BroadBand HEX Beam the K4KIO Centre Post Build •Original Plan was to build according to the website of Leo Shoemaker K4KIO •We didn’t like the proposed Centre Post •A water problem waiting to happen so we tried building the matching sections inside the post En el sitio de K4KIO se dispone de una descripción funcional de la antena asi
Sebelummemulai merakit sebuah PLL CMOS V6C mari kita pelajari karakter dari VCO Veronika, karena jenis vco veronika menggunakan prinsip doubler. jadi intinya 2 buah vco 50 Mhz digabungkan akan menghasilkan frequency doubler 100 Mhz. Freq doubler inilah yang akan di kuatkan oleh buffer dan final, yaitu transistor C2053 sebagai buffer dan C1970 sebagai finalnya. Atest antenna was made for 144.5 MHz consisting of four horizontal loops made of 3/8 inch diameter soft copper tubing and two #18 (0.040 inch diameter) vertical wires. A loop drawing is shown in Figure 2. For the top and bottom loops, L = 31 7/16 and S = 1 5/8. For the middle loops, L = 28 5/16 and S = 1½. Cut the copper tubing to the lengths