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361 links - and 3 categories

Antennas : 160M
  • A Lowband Antenna that is Almost Free - The Shunt-fed Tower, an effective Low Band Antenna, uses your beam as a capacitive top-hat and only needs a simple feed network and a good ground system to work DX on 80M and 160M.
    [ Hits: 18744 | Votes: 4 | Rating: 7.75 ]
Antennas : 80M
  • Switchable Antenna 80/160 meters band - A switchable antenna for 80/160 meters by IK1ZOY. A new version of a 1/4L 80 m. dipole modified for use in 160 m. band. using it's own coaxial cable feeder to wrap a coil.
    [ Hits: 17195 | Votes: 6 | Rating: 5.5 ]
Antennas : Baluns
  • HF Home made Balun  pop - A balun is a device that is used at the feedpoint of a balanced antenna when an unbalanced feedline is desired to feed the antenna. Balun is a contraction for BALanced to UNbalanced.
    [ Hits: 39397 | Votes: 30 | Rating: 5.91 ]
Antennas : Bazooka
  • The Double Bazooka Antenna - The Double Bazooka Dipole is a very efficient single band antenna which is very quite, and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends
    [ Hits: 8171 | Votes: 4 | Rating: 8.25 ]
Antennas : Beverage
  • Beverage Antenna Construction - Types of beverage wires, choose best supports and insulators, multiple antennas at one feedpoint, all well documented with photos and exaustive explanation.
    [ Hits: 15515 | Votes: 9 | Rating: 8.45 ]
Antennas : Feed Lines
  • Transmission Lines - Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
    [ Hits: 1272 | Votes: 0 | Rating: 0 ]
  • Feeding the Beast - Transferring Radio Frequency Energy from Your Transmitter to Your Antenna by Don Keith N4KC
    [ Hits: 521 | Votes: 1 | Rating: 10 ]
Antennas : Multiband
  • The 5 Bands Wire-Beam - This wire-beam has one radiator-element, feeded with 450-Ohm-Wireman-twinlead and needs an antenna-tuner. For the bands 6m, 10m, 12m, 15m, 17m and 20m bended reflector-elements are used. The support is a cross of 4 fibreglass-fishing-rods
    [ Hits: 5647 | Votes: 2 | Rating: 7 ]
Antennas : Quad
  • Assembly of the Lightningbolt Quad - One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.
    [ Hits: 3748 | Votes: 10 | Rating: 6.8 ]
Antennas : Theory
  • All HF Band Antennas - F6ITV consideration on HF Antennas, from trap wired anternnas, to center feed antennas.
    [ Hits: 1516 | Votes: 0 | Rating: 0 ]
  • T-Match Construction - The T-Match with its balanced feed point is one method of feeding a Balanced Dipole.
    [ Hits: 763 | Votes: 0 | Rating: 0 ]
Antennas : Tuners
  • N4EKV.COM - Antenna Tuners - Homebrew balanced-L antenna tuner. Covers 160-10m. Designed specifically for balanced feedlines.
    [ Hits: 4727 | Votes: 2 | Rating: 10 ]
Antennas : VHF UHF
  • VHF/UHF Yagi Antenna Design  pop - Design your VHF UHF Yagi antenna online, a JavaScript enhanced web page that implements the design of an antenna for 2m and 70cm bands. This page offers a streamlined experience for Yagi antenna design enthusiasts. It assumes prior knowledge of Yagi design principles, minimizing distractions with a user-friendly interface. Equipped with essential equations, it provides instant design feedback. Red font warnings indicate design limitations, ensuring practical results. Constraints include Gain (11.8-21.6 dBd) and Boom Length (2.2-39 wavelengths), with additional frequency-dependent restrictions noted in input fields.
    [ Hits: 147401 | Votes: 1105 | Rating: 6.95 ]
Ham Radio : Blogs : USA
  • KB3KAI David stansbury - David stansbury kb3kai, amateur radio site with live harford county weather feeds, ham technical info, blog and more
    [ Hits: 321 | Votes: 1 | Rating: 10 ]
Internet and Radio : Police Scanners
  • New York Hudson Falls live scanner - Live feed from Warren county fire dep. radio
    [ Hits: 2301 | Votes: 2 | Rating: 7.5 ]
  • ScannerBuddy.com  pop - Directory of emergency scanners pinpointed by location on a map of the US with direct feeds
    [ Hits: 37789 | Votes: 62 | Rating: 5.33 ]
  • Tucson-area police radio scanner - Launch the StarNet radio scanner to listen to Tucson-area police, fire and other agencies radio transmissions.
    [ Hits: 11794 | Votes: 45 | Rating: 6.08 ]
  • Boston Fire Department Live - Listen to Boston Fire Department live scanner feed
    [ Hits: 16955 | Votes: 83 | Rating: 5.65 ]
  • New York Long Island Scanner Pages - New York / Long Island Scanner forums, chat, and live scanner feeds of Nassau County Fire Departments. Site registration is needed to listen to the live feeds
    [ Hits: 17058 | Votes: 30 | Rating: 4.73 ]
Manufacturers : Antennas : VHF UHF Microwave : Vertical Antennas
  • IK-Telecom - The official web-site of the firm IK-Telecom, Finland, manufacturer of base station antenna-feeder systems
    [ Hits: 831 | Votes: 0 | Rating: 0 ]

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