Unless licence exempt, all wireless telegraphy equipment requires a licence.
In Ireland, there are a large number of radio systems which are exempt from licensing.
Licence exempt radio equipment operates on a non-interference, non-protected basis and in radio spectrum that is shared with other radio devices.
Licence exempt equipment may not cause interference to other devices and may not claim protection from any interference received.
Additional specific conditions may be included for licence exempt radio equipment. Please check the relevant document as indicated in the list of licence exemptions.