South Knapdale

Scotland · TV, FM and DAB

Position: 55.917512, -5.463024
Grid reference: NR83707480
Nation: Scotland
Ground height: 481 m
Antenna height: 49 m
Aerial group: Group B — C35–53, the middle
Polarisation: Vertical and Horizontal
BBC region: Scotland
ITV region: STV Central
ITV news region: STV Central West
Parent transmitter: Black Hill
Ofcom site numbers: 10502, 10599

The position is our conversion of Ofcom's grid reference NR83707480 from OSGB36 to WGS84 [V]. Ofcom publish no latitude and longitude for television sites. The transform is verified rather than assumed: on the 3,403 radio records that carry both, it reproduces Ofcom's own coordinates to within 0.1 m.

How far it reaches

The share of the UK's 238,895 Census Output Areas where this mast is the strongest signal of its kind. Not the share it reaches at all — most places can receive several transmitters, and only one of them can be the best.

Band	Best signal in
Television	0.03% of UK Output Areas	a relay, serving a local area
FM radio	0.04% of UK Output Areas	a relay, serving a local area
DAB radio	0.06% of UK Output Areas	a relay, serving a local area

On the map

Where South Knapdale is the strongest signal for television, FM radio and DAB radio.

Television

Multiplexes transmitted from this site, as published by Ofcom. Ofcom list this mast more than once — usually one row per polarisation — so the last column says which row each multiplex comes from.
Mux	Freeview name	Channel	Frequency	ERP	System	Operator	Ofcom row
PSB1	BBC A	C39	618 MHz	575 W	DVB-T	BBC	South Knapdale VP
PSB1	BBC A	C39	618 MHz	100 W	DVB-T	BBC	South Knapdale HP
PSB2	D3&4	C42	642 MHz	575 W	DVB-T	Digital 3&4 (ITV/Channel 4)	South Knapdale VP
PSB2	D3&4	C42	642 MHz	100 W	DVB-T	Digital 3&4 (ITV/Channel 4)	South Knapdale HP
PSB3	BBC B	C45	666 MHz	575 W	DVB-T2	BBC	South Knapdale VP
PSB3	BBC B	C45	666 MHz	100 W	DVB-T2	BBC	South Knapdale HP

FM radio

FM services. ERP is published separately per polarisation; a dash means nothing is radiated in that plane.
Station	Frequency	ERP (H)	ERP (V)	Height	RDS name	PI code	Pattern
BBC Radio 2	89.3 MHz	1.1 kW	1.1 kW	40 m	_BBC_R2_	C202	HV
BBC Radio 3	91.5 MHz	1.1 kW	1.1 kW	40 m	_BBC_R3_	C203	HV
BBC Radio Scotland (FM)	93.7 MHz	1.1 kW	1.1 kW	40 m	BBC_Scot	C415	HV
BBC Radio 4 (FM)	95.6 MHz	1.1 kW	1.1 kW	40 m	_BBC_R4_	C204	HV
BBC Radio 1	98.9 MHz	1.1 kW	1.1 kW	40 m	Radio_1_	C201	HV
BBC Radio nan Gaidheal (FM)	103.7 MHz	1.1 kW	1.1 kW	40 m	BBC_Gael	C316	HV
Argyll FM	107.7 MHz	—	500 W	27 m	ArgyllFM	C799	V

DAB radio

DAB ensembles carried here.
Ensemble	Block	Frequency	ERP	Height	Area	EId	Services
BBC National DAB	12B	225.648 MHz	5.0 kW	28 m	South Knapdale	CE15	16

BBC National DAB — block 12B

BBC Radio 1BBC GuideBBC Radio 2BBC TravelBBC Radio 3BBC Radio 4Radio 5 LiveRadio 5 ExtraBBC Radio 6MusicBBC Radio 1XtraBBC WorldServiceBBC AsianNetworkBBC Radio 4ExtraBBC Radio1AnthmsBBC Radio1DanceBBC Radio3Unwind

Ofcom's notes

HP allocation added at 700 MHz clearance