#2000759
“Braitheann cuimse íochtair Aground,F (arna ríomh le hairdí neamhathraithe) ar gheoiméadracht na conaire:”
‘The lower bound of Aground,F (calculated with unmodified heights) depends on the geometry of the path:’;
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#2000819
Más amhlaidh an cás, baintear Adif = Δdif(S,R) agus coinnítear an téarma Aground.
If this is the case, Adif = Δdif(S,R) is taken and the term Aground is kept.
#2000757
“I gcothromóid 2.5.15 (Aground, H) déantar na hairdí zs agus zr a ionadú le zs + δ zs + δ zT agus zr + δ zr + δ zT faoi seach i gcás ina”
‘In equation 2.5.15 (Aground,H) the heights zs and zr are replaced by zs + δ zs + δ zT and zr + δ zr + δ zT respectively where’;
#2000771
Seachas sin, ní mheastar aon laghdú torainn le díraonadh don chonair sin, ríomhtar plána talún meánach coiteann don chonair S -> R, agus ríomhtar Aground gan aon díraonadh (Adif = 0 dB).
Otherwise, no attenuation by diffraction is considered for this path, a common mean ground plane for the path S -> R is calculated, and Aground is calculated with no diffraction (Adif = 0 dB).
#2000802
Sa chás speisialta ina bhfuil an fhoinse faoi bhun an phlána talún mheánaigh: Δdif(S,R)= Δdif(S',R) agus Δground(S,O) = Aground(S,O)
In the special case where the source lies below the mean ground plane: Δdif(S,R) = Δdif(S',R) and Δground(S,O) = Aground(S,O)
#2000815
Sa chás speisialta ina bhfuil an glacadóir faoi bhun an phlána talún mheánaigh: Δdif(S,R)= Δdif(S,R) agus Δground(O,R) = Aground(O,R)”;
In the special case where the receiver lies below the mean ground plane: Δdif(S,R’) = Δdif(S,R) and Δground(O,R) = Aground(O,R)’’;
#2000820
Ina theannta sin, déanfar Aatm agus Aground a ríomh ó fhad iomlán na conaire forleata. Déantar Adiv a ríomh ón bhfad díreach d fós.
In addition, Aatm and Aground shall be calculated from the total length of the propagation path.
#2000793
Is ionann Aground(S,O) agus an laghdú torainn mar gheall ar an éifeacht talún idir an fhoinse S agus an pointe díraonta O. Ríomhtar an téarma sin mar a léirítear san fhoroinn roimhe seo maidir le ríomhanna i ndálaí aonchineálacha agus san fhoroinn roimhe seo maidir le ríomh i ndálaí fabhracha, leis na hipitéisí seo a leanas:
Aground(S,O) is the attenuation due to the ground effect between the source S and the diffraction point O. This term is calculated as indicated in the previous subsection on calculations in homogeneous conditions and in the previous subsection on calculation in favourable conditions, with the following hypotheses:
#2000804
Is ionann Aground (O,R) agus an laghdú torainn mar gheall ar an éifeacht talún idir an fhoinse O agus an pointe díraonta R. Ríomhtar an téarma sin mar a léirítear san fhoroinn roimhe seo maidir le ríomhanna i ndálaí aonchineálacha agus san fhoroinn roimhe seo maidir le ríomh i ndálaí fabhracha, leis na hipitéisí seo a leanas:
Aground (O,R) is the attenuation due to the ground effect between the diffraction point O and the receiver R. This term is calculated as indicated in the previous subsection on calculation in homogeneous conditions and in the previous subsection on calculation in favourable conditions, with the following hypotheses: