The Liberia Telecommunications Authority (LTA) is empowered by the 2007 Act to manage and monitor the radiofrequency spectrum of Liberia, which is a scarce resource.
One of the key functions of the LTA is therefore to ensure the efficient utilization of the spectrum. Thus spectrum planning and allocation, assignment of frequencies to users for different radio services, frequency coordination with adjacent administrations, database of assigned frequencies, enforcement of regulations and license conditions, principally to stop interference from wrongful or illegal users, are part of LTA’s major regulatory activities.
The LTA’s spectrum planning and allocation follows International Telecommunication Union’s Radio Regulation guidelines but with local dissimilarity.
LTA has granted frequency authorizations and issued licenses in the GSM900 and E-GSM900 bands, DCS1800 band, UMTS band, 1800 MHz LTE band. LTA has also granted authorizations and issued licenses in the 2.3 GHz, 2.5 GHz and 3.5 GHz bands.
A key and critical function of the LTA is also to monitor the frequencies it has assigned. Thus the LTA has a Spectrum Monitoring Section. The section is responsible to detect the illegal or wrongful use of frequencies. It is primarily responsible to stop illegal use of frequencies. It makes sure that all assigned frequency bands and those earmarked to be assigned are free of harmful interference.
It is therefore essential and mandatory that the Spectrum Monitoring Section be equipped with Spectrum Monitoring System to enable carry out its regulatory functions. Spectrum monitoring system is the ears of every regulatory authority. It provides real-time information on radio usage as well as on-the-spot measurements of new and existing assignments. It plays a pivotal role in policing the use of the radio spectrum thus making sure that the limited resource is effectively and efficiently used for the benefit of the Government of Liberia, the service providers and the Liberian populace.