RECOMMENDATION ITU-R F.1491 - ERROR PERFORMANCE OBJECTIVES FOR REAL DIGITAL RADIO LINKS USED IN THE NATIONAL PORTION OF A ...
ANNEX 1 - Examples of calculation for real links
ANNEX 2 - Error performance events for different SDH radio-relay link configurations
1 Introduction
2 Link-end points are path end-points with and without frequency diversity
3 Link end-points are SDH multiplex section (MS) end-points
    3.1 One hop MS without frequency diversity protection
    3.2 One hop MS with frequency diversity protection
4 Link end-points are SDH regenerator section (RS) end-points
    4.1 One hop RS without frequency diversity protection
    4.2 RS with frequency diversity protection switching
    4.3 Multihop RS without frequency diversity protection
5 Link end-points are combinations from the previous ones