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- US Forest Service - White River National Forest (CO)
- US Forest Service - William B Bankhead National Forest (AL)
- US Government (WA)
- US Immigration and Customs Enforcement (ICE)
- US Mil Sounder Waterfall
- US Naval Vessels
- US Park Police Unit Numbers
- US Penitentiary Hazelton
- US Penitentiary Hazelton System Information
- US Relocatable Radar
- US Trunked systems to be rebanded
- US and Canada National DSDPlus Network List
- Uintah County (UT)
- Ulster County (NY)
- Ulster County (NY) Fire Tone Outs
- Ulster County (NY) Kingston City
- Ulster County (NY) Other Department Information
- Ultra high frequency
- Umatilla Army Chemical Depot
- Umatilla County (OR)
- Undecodeable NATO Digital Signals
- UniTrunker
- UniTrunker (Retro)
- Unication Voice Pager Receivers
- Unicoi County (TN)
- Unid Federal - BC10 - Poss Yuma Proving Grounds
- Unid Talkgroups Montgomery County (OH)
- Uniden
- Uniden BCDx36HP Quick Keys and Number Tags
- Uniden Band Plan Entry
- Uniden Close Call
- Uniden DMA FAQ
- Uniden DMA Resource Page
- Uniden DMA Scanner Display Questions
- Uniden DMA Scanner Features and Functions
- Uniden DMA Scanner Issues
- Uniden DMA Software Support
- Uniden Digital AGC Tweak Procedures
- Uniden Headphone Jack Modification
- Uniden Home Patrol FAQ
- Uniden Legacy Software Support
- Uniden Multi-Site Trunking
- Uniden Scanner Comparison
- Uniden Scanner Serial Numbers
- Uniden Scanner Test Modes for the HP Series scanners
- Uniden Scanner Test Modes for the XT and P2 scanners
- Uniden Scanner Test Modes for the original DMA scanners
- Uniden Scanner eBay Listings
- Uniden Scanners
- Uniden Scanners Systems, Sites and Groups
- Uniden scanner test modes
- Uniden scanners
- Unidentfied KU/LG&E Talkgroups
- Unidentified Federal (Austin)
- Unidentified Federal Motorola 5627
- Unidentified Federal Motorola B317
- Unidentified Federal TN
- Unidentified Frequencies
- Unidentified LTR (George Town 1)
- Unidentified Motorola 193F
- Unidentified Motorola 2B34
- Unidentified Motorola 3B36
- Unidentified Motorola 3B36 Unknown Talkgroups
- Unidentified Motorola 5F26
- Unidentified Project 25 1B4
- Unidentified Trunked Systems (MN)
- Union County (FL)
- Union County (GA)
- Union County (IL)
- Union County (KY)
- Union County (MS)
- Union County (NC)
- Union County (NJ)
- Union County (NJ) Bridges
- Union County (NJ) Fire/E.M.S. Station Locations
- Union County (NJ) Pager Tones, Codes and Signals
- Union County (OH)
- Union County (PA)
- Union County (SC)
- Union County AR
- Union Grove (WI) Fire Dept
- Union Township
- Union Township (NJ) Fire and EMS Information
- Union Township (NJ) Radio IDs
- United Airlines
- United Airlines (Bush Intercontinental Airport)
- United Airlines - Chicago O'Hare International Site Research
- United Airlines - Chicago O'Hare International Unknown Talkgroups
- United Airlines - Denver International Unknown Talkgroups
- United Airlines - Dulles International Unknown Talkgroups
- United Airlines - Newark Liberty International Unknown Talkgroups
- United Counties of Prescott and Russell (ON)
- United Counties of Stormont, Dundas and Glengarry (ON)
- United States Air Force
- United States Air Force (157)
- United States Air Force (157) Unknown Talkgroups by Site
- United States Air Force (3D6)
- United States Air Force (3D6) Unknown Talkgroups by Site
- United States Air Force (BC31)
- United States Air Force (BC31) Unknown Talkgroups
- United States Army (58A)
- United States Army (58A) Unknown Talkgroups
- United States Army (98D)
- United States Army (98D) Unknown Talkgroups
- United States Coast Guard
- United States Department of Defense
- United States Department of Defense (14C)
- United States Department of Defense (1B5C8-001)
- United States Department of Defense (BEE00-14C) Unknown Talkgroups
