D.V. Logutov FSUE «VNIIFTRI», Mendeleevo, Moscow region, Russiadv_logutov@vniiftri.ru Al’manac of Modern Metrology № 4 (28) 2021, pages 151–158 Annotation. The article deals with the question: to estimate the influence of conditions on the measurements of the modulus of the reflection coefficient of radio-absorbing pyramidal materials in free space. Key words: modulus of the reflection coefficient, … Continue reading Estimation of the influence of the measurement conditions of the modulus of reflection coefficient of pyramidal radio absorbing materials in a free space