The idea behind this antenna was to use multiple conductors in parallel to reduce the resistance losses in the antenna , and thereby improve the efficiency.For a given magnetic loop antenna, doubling the number of conductors from one to two will typically increase efficiency by about a factor of two. There is a limit, and beyond three or four conductors further increases are small, and may not be worth the bother.
The GAWANT Antenna, or Shinagawa Antenna is an half-wave vertical end-fed in a FT817-friendly package
This is a swept-filter spectrum analyzer. Basically, RF and swept oscillator signals are fed to a mixer and the output of the mixer is passed through a highly selective crystal filter.
Wire antenna calculator with inductivity matching coil where length shorter lambda/4
Online free HAM Radio course for Scouts, Guides, Rovers, Rangers
Fox Hunting for Scouts. Jamboree can be an opportunity to promote ARDF among Scouts all around the world.
Dates: Arrival: January 6th , Departure : January 21th 2023 Call sign: TN8K Operators – Petr OK1BOA, Petr OK1FCJ, Palo OK1CRM, Pavel OK1GK , Ruda OK2ZA, Ludek OK2ZC, Karel OK2ZI, David OK6DJ Bands: 160-6m + QO-100