Zweikanalton ("two-channel sound") or A2 Stereo, is an analog television sound transmission system used in Germany, Austria, Australia, Switzerland, Netherlands and some other countries that use or used PAL-B or PAL-G. TV3 Malaysia uses Zweikanalton on its UHF analogue transmission frequency (Channel 29), while NICAM is instead used on its VHF analogue transmission frequency (Channel 12). South Korea also formerly utilised a modified version of Zweikanalton for its NTSC analogue television system until 31 December 2012. It relies on two separate FM carriers.