ground indipendant

Analysis of HF Monopoles - Analysis of several monopole antennas, the differences between a perfect and an imperfect ground and effects using a ground plane made of radials or counterpoises.

Double-L Antenna For 80 and 160 - A vertical antenna for 80 and 160, fed with a single feed line that is simple, effective, and requires no ground system.

20 Meter Ground Plane Vertical Antenna - This is a ground plane antenna for 20 meters with an imput impedance of 50 ohms

146MHz 5/8 Ground Plane Antenna - 146MHz 5/8 ground plane tower mounted antenna. The antenna was largely based information and analysis provided by the RSGB's. VHF UHF Manual, fourth edition by G.R.Jessop, G6JP

Vertical antenna for 50 MHz - 5/8 vertical groundplane antenna for six meters band

70cm 2 x 11 elements Cubical Quad - A group of 2x11 elements all grounded quad antenna for portable operation on 70cm. Included detailed pictures and measurements.

Ground Plane Antenna for 70 cm - It is easy to homebrew this quarter wave ground plane antenna for 70cm.

Ground Plane for 70 cm - A quarter wave ground plane for 70 cm

Aerial Calculations - G4URH calculations to design your own antennas, ground plane, half wave antennas, Quad Antennas and 5/8 verticals

Lowering NVIS antennas - Lowering an NVIS or N.V.I.S. antenna very close to the ground enhances NVIS operation

Quarter wave vertical antenna - About the basics of the quarter wave vertical and ground plane antennas that ares widely used for medium wave broadcasting, mobile radio communications applications and many more.

The W4INF Multiband Vertical - HF antenna for any band you desire, you build yourself. Is a basig ground plane antenna

Ground Plane Verticals - Ground Plane antennas and common mode

The vertical Double-Zepp - The vertical Double-Zepp 2x7 m is a very simple, effective 8-Band-antenna. The end of the Dipol must be 5-10 m above the ground

LCARS - The Lake Country Amateur Radio Service consists of interested amateur radio (Ham Radio) operators from the Virginia and North Carolina counties that surround Kerr Lake and Lake Gaston. Our members have a variety of interests and backgrounds, bringing rich and varied experiences to the club membership.

Conception R.B. - Specialized in the design and manufacture of radio HF-SSB ground and air at the leading edge of technology. HF,VHF,HF radio,antenna baluns,antennas and, Radio hf ssb.

Alltec Asia - Lightning Protection System Surge Protection Grounding System Design Malaysia

Teledao - Manufacturer of Grounding kits, cable, copper lugs, bus bars, brackets, lightning arrestors for coaxial feeder cable & fiber cable lightning protection & grounding

PSK31 Fundamentals and Setup - Background: The PSK31 philosophy, The QPSK mode, Varicode, Sound Card DSP Setup and Operating Tips

Ground Wave Signal Propagation - Article on propagation basics. The ground wave used for radio communications signal propagation on the long, and medium wave bands for local radio communications

Ameritron AL-811H Tuning - Ameritron Al-811H Tuning for Power/Dissipation/Linearity, and More Generally 811A Tube Amps in Grounded Grid

HFUnderground - HFUnderground.com is dedicated to documenting longwave, mediumwave, and shortwave stations, including broadcasters, utility/military stations, pirate radio and spy numbers stations.

Home made Artificial Ground - This Artificial Ground has been designed by Colyn Baillie-Searle GD4EIRP

What Does Your SWR Cost You ? - Wondering whether to spend a fine day with the YL or with the antenna? This article may help you decide by W1GV

UHF on a VHF Rig - This circuit enables fair copy of strong 444 MHz signals, off a local repeater, using a 2m rig and a 1/4λ 70 cm indoor ground plane antenna.