thebigtower


chatton

 

 **ALL PAGES UPDATED JULY 2017**

THE CHATTON TRANSMITTER is the UHF main station that serves North Northumberland, a status which makes it the most northerly main transmitter site in England.

The positioning of the station is approximately two miles south-east of Chatton village, on an area of ground known as both Chatton Sandyfords and Sandyford Moor.

As well as serving a mainly rural and coastal area, Chatton is also the least powerful of the three main UHF transmitters serving the North-East region.  Consequently, it is somewhat detached from its more powerful associates at Pontop Pike and Bilsdale which respectively serve the more populous central and southern sectors of the region.


Mast Images>  Aerials>  Site Images>  UHF Coverage Map


 

 

 Above Right:  A view of Chatton village facing eastwards towards the mast which is actually obscured from view here by the hill in the distance.

From here, access to the transmitting station requires a convoluted south-east-north route to be followed.


PRIMARY UHF COVERAGE

The area and population served by the station is fairly small, the primary service area covering an approximate 20-mile radius from Alnmouth and Alnwick in the south to Berwick-Upon-Tweed and Coldsteam towards the North.  This area essentially slots between the eastern coastline and the service area of the Selkirk transmitter in the Scottish Borders.

STATION HISTORY

Chatton was built by the Independent Broadcasting Authority (IBA) to provide a UHF service to North Northumberland from 1974. The VHF 405-line service to the area was provided by Burnhope (ITV) and Pontop Pike (BBC1) but UHF transmissions from the latter failed to extend to the far northern sectors of the north-east region.  A similar situation existed in the south of the region requiring the construction of the station at Bilsdale.

Transmissions of both BBC services and ITV commenced from Chatton on 19 August 1974.


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mast Images

 

Aerials

 

Site Images

 

 

 

 

UPDATED JULY 2017

 

UPDATED JULY 2017

 

UPDATED JULY 2017

 

 


DIGITAL SWITCHOVER (DSO)

The north-east region was the last on the UK mainland to implement Digital Switchover, with the process taking place across the entire region on the same dates, 12 September 2012 for Stage 1 and 26 September 2012 for Stage 2.

The main engineering change to the Chatton mast was the installation of a six-tier reserve UHF aerial of the familiar wrap-around design, just below the platform near the top of the structure.  Like the Bilsdale and Pontop Pike masts, the main UHF aerial system remains housed within a GRP cylinder, with no indication that this is other than the pre-existing cylinder.

See Aerials page for images before and after installation of the reserve aerial.     


Mast Images>  Aerials>  Site Images>  UHF Coverage Map


STATION INFORMATION


Location:

Sandyford Moor, Northumberland, NE67 5JD

Grid Reference:

NU105264

Landlord:

Arqiva (Legacy: ITA/IBA/NTL Broadcast)

Ground Height:

191m

BBC Region:

North-East and Cumbria

Mast Height:

161m

ITV Region:

Tyne Tees

Aerial Height: (*)

349m

 

UHF Tx Number:

15500

(*) UHF aerial height above sea level (a.o.d)   

 

 


  CURRENT TRANSMISSIONS

Digital Television

 

 

 

Analogue Radio (FM)

 

 

 

 

 

 

 

 

 

Service

: Ch/Polarisation/e.r.p

 

 

 Station:

(MHz)

(e.r.p)

PSB1

: 45 / H / 20kW 

 

 

BBC Radio 1:

99.7

5.6kW

PSB2

: 42 / H / 20kW 

 

 

BBC Radio 2:

90.1

5.6kW

PSB3

: 39 / H / 20kW 

 

 

BBC Radio 3:

92.3

5.6kW

COM4

: 41 / H / 10kW 

 

 

BBC Radio 4:

94.5

5.6kW

COM5

: 44 / H / 10kW

BBC Radio Newcastle:

95.4

5.6kW

COM6

: 47 / H / 10kW

 

 

 

 

 

 

 

 

 

 Digital Radio

 

 

 

 

 

 

 

 

 

BBC National (Block 12B)

 

 

 

 

 

 

 

PRE-DIGITAL SWITCHOVER UHF TRANSMISSIONS

(Shutdown completed 26 September 2012)

Analogue Television 

 

 

 

Digital Television

 

 

 

 

 

 

 

 

 

Service

  Ch/Polar/e.r.p

 

 

 

 

Service

 Ch/Polar/e.r.p

BBC1

: 39 / H / 100kW

 

 

 

 

Mux1

: 40 / H / 6kW

BBC2

: 45 / H / 100kW  

 

 

 

 

Mux2

: 50 / H / 6kW

ITV1

: 49 / H / 100kW 

 

 

 

 

MuxA

: 43 / H / 6kW

Ch4

: 42 / H / 100kW

 

 

 

 

MuxB

: 46 / H / 6kW

Ch5

: No Service

 

 

MuxC

: 47 / H / 2kW

 

  

 

 

MuxD

: 51 / H / 2kW

 

 

 

 

 

 

 

 

 


Bilsdale    Burnhope    Pontop Pike

 

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