Bwlch yr Hwch, Cwm Hirnant, Rhosygwaliau.
Installation of a 5m tower extension. Relocation of 2 antennas and 2 dishes to the top of the extension (approved under previous application). Installation of 6 new antennas, 6 new ground-based cabinets, remote radio units, GPS nodes, mast head amplifier and associated apparatus and ancillary works