UHF Band (Ch2-69), 45-Element (!!!), 126-inch LPDA (Log Periodic Dipole Array), using zig-zag feedline. From ZS6BTE article "Wideband Antennas for the TV DXer", no longer on QST.NET.
Date(s): 24 Dec 2008. Album by holl_ands. 1 - 7 of 7 Total. 2607 Visits.
enlarge 0KB, 1024x204 1 45-Element Log Peiodic Dipole Array (LPDA) = Top View From ZS6BTE's article "Wideband Antennas for the TV DXer".
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enlarge 0KB, 1024x819 3 Average Gain Test = 0.9903
enlarge 0KB, 1024x819 4 Gain vs Frequency. Excellent 13.5 to 14.5 dBi for Ch14-51. Note some loss of gain above Ch51. [Expect less, due to construction inaccuracies.]
enlarge 0KB, 1024x819 5 SWR (75-ohms) vs Frequency. Excellent for Ch14-Ch51 (470-698 MHz). Small increase above that, esp Ch69 (800-806 MHz).
enlarge 0KB, 1024x819 6 Impedance vs Frequency. Note PERIODIC nature of Gain, SWR and Impedance curves.
