WebThe Basic Dipole Antenna for 160 meters. One of the major problems with a dipole on 160 meters is physical size. The formula 468/F will give the length for any given frequency, … WebA portable vertical antenna for 10 to 40 meters, designed for mobile operations can be used in a car as seen in pictures. A modified version for 20 and 40 meters is described too. Build this Novice 4 band vertical …
Simple Ham Radio Antennas--How To Build A 10 Meter Dipole.
Web21 aug. 2024 · Step 1. To make the FM dipole antenna First, cut one of your cables in half and strip off about a quarter-inch from both ends to expose some copper wire. Then twist … Web3 apr. 2013 · Bettering the Dipole Antenna. The 80m Amateur Radio band is wide… very wide. Covering 3500 to 4000 kHz, this band extends well beyond the normal resonant range of a single dipole antenna. Short of … cosとは ビジネス
Build a portable 10 meter Yagi Antenna - Simple Ham Radio Antennas
Web8 jun. 2024 · The advantages of these antennas are directional, good front-to-back, and smaller than a Yagi. With the tips of the driven element and reflector bent to nearly touch, … WebA simple wire dipole configuration. The total length of the dipole is given by: Length (feet) = 468 ÷ Frequency (MHz) For example, for the 10 Meter band, we might cut the dipole for … WebSmall loop antenna used for receiving, consisting of about 10 turns around a 12-by-10-centimeter (4.5-by-4-inch) rectangle. If the perimeter of a loop antenna is much smaller than the intended operating wavelengths – say 1 3 to 1 100 of a wavelength – then the antenna is called a small loop antenna. cos 表参道 セール