Londonderry

Northern Ireland · TV, FM and DAB

Position: 55.003013, -7.369608
Grid reference: NV56808080
Nation: Northern Ireland
Ground height: 168 m
Antenna height: 118 m
Aerial group: Group A — C21–37, the low end of the band
Polarisation: Vertical
BBC region: Northern Ireland
ITV region: Northern Ireland
ITV news region: Northern Ireland
Parent transmitter: Limavady
Ofcom site number: 13001

The position is our conversion of Ofcom's grid reference NV56808080 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	0.09% of UK Output Areas	a relay, serving a local area
FM radio	0.13% of UK Output Areas	a substantial transmitter
DAB radio	0.10% of UK Output Areas	a substantial transmitter

On the map

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

Television

Multiplexes transmitted from this site, as published by Ofcom.
Mux	Freeview name	Channel	Frequency	ERP	System	Operator
PSB1	BBC A	C29	538 MHz	2.0 kW	DVB-T	BBC
PSB2	D3&4	C31	554 MHz	2.0 kW	DVB-T	Digital 3&4 (ITV/Channel 4)
PSB3	BBC B	C37	602 MHz	2.0 kW	DVB-T2	BBC

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	88.7 MHz	15.6 kW	15.6 kW	77 m	_BBC_R2_	C202	HV
BBC Radio 3	90.9 MHz	15.6 kW	15.6 kW	77 m	_BBC_R3_	C203	HV
BBC Radio Ulster/Foyle (FM)	93.1 MHz	15.6 kW	15.6 kW	77 m	BBC_Fyle	C419	HV
BBC Radio 4 (FM)	94.9 MHz	5.0 kW	5.0 kW	77 m	_BBC_R4_	C204	HV
BBC Radio 1	98.3 MHz	15.6 kW	15.6 kW	77 m	Radio_1_	C201	HV
Classic FM	100.5 MHz	15.5 kW	15.5 kW	77 m	Classic_	C2A1	HV
Cool FM/Downtown Radio	102.4 MHz	5.0 kW	5.0 kW	77 m	Downtown	CC86	HV

DAB radio

DAB ensembles carried here.
Ensemble	Block	Frequency	ERP	Height	Area	EId	Services
D1 National	11D	222.064 MHz	6.2 kW	99 m	Londonderry	C181	30
BBC National DAB	12B	225.648 MHz	6.3 kW	98 m	Londonderry	CE15	16
N. Ireland	12D	229.072 MHz	6.3 kW	99 m	Londonderry	C193	15

D1 National — block 11D

BBC National DAB — block 12B

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N. Ireland — block 12D

Cool FMDowntown RadioQ RadioBBC UlsterBBC Radio FoyleDowntown CountryAbsolute 00sU105HITS RADIO N IREGrt Hits NIAbsolute 10sCool Old SkoolHits Radio PrideKISS XtraKISS Dance