Graph 1 it is half semmetry brace up child cable deserves to accept a plan, because half brace up child The input impedance that looked at 2 o'clock from AB is 73 , two brace up child have symmetry rightly, reason A, B was 73/2=36.5 respectively to t

100kHz-30MHz active antenna The spare radio lover that lives in the city often accepts the restriction of aerial and cannot satisfactory reception in distance, the signal that shortwave broadcasting station transmits. Because performance is good,this

ColinearGroundPlane, be called papaya the reason already cannot be taken an examination of, have in impression because of,saying is milk of 500cc Chinese flowering quince and come, the sort of number that uses because of most person is the long anten

Main component is commonly used shortwave antenna 3 kinds, the first kind is perpendicular antenna (GP) , the 2nd kind is occasionally class antenna (DP) , the 3rd kind is 8 wood antenna (YAGI) . Besides, still have circle model, diamond, dish etc, b

Aerial is basic concept Aerial is the ear of FM DX, faint electric wave enters receiver through line of make a present of from aerial, ability lets us hear the voice of distance broadcasting station. One receives systematic stand or fall, aerial took

J pole child (J-Pole) aerial blasts off by wave of a 1/2 yuan (part of right graph A) match with drive of wave of a 1/4 implement (part of right graph B) form, it is equal in value at from extreme drive occasionally extremely aerial, because of its c

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