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Updates:
5/18/08: Business / Boulevard at Capital Centre
5/17/08: Special Events / Joint Services Open House 2008
4/27/08: Business / Gaylord Resort & Convention Center at National Harbor, Business / National Harbor

Prince George's County

Police

494.6875 [127.3] Hyattsville--Sectors A and B (Channel 1)
494.5375 [127.3] Bowie/Beltsville--Sectors D and E (Channel 2)
495.1375 [127.3] Kent--Sector G (Channel 3)
495.0875 [127.3] Oxon Hill--Sectors J and K (Channel 4)
494.5625 [127.3] Clinton--Sector F (Channel 5)
494.8875 [127.3] Special Operations (Channel 6)
494.9375 [127.3] South Tactical/Alternate (Channel 7)
494.7375 [127.3] North Tactical/Alternate (Channel 8)
494.3125 [210.7] Kent--Sector H (Channel 9)
495.2125 [192.8] Beltsville--Sector C (Channel 10)

North System

EDACS

866.1000 (1), 866.6000 (2), 867.0875 (3), 868.4625 (4), 868.9625 (5)

South System

EDACS

866.1875 (1), 866.7875 (2), 868.2375 (3), 868.4875 (4), 868.7625 (5)

Sheriff

155.5800 [210.7] (Channel 1)

Fire

495.0125 [127.3] Dispatch (Channel 1)
494.8375 [127.3] North EMS (Channel 2)
494.7875 [127.3] South Fireground/Administration (Channel 3)
495.0625 [127.3] North Fireground/Administration (Channel 4)
494.7875 [127.3] South Fireground/Administration Simplex (Channel 5)
495.0625 [127.3] North Fireground/Administration Simplex (Channel 6)
494.6625 [127.3] South EMS (Channel 7)
494.8875 [127.3] Command/Police Patch; Wilson Bridge Incident/Alternate South Fireground (Channel 8)
494.9125 [210.7] Mutual Aid--Laurel; Primary Fireground--Companies 10, 31, 41, 49 (Channel 9)
495.4125 [210.7] Mutual Aid--Adelphi; Primary Fireground--Companies 1, 11, 12, 34, 44, 55 (Channel 10)
490.5875 [210.7] Tactical (Channel 11)
490.7125 [210.7] Tactical (Channel 12)
  46.1200 [ CSQ] Dispatch Simulcast

Local Government

155.9400 [100.0] Shared Local Government (used by The Bus)
158.9400 [100.0] Animal Control
159.1800 [100.0] Public Works

Schools

153.7850 [192.8] Maintenance
155.2200 [192.8] Buses

Town of Bladensburg

453.9000 [141.3] Police

City of Greenbelt

453.8000 [146.2] Police
453.8750 [146.2] Police

City of Hyattsville

155.1300 [100.0] Police

City of Laurel

453.4375 [146.2] Police Primary
453.1500 [146.2] Police Tac
453.3750 [146.2] Public Works

Hospitals

Doctors Community Hospital
462.0000 [ d606] Maintenance
463.3250 [ d606] Security

Southern Maryland Hospital Center
464.3750 [ d546] Security

Colleges

Prince George's Community College
464.9750 [  71.9] Maintenance

University of Maryland College Park

Motorola Type II

866.4125, 867.6625*, 868.4125, 868.5375, 868.9875

155.0250 [118.8] Facilities (R)
155.1900 [173.8] Maryland State Police (Byrd Stadium) (S)
451.8000 [ d612] Active during 9/13/07 football game--TV
453.5750 [173.8] Unknown (R)
461.3875 [ d152] CSC Event Services (Byrd Stadium) (S)
464.4750 [ d546] Stamp Student Union (R)
464.5625 [ d023] Active during 9/13/07 football game--student video crew?
464.6750 [ d031] Stamp Student Union (R)
464.7750 [ d047] Active during 9/13/07 football game--general talk about game
464.8750 [192.8] Concessions (Byrd Stadium) (R)
464.9750 [192.8] Concessions (Byrd Stadium) (R)
466.9250 [118.8] Active during 9/13/07 football game--general talk about game

