Killowen Mountain

Northern Ireland · TV

Position: 54.091774, -6.156607
Grid reference: SB28307420
Nation: Northern Ireland
Ground height: 440 m
Antenna height: 14 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: Divis
Ofcom site number: 10730

The position is our conversion of Ofcom's grid reference SB28307420 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.

On the map

Killowen Mountain is not the strongest signal anywhere the model predicts — it is shown here in place. That is normal for a relay, which fills in inside a main station's area.

Television

Multiplexes transmitted from this site, as published by Ofcom.
Mux	Freeview name	Channel	Frequency	ERP	System	Operator
PSB1	BBC A	C27	522 MHz	5 W	DVB-T	BBC
PSB2	D3&4	C21	474 MHz	5 W	DVB-T	Digital 3&4 (ITV/Channel 4)
PSB3	BBC B	C24	498 MHz	5 W	DVB-T2	BBC

Ofcom's notes

SFN with Divis (PSB multiplexes)