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Seemed I've left a piece out
Re: Log Periodic Antennas
I could design one for you but the construction is a bit more complex - not difficult but "fiddly". One would make it out of wire but the problem would be mounting it pointing upwards - Easily done but it would end up looking like a sailing ship's rigging.
The log periodic is a broadband antenna with a gain equal (about) to a dipole where the resonance moves smoothly from one element pair to the next. They are mostly used for receiving a wide range of signals - say using a scanner . I have built only one "serious" LP in my life it was for a job and was a "*****" to build setup and test - brief spec - LH circularly polarised LP flat from 10MHz. to 1000MHz.
Jerry.
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