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The Spectrum Mask for P-P and P-MP can be found in EN 302 217-2-2 Annex A (table A4) and ETSI EN 302 326-2 (Section 5.3.4.1) respectively. Blocking information is available from EN 301 390 (Section 7).
With respect to antenna height for P-P, the BS and TS minimum antenna height are about 20 m and for P-MP, the BS minimum antenna height is about 20 m and the TS minimum antenna height is about 1.5 m.
For the antenna elevation, some countries have reported an elevation range of 3 to 10 degree. Note that degrees. In rare cases a range of maximum elevation angle from 15 to 30 degree degrees has been reported in some countries in rare cases.
ECC Report 100 widely uses an I/N ≤ -10 dB; I/N ≤ -6 dB is there mentioned only for the protection of ENG/OB. FS systems (for both P-P and P-MP systems) commonly adopt I/N ≤ -10 dB as in line with Rec. ITU-R SG5 has recently confirmed in the draft revision of Rec. F.758-4.
[1] The System noise power density shall be obtained from the following equation:
N0 (dBW/Hz)= F(dB) + 10*log10(kT0)
Where : T0 = 290 K, F is the noise figure and k is the Boltzmann constant it results:
N0 (dBW/Hz) = F(dB) - 204 (dBW/Hz) or N0(dBm/MHz) = F(dB) - 114 (dBm/MHz)
[2] The difference between the peak gain values of stations FS1 and FS2 comes from the fact that a typical PP FS station with high elevation angle (10°) is usually employed for short-range links near hilly areas.