttle uses Nextel.

Residence Inn Arlington Rosslyn Hotel
462.6750 [ d346]

Ritz-Carlton Pentagon City Hotel
461.3500 [ d226] Bellmen
463.2750 [107.2] Meeting Services
464.4750 [ d226] Engineering/Housekeeping

Signature Theater
461.1125 [  67.0]

Special Events

Cavalia (2005)
462.2125 [ d306]
462.2875 [ d516]
462.3875 [ d624]

Columbia Pike Blues Festival (2008)

Arlington Police used talkgroup 11 (1K - Special Operations Section - Motors).

Marine Corps Marathon (2007)

Arlington Fire/EMS used talkgroups 28, 29, and 30 from Arlington's P25 digital trunked system.  Talkgroup 82 was used by trash collectors.  Arlington Police used numerous talkgroups on Arlington's analog trunked system.  33936 seemed to be used as an "overall command" channel.  Other talkgroups used: 33712, 33808, 33840, 33872, 34032, 34064, 34128, and 34160.  Specific usages of these talkgroups could not be determined.  They may have been used for traffic control/other functions in different areas.

DC used talkgroups 2096 and 2112 for medical calls, and 16656 and 18288 for traffic control.  Talkgroup 2608 was identified as C15 ("Charlie 15") and had a "DC liaison" calling an "Arlington liaison."  Talkgroup 2640 was also used, probably for a similar purpose.

Park Police used 166.7250 [127.3].  Capitol Police used 170.1750 [156.7].  Security in the Crystal City area used 451.7750 [ d205].

Marines used a P25 380 MHz digital trunked system, although the vast majority of their transmissions were encrypted.  See this page for details: http://www.radioreference.com/modules.php?name=RR&sid=3856.

Marine Corps Marathon (2005)

381.2000 course updates (P-25 digital)
381.3375 "Zone 1"; medical calls (P-25 digital)
381.6875 "8K started"; medical calls (P-25 digital)
381.8375 course updates; "Zone 1" (P-25 digital)

The frequencies above were used by officials (primarily Marines) coordinating race operations.  These frequencies are probably part of a 9600 baud digital trunked system, although no control channel was found.  The inputs for these frequencies were 10 MHz higher.  380.8250, 381.2375, and 381.2875 had P-25 digital encrypted traffic; unknown if these frequencies were used by the Marathon.

Arlington trunked system talkgroups:
33264 SWAT
33808 "Zone 3 Command"
33840 "COC"
33936 "Motor Command"
34032 "Post 20"
34064 Course Updates
34128 "Post 6"
34160 "K9"; "Checkpoint A"
34576 Medical Teams
34608 Medical Teams
34672 Fire/EMS Special Events
35536 Unknown

MPD/DCFD trunked system talkgroups:
2096 DCFD Special Events 1
2112 DCFD Special Events 2
2128 DCFD Special Events 3
16656 MPD Special Operations Division
34576 Department of Transportation

Marine Corps Marathon (2004)
Arlington County handled most of the public safety for the event, even some of the medical calls in the District of Columbia.  Numerous police talkgroups were active on Arlington's trunked system (see above).  On 33264, "SWAT Command" was heard.  On 33840, "Zone 2 Command", "Zone 6 Command", and "Ops Command" were heard.  On 33904, "Intel Command" was heard.  On 33936, "Intel Command" was also heard, as well as motor units.  On 34032, "Zone 1 Command" was heard.  On 34128, there were references to "EOD" and "posts".  On 34160, "Zone 6 Command", "Traffic Command", "Post 4", and "Post 13" were heard.

Arlington County Fire used three talkgroups.  On 34576, "Medical Command" and "Bike Team 2" were heard.  On 34608, "Aid Station" and "Medical Command" were heard.  34672 may have been the primary channel for the street festival in Crystal City that accompanied the Marathon.

Officials coordinating actual race operations appeared to be using UHF Project 25 digital radios (unknown if trunked).  Because the officials appeared to be federal/military (probably Marines), a search was done between 380-420 MHz.  The frequency was not found, unfortunately.  One federal frequency that was active and may have been related to the event was 407.3000.  This frequency had Project 25 digital communications on it.

Selected talkgroups from Washington's trunked system were active.  2096, 16656, and 35536 had limited communications.  Metro Transit Police used talkgroups 50096 and 50256 on their trunked system.

Memorial Day Ceremony at Arlington National Cemetery (2008)

Fort Myer Trunked System Talkgroups:
408 "Enforcer Base" (law enforcement/security operations)
415 Unknown
482 Ceremonial Operations
485 Buses

World Music Festival (September 1, 2007)
Arlington Police used talkgroup 33840.

Unknown

452.4750 [ d165] "US Airways cargo"; monitored from Reagan National Airport
462.5000 [ d532] "A building"; monitored from Reagan National Airport
464.2500 [ d431] strong; mobiles heard; monitored in Ballston
464.6250 [ d412] Hotel (R)
467.7750 [  97.4] "at Residence"; "Metro side or back side?"; may be used by Courtyard Crystal City shuttle
469.5750 [ d413] "gate 10A"; monitored from Reagan National Airport

Contents © 2008 by David Schoenberger