SG 1 - some key areas of study -
Unwanted emissions
- (i) spurious and (ii) out-of-band (OOB)
- permitted power limits
- protection of safety and passive services
- boundary between “spurious” and “OOB”
Spectrum management methodologies
- long-term planning for national SM
- economic approaches
Notes:
- 2 types of unwanted emission from a transmitter that could give rise to harmful interference; “spurious” refers to emissions outside the necessary bw and include harmonics, parasitic emissions, intermod products. OOB emissions are defined as those immediately outside the necessary bw and arise from the mod process. SG 1 is concerned with studying such emissions from TXs of all services with a view to making recommendations on max permitted levels. Results required for next WRC, having particularly in mind the possible need for more stringent limits to adequately protect safety services and passive services. Also looking at definitions of the 2 types of emission and boundary between them.
- Places importance of basing National SM not only on current but also on anticipated needs. Studies aim to give guidance for administrations to follow on long-term planning: identification of spectrum requirements (current and future), spectrum availability (current and future), spectrum planning options (which must take account of influencing factors, e.g. economic, social); (Rep. 2015). Separate studies undertaken on economic approaches to National SM (Rep 2012). How to finance the development and maintenance of Nat SM? How to attach a value to the spectrum?