antenna grounding

antenna grounding

Antennas : Beverage

• Beverage Antenna Construction  ^updated - Types of beverage wires, choose best supports and insulators, multiple antennas at one feedpoint, all well documented with photos and exaustive explanation. This article offers insights on building Beverage antennas for optimal reception. Key takeaways include using strong wire (copperweld or electric fence), proper termination, and a good grounding system (multiple copper rods). The author recommends maximizing antenna length and orienting it towards desired stations. For best results, utilize an antenna tuner and experiment with termination resistors.
  [ Hits: 15518 | Votes: 9 | Rating: 8.45 ]

• TEFV Terminated End Fed Vee Antenna - The Terminated End Fed Vee Antenna (TEFV) is a travelling wave antenna with constant current distribution. Unlike traditional resonant antennas, TEFV operates without standing waves, using a terminating resistor for broadband efficiency. With a combination of vertical and horizontal polarization, it offers wide bandwidth from 1.8 MHz to 30 MHz, eliminating the need for a tuner. Key components include a 9:1 unun transformer and a 500-ohm terminating resistor. Grounding and counterpoise enhance performance, and it can handle power losses of up to 30%. TEFV provides an effective, versatile antenna solution for amateur radio and broadcast applications.
  [ Hits: 186 | Votes: 2 | Rating: 6.5 ]
• Multi-Band End-Fed Antenna Design for Limited Space  ^new - 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.
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• Broadcast Antennas on Buildings - When a broadcast antenna is to be placed on top of a building, there are special problems of feeding and grounding. The radiator is usually electrically short, that is, much less than one-quarter wavelength high.
  [ Hits: 358 | Votes: 2 | Rating: 10 ]

• Space-Efficient Excellence: Inverted L Multi-Band HF Antenna - Discovering a solution for limited space, the inverted L HF antenna emerges as a stellar performer. Half the size of a dipole, it ensures optimal installation in restricted areas, maintaining superb transmission (TX) and reception (RX) characteristics. Spectrum Communications' multi-band version, featuring traps, proves even more space-friendly without compromising performance. A fiberglass pole offers sturdy support, while proper grounding, an RF choke, and occasional tuning contribute to a high-performing and reliable antenna system.
  [ Hits: 185 | Votes: 0 | Rating: 0 ]

• Ham Radio Tower at N0HR - Ham Radio Tower Project at N0HR. Includes site plan, escavation, tower construction, HF antennas, grounding and lightning protection, coax and more.
  [ Hits: 2962 | Votes: 2 | Rating: 8 ]

• W3EDP and grounding - Discussion on W3EDP Antenna and grounding
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• Volda Communication - Volda is specialized in telecom tower antenna line accessories such as cable hangers, coaxial jumpers, grounding buss bar kits, pole clamps.
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• GME Supply Co - GME Supply Company is your complete source for communications infrastructures, antenna towers, antenna masts and mounts, antenna rotors, telescope towers, grounding.
  [ Hits: 1431 | Votes: 3 | Rating: 10 ]

• Safe,effective grounding - Practical applications for end-fed antenna transformers and safe, effective grounding
  [ Hits: 1182 | Votes: 1 | Rating: 10 ]
• Antenna Grounding System - The antenna grounding system at K3DAV that includes 4 coax lines
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• How to Ground an Antenna: aerial earthing - The antenna ground or earth system can be key to its operation whilst also being a key safety feature. This article is about grounding systems for antennas, covering different aspects of grounds made for antenna safety, or expressly for lightning or just to improve antenna performance, being ground an antenna component.
  [ Hits: 232 | Votes: 1 | Rating: 4 ]

• K1TTT Technical Reference - Technical reference about Accessories, Amplifiers, Antennas, Cable and Connectors, Filters, Geography, Grounding, Gunk, Matching Networks, Projects, Propagation Info Radios, RFI/EMI, Rotors, Station Setup, Towers.
  [ Hits: 5150 | Votes: 6 | Rating: 6.33 ]

• Lightning protection system - A tower grounding project using copper tubing to help protecting an antenna tower by WD0M
  [ Hits: 465 | Votes: 0 | Rating: 0 ]