high point nc

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Antennas : End-Fed

  • Multi-Band End-Fed Antenna Design for Limited Space - This document details the construction of a multi-band end-fed antenna, suitable for situations with limited space for larger antennas. The design utilizes a 1:49 to 1:60 impedance transformer to match a half-wave wire antenna fed at one end. Compared to a traditional dipole, this antenna resembles a highly unbalanced Windom antenna with one very long leg and a virtual short leg. The design eliminates the need for radials but relies on the coax cable shield for grounding. The document recommends using at least 10 meters of coax and installing a common mode filter at the entry point to the shack for improved performance.
    [ Hits: 76 | Votes: 0 | Rating: 0 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • 20m Half-Wave End Fed - A Half wave antenna has a high impedance feed point. This can be matched using a 1/4 wave stub matching section and converts the 40m vertical into an L-shaped 20m J-Pole antenna. The 300 ohm feeder used for this purpose must be kept away from the ground.
    [ Hits: 1846 | Votes: 7 | Rating: 8 ]
Antennas : Halo
  • Halo Antenna for 50 MHz - The antenna described in this article is for 50 MHz, but the design can be scaled for any band, including VHF, UHF, or even the higher HF bands. The antenna is nothing more than a square loop of wire, approximately 30" (or ~76cm) per side. The loop is fed in the middle of one side, and the opposite side to the feed point has a gap in it.
    [ Hits: 301 | Votes: 0 | Rating: 0 ]
Antennas : VHF UHF
  • DK7ZB 144 mhz Yagis - High gain, good pattern and acceptable bandwidth. These aims can be realized with a radiation-resistance of 25-35Ohms, because the 28-Ohm-feedpoint is very simple to match.
    [ Hits: 1909 | Votes: 7 | Rating: 6.86 ]
DX Resources : Contest : Contest Results
  • Unearthing VHF Contest Secrets: An In-Depth Analysis - In this article, authors delve into the inner workings of the IARU R1 VHF contest, the world's largest 2m contest. While activity levels are declining, the top performers consistently maintain their results. Authors explore the physical constraints of achieving higher point totals and speculate on various factors like improved technical capabilities, increased interference, and evolving station setups. It is a fascinating journey into the contest's dynamics, leaving room for intriguing speculations about its future.
    [ Hits: 71 | Votes: 2 | Rating: 10 ]
Ham Radio : Clubs : North America : USA : North Carolina
  • W4UA High Point Amateur Radio Club - Web site for the High Point Amateur Radio Club, serving High Point, NC and surrounding area communities.
    [ Hits: 338 | Votes: 1 | Rating: 10 ]
Manufacturers : Antennas : VHF UHF Microwave : Satellite antennas
  • Austin Antenna - Austin Antenna employs leading-edge antenna technology in the production of the highest performance antennas currently available. Marine Antenna, Multi-band Mobile, Point-to-Point, Base Station, Wide-band Land Based, LPDA, Linear Omni, Triplexer, Scanner Antennas
    [ Hits: 4142 | Votes: 7 | Rating: 8.43 ]
Propagation : Resources
  • VOACAP Quick Guide - A Quick Guide to using VOACAP - Point-to-Point High-Frequency Ionospheric Communications Analysis and Prediction Program
    [ Hits: 670 | Votes: 7 | Rating: 4.71 ]
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