Federal

NASA Goddard Space Flight Center

See this page: http://www.radioreference.com/apps/db/?sid=2514

Business

Boulevard at Capital Centre
461.9750 [ CSQ] Security (Metropolitan Protective Service) (S)

461.0625 [  67.0] Magic Theaters
467.7625 [  67.0] DSW
467.8750 [  67.0] Borders Books
467.9000 [ d131] Office Depot

Bowie Town Center
152.9225 [ d074] Security

466.0375 [  94.8] Ann Taylor Loft
467.8500 [ d047] Old Navy
467.8500 [  67.0] American Eagle?
467.8750 [  71.9] Bed Bath & Beyond
467.9000 [ d743] Best Buy
467.9250 [ d743] Victoria's Secret

FedEx Field (Washington Redskins)
451.4625 [ d023] Food
451.8000 [ d612] TV?
461.0750 [ d627] Engineering
461.1000 [ d546] Unknown
461.1125 [  85.4] Suites?
461.1500 [ d731] Parking
461.3875 [ d152] Contemporary Services Corporation (CSC) (private security/crowd management)
461.4875 [ d311] Philadelphia Eagles quarterback helmet radio (voice inversion)
461.5125 [ d152] Contemporary Services Corporation (CSC) (private security/crowd management)
461.7625 [ d723] Parking
461.9500 [ d526] Guest Services?/Usher Supervisors?
462.8125 [ d205] Parking
462.8125 [ d712] "suite"; "kitchen"
462.9125 [ d346] Electricians
462.9125 [ d664] "Trailer 1"
462.9125 [ d734] Merchandise
463.3125 [ d172] Redskins quarterback helmet radio (voice inversion)
463.4625 [ d023] Food
463.5000 [ d662] Media/Press Relations
463.5125 [ d023] "suite"
463.5375 [ d606] Food/Concessions?
463.5625 [ d026] Baltimore Ravens quarterback helmet radio (voice inversion)
463.6875 [ d134] Minnesota Vikings quarterback helmet radio (voice inversion)
463.8000 [ d664] Ticketing/Gates
463.9250 [ d654] Audio/Visual
464.1000 [ d114] Ushers/Housekeeping/VIP Parking
464.1000 [ d703] Trash pickup
464.5000 [ d125] "equipment to trailer"
464.5000 [  94.8] TV?
464.5000 [114.8] TV?
464.5500 [ d664] "stadium sections"; "clambake"
464.6000 [203.5] Comcast SportsNet?
464.7750 [ d244] Concessions/Food
464.8000 [ d624] Gates?/Ushers?; turnstile counts
464.8500 [ d632] Security
464.9500 [ d631] Suites/Club Level Security?
466.0375 [ d243] Unknown TV/Satellite Provider
466.1125 [ d351] Food
467.7875 [ d051] Housekeeping
469.1125 [ d023] Food
469.5000 [ d612] "need to get anthem singers"
469.5125 [ d624] Food
469.5500 [ d612] "referee wants to be wired"; "repair jumper"
494.7375 [127.3] Prince George's Police (inside stadium)
494.8875 [127.3] Prince George's Police (outside stadium)
500.1000 [127.3] Prince George's Fire/EMS

Monitored during November 6, 2005 game against the Philadelphia Eagles:
450.3875 [ CSQ] Broadcast Radio--Washington
450.5625 [123.0] Fox 45 (TV)--Baltimore
455.2500 [ CSQ] Broadcast Radio--Philadelphia

Gaylord Resort & Convention Center at National Harbor

LTR

463.2875 (2), 463.5625 (6), 463.6875 (10), 464.6625 (14), 464.7875 (18)
 

0-10-001	Security
0-10-005	Engineering
0-10-010	Banquets
0-10-012	Electric Shop?
0-10-015	Banquets
0-10-020	Housekeeping
0-10-021	Housekeeping?
0-10-030	Information Technology
0-10-035	Audio/Visual?
0-10-040	Marketing?/VIP Services?
0-10-055	Loading Dock/Logistics

Greenbelt Marriott Hotel
464.2750 [  94.8] Housekeeping?
464.9250 [ d047] Engineering; "luggage assistance"
Hotel uses unusual repeater pairs.  469.9125 [ d047] is input for 464.9250 [ d047].  464.2750 [  94.8] is licensed output frequency, but 464.2625 was captured on frequency counter.  Input may be 469.2625.  Voice not very clear on both 464.2750 and 464.2625.

