Rosneath

Scotland · TV, FM and DAB

Position: 55.991962, -4.793796
Grid reference: NS25848119
Nation: Scotland
Ground height: 105 m
Antenna height: 111 m
Aerial group: Group K — C21–48, wideband across the post-clearance band
Polarisation: Vertical and Horizontal
BBC region: Scotland
ITV region: STV Central
ITV news region: STV Central West
Ofcom site numbers: 15211, 15241

The position is our conversion of Ofcom's grid reference NS25848119 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	0.36% of UK Output Areas	a substantial transmitter
FM radio	0.19% of UK Output Areas	a substantial transmitter
DAB radio	0.28% of UK Output Areas	a substantial transmitter

On the map

Where Rosneath 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	2.0 kW	DVB-T	BBC	Rosneath VP
PSB1	BBC A	C39	618 MHz	8 W	DVB-T	BBC	Rosneath HP
PSB2	D3&4	C42	642 MHz	2.0 kW	DVB-T	Digital 3&4 (ITV/Channel 4)	Rosneath VP
PSB2	D3&4	C42	642 MHz	8 W	DVB-T	Digital 3&4 (ITV/Channel 4)	Rosneath HP
PSB3	BBC B	C45	666 MHz	2.0 kW	DVB-T2	BBC	Rosneath VP
PSB3	BBC B	C45	666 MHz	8 W	DVB-T2	BBC	Rosneath HP
COM4	SDN	C33	570 MHz	2.0 kW	DVB-T	SDN (ITV plc)	Rosneath VP
COM4	SDN	C33	570 MHz	8 W	DVB-T	SDN (ITV plc)	Rosneath HP
COM5	ARQ A	C36	594 MHz	2.0 kW	DVB-T	Arqiva	Rosneath VP
COM5	ARQ A	C36	594 MHz	8 W	DVB-T	Arqiva	Rosneath HP
COM6	ARQ B	C48	690 MHz	2.0 kW	DVB-T	Arqiva	Rosneath VP
COM6	ARQ B	C48	690 MHz	8 W	DVB-T	Arqiva	Rosneath 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	89.2 MHz	25 W	25 W	85 m	_BBC_R2_	C202	HV
BBC Radio 3	91.4 MHz	25 W	25 W	85 m	_BBC_R3_	C203	HV
BBC Radio Scotland (FM)	93.6 MHz	25 W	25 W	85 m	BBC_Scot	C415	HV
BBC Radio 1	98.8 MHz	25 W	25 W	85 m	Radio_1_	C201	HV
Heart	101.1 MHz	100 W	100 W	80 m	Heart	C3A9	HV
Clyde 1	103.3 MHz	50 W	50 W	78 m	Clyde_1_	C5B1	HV
BBC Radio 4 (FM)	103.8 MHz	25 W	25 W	85 m	_BBC_R4_	C204	HV

DAB radio

DAB ensembles carried here.
Ensemble	Block	Frequency	ERP	Height	Area	EId	Services
Glasgow	11C	220.352 MHz	1.8 kW	85 m	Helensburgh	C182	14
D1 National	12A	223.936 MHz	600 W	85 m	Rosneath	C181	30
BBC National DAB	12B	225.648 MHz	1.8 kW	84 m	Helensburgh	CE15	16

Glasgow — block 11C

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D1 National — block 12A

BBC National DAB — block 12B

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