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United Kingdom > England > Greater London (County) > Transport for London Buses

Transport for London Buses


System Name:Transport for London Buses
Location:London, EN
County:Greater London
System Type:MPT-1327 Standard
System Voice:Analog
Last Updated:June 15, 2014, 7:52 pm (Updated General Trunked System Information)
 


Latest News Update Posted on 2008-03-23 06:16:04


System Implementation Timeline:

- Factory Acceptance Test completed in New Zealand May 06

- System Acceptance Test completed Jan 07

- Network Acceptance Test completed May 08

- Installation Roll-out completed Sept 09

Misc System Information


LONDON BUSES





This system is a  10 site, 76 channel VHF MPT-1327 system installed by Tait Electronics, New Zealand on behalf of Siemens Electronics.

The system offer enhanced voice clarity, capacity and coverage over the previous system.

The network will use frequencies in the 139MHz band, which is managed by JRC and previously used by electricity companies. All channels use  12.5KHz spacing as per standard in the UK, but unusually the frequencies have a 6.25 kHz offset as per the bands conditions.

The system uses:

- TaitNet 5100 Dual Node Controller System
- Tait Dispatcher Interface Protocol Gateway development
- MAP27 Interface Development
- Scaleable to use 10,000 Tait TM8252 Bus Radios
- 141 Tait Line Dispatcher Terminals
- 300 Tait Orca 5040 Handportables
- Coverage Across M25 London Basin

The upgrade is part of the "i-bus" project. This is a big investment in transport infrastructure to prepare for the 2012 Olympic Games which are to be held in the city.

Some channels use a 88.5hz CTCSS tone on a mixture of inputs/outputs and data control channels.


System Frequencies
Red (c) are primary control channels | Blue (a) are alternate control channels | Site Map(s): RR Locations

SiteNameFreqs       
2185 (889) Bushney Heath139.53125c 139.64375 139.75625 139.86875 139.99375 140.11875 181.3125a  
2193 (891) Crystal Palace - BBC139.59375c 139.70625 139.78125 139.81875 139.89375 139.93125 140.01875 140.03125
    140.05625 140.14375 140.18125 140.43125        
2201 (899) Guys Hospital139.55625c 139.60625 139.61875 139.71875 139.73125 139.83125 139.84375 139.94375
    139.95625 140.06875 140.19375 140.20625 140.24375 140.28125 140.31875 140.33125
    140.39375 140.40625 140.44375 140.45625        
2209 (8A1) Tolworth139.58125c 139.69375 139.80625 139.91875 140.04375      
2217 (8A9) Shooters Hill139.51875c 139.63125 139.74375 139.85625 140.10625 140.23125    
2225 (8B1) Alexandra Palace139.54375c 139.65625 139.76875 139.88125 140.00625 140.08125 140.13125 140.25625
    140.34375 140.46875 140.48125          
2233 (8B9) Northolt140.26875c 140.29375 140.41875          
2241 (8C1) Faggs Lane (Feltham)139.96875c 140.09375 140.21875          
2249 (8C9) Mill House139.56875c 139.68125 139.79375 139.90625 140.15625 140.35625    
2257 (8D1) Unknown139.98125c 140.16875 140.30125          


System Talkgroups
List All in one table     Show New Talkgroups

All Talkgroups Talkgroups

DEC Mode  Alpha TagDescriptionTag  
12 A 1ST CAP 1ST CAPITAL BUSES : CAPITAL , CENTREWEST  Transportation 
13 A Abellio Srry Abellio Surrey  Transportation 
16 A QUAL LINE QUALITY LINE BUSES  Transportation 
19 A E THAMES EAST THAMES BUSES  Transportation 
25 A Abellio Ldn Abellio London  Transportation 
28 A STAGECOACH STAGECOACH  Transportation 
32 A ARRIVA S END ARRIVA : SOUTHEND  Transportation 
35 A ARRIVA SHIRE ARRIVA : SHIRES  Transportation 
36 A Go Ahead Ldn GO AHEAD : London  Transportation 
40 A London Utd London United  Transportation 
42 A METROBUS METROBUS  Transportation 
44 A METROLINE METROLINE  Transportation 
45 A ARRIVA LONDN ARRIVA - LONDON  Transportation 
55 A TRANSDEV TRANSDEV : STAGECOACH  Transportation 
78 A ARRIVA ORIG ARRIVA : ORIGINAL TOURS  Transportation 
79 A CT PLUS CT PLUS  Transportation 
80 A NCP CHALLNGR NCP CHALLENGER  Transportation 
127 A RADIO ENG RADIO ENGINEER  Transportation 


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