HAM RADIO: 20 metres - Simple DX antenna. Quarter wave vertical. Tim G5TM 16:17 4 years ago 22 446 Скачать Далее
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20M Vertical Dipole - Amazing Performance - T2LT Design Tech Minds 9:28 3 years ago 77 498 Скачать Далее
Build an EASY 10 Meter (28 MHz) Vertical Antenna for DX! Ham Radio DX 11:02 1 year ago 136 015 Скачать Далее
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HAM RADIO DUAL BAND 20m/40m Vertical Antenna You Can Build. watersstanton 18:06 2 years ago 28 791 Скачать Далее
Easy to Build Vertical No-Radial HF Antenna COASTAL WAVES & WIRES 13:38 1 year ago 68 909 Скачать Далее
20 metre quarter wave portable vertical antenna. Maddog's Ham Radio 6:36 4 years ago 5 637 Скачать Далее
VK2PRC Half Wave End Fed Vertical 20M Antenna for DX. Alexander Ball 52:16 5 years ago 71 294 Скачать Далее
HF Directional Wire Antenna for 20m - Ideal for a Small Garden | HAM RADIO watersstanton 21:24 10 months ago 12 682 Скачать Далее
Easy to Build Quarterwave Vertical Antenna COASTAL WAVES & WIRES 9:36 2 years ago 20 524 Скачать Далее