- United States Forest Service (CA)
- United States Hot Rod Association
- United States Maritime Administration
- United States Marshals Service
- United States Patent and Trademark Office
- United States Patent and Trademark Office Site Research
- United States Secret Service
- United States Steel Corporation (LTR)
- Universities/Colleges in Buffalo
- Universities Sydney Inner (SI) Division (NSW)
- University Health Network - Toronto General Hospital
- University Health Network - Toronto General Hospital Radio IDs
- University Of Hartford
- University of Akron
- University of Akron Site Research
- University of Central Florida (Capacity Plus)
- University of Central Florida Unknown Talkgroups
- University of Illinois
- University of Illinois at Urbana-Champaign
- University of Kansas / Lawrence / Douglas County
- University of Kentucky
- University of Kentucky Codes, Signals, & Identifiers
- University of Lethbridge
- University of Lethbridge System Research
- University of Maryland
- University of Michigan
- University of North Carolina
- University of North Carolina at Charlotte
- University of North Carolina at Charlotte DMR Bandplan
- University of Northern Iowa
- University of Saskatchewan
- University of Saskatchewan Unknown Talkgroups
- University of West Florida
- Unknown County (SP)
- Unknown Talkgroups
- Updating the Firmware in Uniden DMA Scanners
- Updating the Master Database in Sentinel
- Upper Maryland Eastern Shore Consortium
- Upper Maryland Eastern Shore Consortium Unit IDs
- Upshur County (TX)
- User ID
- Using GPS Data from the RadioReference Database
- Using drivers with an older version of the USB-1
- Using the PCR-1000 with Trunker
- Utah(US)
- Utah (US)
- Utah Communications Authority
- Utah Counties
- Utah County (UT)
- Utah Federal (UT)
- Utah Military
- Utah Sports
- Utah State Agency Radio Call Identifiers
- Utah State Public Service 10-Codes
- Utica Public Safety
- Utica Public Safety (JPJ Communications)
- Utica Public Safety (JPJ Communications) Frequencies and Sites
- Utica Public Safety (JPJ Communications) RIDs
- Utilities (Area Wide) (IL)
- Utilities (Area Wide) (MO)
- Utilities (MI)
- Utilities (NC)
- Utilities (TN)
- Utilities District of Western Indiana REMC
- Utilities Hood County (TX)
- Utilities Mayes County (OK)
- Utilities Ocean County (NJ)
- Utilities Onondaga County (NY)
- Utilities Payne County (OK)
- Utilities Woods County (OK)
- Utility Monitoring
- Utility Monitoring Central Links
- V8 Supercars
- VA ANG 192nd Fighter Wing
- VA STARS Division Map and Frequencies
- VA STARS Interop Talkgroups
- VA STARS Unknown Talkgroups
- VA STARS Users and Radio IDs
- VC Sumner Nuclear Plant
- VC Sumner Nuclear Plant (SC) Unknown Talkgroups
- VEI Communications (NXDN-35)
- VEI Communications (NXDN-35) Trunking Information
- VHF
- VHF/UHF Military Monitoring
- VI-Vitis Sub
- VIA Rail (ON)
- VINSON
- VIPER
- VIPER P25 Radio ID's
- VIPER Radio IDs
- VIPER Statewide
- VIPER TalkGroup ID Ranges
- VL-Valrico Sub
- VOLMET
- VORTEX2
- VORTEX 2 (OK)
- VOX Feed Setup Instructions
- VOX Recorder Setup Instructions
- VSELP
- VT-125/150
- VT-225/MVT-3100
- Valero Refining (Houston)
- Van Buren County (IA)
- Van Buren County (MI)
- Van Buren County (MI) Bridges
- Van Wert County (OH)
- Van Zandt County (TX)
- Vance Air Force Base Garfield County (OK)
- Vance County (NC)
- Vancouver Harbour Greater (YHC) Vancouver County (BC)
- Vancouver Sports
- Vanderburgh County (IN)
- Various Pactor Mode Waterfalls
- Vasu Communications NEXEDGE96
- Vasu Communications NEXEDGE96 Unknown Talkgroups
- Vectren Dayton International Airshow
- Venango County (PA)
- Ventronics (Metro Chicago)
- Ventronics (Metro Chicago) Unknown Talkgroups
- Ventura County (CA)
- Ventura County (CA) Ambulances
- Ventura County (CA) Fillmore VFD
- Ventura County (CA) Fire Prot. Dist.
