thebigtower


rumster forest

 

 

THE RUMSTER FOREST TRANSMITTER is the UHF main station that serves Caithness and Sutherland in the far north of mainland Scotland.  Serving this area, it is unsurprisingly the most northerly UHF main transmitter on the British mainland.

The station also broadcasts BBC National and Local FM Radio and BBC National DAB radio.

Historically, BBC FM radio services came from the nearby Thrumster station which also transmitted BBC 405-line VHF television to the area from 1958 but has been redundant for broadcast purposes since 1984.

Rumster Forest originally entered service in 1965 transmitting ITV on 405-line VHF with its coverage range at the time including the Orkney Islands as well as the mainland area it presently serves on UHF. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mast Images

 

Aerials

 

Site Images

 

Coverage Maps

 

 

 

 

 

 

 

 

 

 

STATION HISTORY

Rumster Forest was constructed by the Independent Television Authority (ITA) and was the first of two transmitters opened in 1965 to extend existing ITV coverage on 405-line VHF in the North-East Scotland (Grampian) region.

The region's ITV service was established on 30 September 1961 with the simultaneous opening of stations at Durris (near Aberdeen) and Mounteagle (near Inverness) but in 1962 the ITA decided to build relay stations to support both these existing transmitters.

In the case of the Durris transmitter, which served Aberdeenshire and North Angus, the ITA designated a relay to improve the service to the Dundee area with the resultant station being constructed at Angus.

In the case of Mounteagle, a relay was required to formally extend the service to the northern extremity of Caithness on the mainland, as well as the Orkney Islands.  For this purpose, the ITA chose the site at Rumster Forest, located around 12.5 miles south-west of Wick and about 15 miles south of Thurso (near John O'Groats).

By this time, the future UHF-colour transmitter network was already being planned and factored into decisions on the siting of further VHF stations.  In the case of Rumster Forest and Angus, both were considered suitable as future main UHF transmitter sites as well as VHF relays, justifying the construction of 750-ft (228m) masts for operation from the outset.

Rumster Forest came into service on 25 June 1965, operating on VHF Channel 8 vertically polarised at a maximum Effective Radiated Power (e.r.p) of 30kW, re-broadcasting the horizontally polarised Channel 12 signal received off-air from Mounteagle.

The Dundee area relay at Angus followed Rumster Forest into service from 13 October 1965, with both stations operating unattended and remotely-controlled by their parent stations.

UHF colour transmission from Rumster Forest commenced on 24 December 1973, the station acquiring main transmitter status from this point.  The original 405-line transmissions on Channel 8 ceased in April 1983. 


Mast Images>  Aerials>  Site Images>  Coverage Maps


 

 

 

 

 

 

 


STATION INFORMATION


Location:

Rumster Forest, Lybster, Scottish Highlands

Grid Reference:

ND197385

Landlord:

Arqiva (Legacy: ITA/IBA/NTL)

Ground Height:

221m

BBC Region:

Scotland

Mast Height:

229.2m

ITV Region:

STV North

Aerial Height: (*)

434m

 

UHF Tx Number:

14800

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

 

 


  CURRENT TRANSMISSIONS

Digital Television  

 

Analogue Radio (FM)

 

 

 

 

 

 

 

 

 

Service

: Ch/Polarisation/e.r.p

 

 

 Service:

(MHz)

(e.r.p)

PSB1

: 27 / H / 20kW 

 

 

BBC Radio 1:

99.7

10kW

PSB2

: 24 / H / 20kW 

 

 

BBC Radio 2:

90.1

10kW

PSB3

: 21 / H / 20kW 

 

 

BBC Radio 3:

92.3

10kW

COM4

: 30 / H / 10kW 

 

 

BBC Radio 4:

95.6

10kW

COM5

: 59 / H / 10kW

 

 BBC Radio Scotland (Inverness):

94.5

10kW

COM6 

: 55 / H / 10kW 

 

 

 BBC Radio nan Gaidheal:

 104.6

10kW

 

 

 

 

 

 

Digital Radio

 

 

 

BBC National (Block 12B)  

 

 

 

 

 

 

 

 

 

 

 

PRE-DIGITAL SWITCHOVER UHF TRANSMISSIONS

(Shutdown completed 16 June 2010)

Analogue Television 

 

 

 

Digital Television

 

 

 

 

 

 

 

 

 

Service

  Ch/Polar/e.r.p

 

 

 

 

Service

 Ch/Polar/e.r.p

BBC1

: 31 / H / 100kW

 

 

 

 

Mux1

: 28 / H / 1kW

BBC2

: 27 / H / 100kW  

 

 

 

 

Mux2

: 22 / H / 1kW

ITV1

: 24 / H / 100kW 

 

 

 

 

MuxA

: 25 / H / 2kW

Ch4

: 21 / H / 100kW

 

 

 

 

MuxB

: 32 / H / 1kW

Ch5

: No service

 

MuxC

: 62 / H / 2kW

 

 

 

 

 

 

 

MuxD

: 59 / H / 2kW

 

 

 

 

 

 

 

 

 


Site Home