Editing Co-channel interference (section)

== Poor frequency planning ==
Poor planning of frequencies by broadcasters can cause CCI, although this is rare. A very localised example is [[Listowel]] in the south-west of [[Ireland]]. The [[2RN (RTÉ Networks)|2RN]] UHF television transmitter systems in Listowel and [[Knockmoyle transmitting station|Knockmoyle]] (near [[Tralee]]) are on the same frequencies but with opposite polarisation. However, in some outskirts of Listowel town, both transmitters can be picked up causing heavy CCI. This problem forces residents in these areas to use alternative transmitters to receive RTÉ programming.