Home Depot (150 Hampton Park Blvd.)
467.7625 [ d065]
467.8500 [         ] (Channel 2)

The Inn & Conference Center, University of Maryland University College
461.7500 [ d311] Housekeeping
464.2250 [ d311] Security/Conference Services

Mall at Prince George's
464.3750 [ d032] Security
469.5750 [ d032] Housekeeping (Channel 2)

461.0375 [  74.4] Foot Locker
464.5000 [ d612] Hecht's Loss Prevention
467.1875 [ d306] Target Security (Channel 4)
467.4875 [ d072] Target Stockroom (Channel 2)
467.5125 [ d115] Target Primary (Channel 1)
467.8500 [ d047] Old Navy

National Harbor
461.7875 [         ] (MOTOTRBO digital modulation--cannot be monitored)
462.0875 [         ] (MOTOTRBO digital modulation--cannot be monitored)

Prince George's Stadium (Bowie Baysox)
154.6000 [ d654]

Regal Bowie Crossing Stadium 14 Theater
464.8750 [100.0]

Six Flags America
151.8800 [  67.0] Food/Concessions
451.8500 [ d261] Engineering (Channel 3) (R)
452.1250 [ d261] Security (Channel 5?) (R)
461.1125 [ d261] Unit-to-Unit (Channel 6) (S)
461.4125 [ d261] (Channel 1) (R)
464.3250 [192.8] "friction wheels"; "train in station" (Channel 7) (S)
464.7750 [ d423] (Channel 8) (S)
464.8750 [ d261] (R)
464.9750 [ d261] (may be obsolete--previously Channel 1) (R)
465.6500 [ d331] First Aid?
467.3875 [ d261]
467.8500 [ d261] Unit-to-Unit (Channel 4)
468.5375 [ d331] Cleaning? (Channel 12)
468.6250 [192.8]
468.9625 [ d261] "backstage" (Channel 10?)

Target (10500 Campus Way S.)
467.5125 [ d115]

Special Events

Joint Services Open House 2008

Andrews AFB Trunked System (P25) Talkgroups:
11 Distinguished Visitors/VIPs; Public Affairs?
103 Aircraft Maintenance
107 Aircraft Maintenance?
153 Law Enforcement Primary (not airshow-related)
155 Law Enforcement (Ch. 2)
157 Airshow Security/Traffic Control (Outside)
159 Airshow Security (Inside)
161 Airshow Security?/Law Enforcement?
203 Fire/EMS Primary (not airshow-related)
259 Trash Collection
313 "crew out"; "meet by C Street Gate"
355 Medical Alternate channel?
359 "drive back to ASS"
405 "truck"; "drop off"
453 Fuel Trucks
457 Fuel Trucks
501 Announcer; scheduling
503 Unknown use (used for Airboss/Narrator comms in 2007)
507 Medical
509 Media (Joint Information Bureau)
515 Unknown use (used for Comms in 2007)
519 Golf Cart Escorts
615 Public Affairs/VIP
617 Public Affairs/VIP
703 "bring command 1 to airshow"; "truck"

Prince George's County:
490.7125 [210.7] PGFD Ops at Andrews (S)
494.8875 [127.3] PGPD FedEx Field Traffic Control/Ops (R)
494.9375 [127.3] PGPD Traffic Control near Andrews AFB (R)

Metro Trunked System Talkgroups:
24624 Bus Supervisors (coordinating shuttles to/from FedEx Field)

Blue Angels:
139.8125 [ CSQ] Ground Ops
142.6125 [ CSQ] Ground Ops
237.8000 [ CSQ] Air Ops
275.3500 [ CSQ] Air Ops
284.2500 [ CSQ] Air Ops
305.5000 [ CSQ] Air Ops
346.5000 [ CSQ] Air Ops

Miscellaneous:
154.5700 [218.1] Concessions
396.8750 [ CSQ] Unknown user
397.4250 [  71.9] Unknown user
461.0875 [ d412] Unknown air team ground ops

Contents © 2008 by David Schoenberger