FIELD: physics.
SUBSTANCE: frequency range measurement allows to remove re-reflection effect and to perform works in indoor halls with re-reflections. Invention implies that commutators are switched from one direction to another, while generator is frequency readjusted. Thus, almost simultaneous measurement of reference and measured attenuators is provided at equal power and constant parameters of measuring receiver.
EFFECT: higher measurement accuracy due to measured level lowering.
1 dwg
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