Log Periodic aerial for digital reception
Log periodic aerials are often suitable for UHF digital reception , except in areas where the signal strength is weak coming form the transmitter.
The log periodic aerial has elements of different lengths and spacing of the dipoles, which reduce towards the front of the aerial.
This means that the aerial has only two or three elements at or near resonance.
So what does that mean to you?
Compared to a Yagi aerial design for the same number of elements, the log periodic aerial has less gain (is weaker) but has a flatter frequency response. The Log periodic aerial also naturally gives an unbalanced feed, meaning that for digital reception you do not need a balun.
This means that in certain circumstances , as an aerial for digital TV, it can sometimes be a better choice to use.
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