Note 1: Path loss may be due to many effects such as free-space loss, refraction, reflection, aperture-medium coupling loss[?], and absorption.
Note 2: Path loss is usually expressed in dB. Synonym path attenuation.
Source: from Federal Standard 1037C and from MIL-STD-188
... by commissioning new trains with no on-board toilets. The franchise to operate these routes was due to run until 2006, but in June 2003 the Strategic Rail Authority[?] ...
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