- Ventura County (CA) Santa Paula FD
- Ventura County (CA) Ventura City FD
- Verizon Center
- Verizon Center (DC) DMR Bandplan
- Verizon Center (DC) Unknown Talkgroups
- Verizon NY
- Vermilion County (IL)
- Vermilion Parish (LA)
- Vermilion Parish (LA) Bridges
- Vermilion River County (AB)
- Vermillion County (IN)
- Vermont(US)
- Vermont (US)
- Vermont Counties
- Vernon County (MO)
- Vernon County (WI)
- Vernon Independent School District
- Vernon Independent School District DMR Bandplan
- Vernon Independent School District TRS Unknown Talkgroups
- Vertel Team Talk MPT
- Vertex
- Vertex Radios
- Vertex Standard Radios
- Vertex Standard VX-130
- Vertex Standard VX-160
- Vertex Standard VX-180
- Vertex Standard VX-210
- Vertex Standard VX-410/420
- Vertex Standard VX-510
- Vertex Standard VX-520
- Vertex Standard VX-530
- Vertex Standard VX-600
- Vertex Standard VX-900
- VicTrack (VIC)
- Victoria(AU)
- Victoria (AU)
- Victoria County (NS)
- Victoria County (TX)
- Victoria Police (VIC)
- Vigo County (IN)
- Viking Communications (New Berlin)
- Viking Communications UHF
- Vilas County (WI)
- Village of Waterford (WI) Fire Department
- Vinton County (OH)
- Virgin Islands(US)
- Virgin Islands (US)
- Virgin Islands Public Safety (MPT-1327)
- Virginia(US)
- Virginia (US)
- Virginia Beach City (VA)
- Virginia Counties
- Virginia Department of Conservation and Recreation (VA)
- Virginia Department of Corrections (VA)
- Virginia Department of Forestry (VA)
- Virginia Department of Game and Inland Fisheries (VA)
- Virginia Department of Transportation (VA)
- Virginia Incorporated Cities
- Virginia International Terminals (Connect Plus)
- Virginia International Terminals (Connect Plus) Unknown Talkgroups
- Virginia Sports
- Virginia State Police (VA)
- Virginia Statewide Agencies Radio System (STARS)
- Viva(York Region)
- VoTran - Volusia County (FL) Transit Unknown Talkgroups
- VoTran - Volusia County Transit
- Vocoder
- Voice Frequency Telegraphy (VFT) Explained
- Voice Scrambling Systems
- Voice Scrambling Systems Waterfalls
- Volusia County (EDACS)
- Volusia County (EDACS) Radio IDs
- Volusia County (EDACS) unknown talkgroups
- Volusia County (FL)
- Volusia County (FL)/Daytona Beach Area Guide
- Volusia County (FL) Drawbridges
- Volusia County (P25)
- Volusia County (P25) System News
- Volusia County (P25) unknown talkgroups
- Volusia County EDACS Radio System Infrastructure
- Voyageurs National Park (MN)
- Vulcan County (AB)
- W.K. Kellogg Airport (BTL) Calhoun County (MI)
- W/S Electronics EDACS
- WA-W and A Sub
- WACN
- WA Mutual Aid (WA)
- WB2JPQ System
- WC-West Coast Sub
- WCN (P25) Network
- WE-West Shore Sub
- WE Energies
- WE Energies (900)
- WE Energies (900) Site Information
- WE Energies Site Information
- WF-West Fork Sub
- WFM
- WM-Wilmington Sub
- WOU
- WR3IRS
- WS-Capital Sub
- WS-Winston Salem Southbound Railway
- WS1010
- WS1025
- WS1040
- WS1065
- WS1080
- WS1088
- WS1095
- WS1098
- WTS NXDN Multi-Site UHF
- WTS NXDN Multi-Site UHF System Research
- WVIRP Site Info (WV)