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Hi. Can anyone please confirm for me the resonant frequency of the folded
dipole below? (I calculate abt. 159.025 Mhz). L1 ------------------------------------ | | L2 --------------x L4 x--------------- L3 L5 Tube diameter = 10mm L1: 90Cm; 35.43"; 2.953' L2: 70mm; 2.76"; 0.230' L4: 5.8Cm; 2.28"; 0.190' L3&L5: 42.1Cm; 16.57"; 1.381' L4 is fixed at 58mm, that is the distance between the bolts where the dipole attaches at the feedpoint. I guess I'm ignoring the connections within the plastic connection box, that would perhaps add 2.54Cm; 1.00" ; 0.083' to L3 and L5, which I suppose might make L3 & L5 44.63Cm; 17.75"; 1.46'. But is that of any real significance with such a wide-band antenna. Probably not eh. BTW, Anyone know of an online calculator specifically written for VHF, tube-made, folded dipoles? TIA. Rich. P.S. I'm seeking the dipole to be resonant at 159.025 Mhz. |
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