Knockmore TV Transmitter
Located at Lisburn, County Antrim. Broadcasts UK Freeview on channel group Group K, vertical polarisation, at 5 kW.
The short answer
The Knockmore transmitter is one of the UK's main Freeview broadcast sites. It serves an estimated 150,000 people across 2 counties. Important relay south of Belfast.
Technical specifications
- Location
- Lisburn, County Antrim
- Channel group
- Group K
- Polarisation
- vertical
- Power
- 5 kW
- Mast height
- 60 m
- Latitude
- 54.5106°N
- Longitude
- 6.0972°W
Multiplexes (MUXes) carried
Knockmore broadcasts the following Freeview multiplexes. Each MUX carries multiple TV channels.
- BBC A
- D3&4
- BBC B HD
- SDN
- ARQ A
- ARQ B
Counties served
This transmitter is the primary Freeview source for the following counties:
What aerial works on Knockmore?
The transmitter broadcasts on Group K with vertical polarisation. Most modern wideband aerials will receive this transmitter, but a group-specific aerial gives better signal-to-noise where there's known interference. If you're in a known black spot or fringe area, a high-gain Yagi may be needed.