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Antennas : 160M
A Lowband Antenna that is Almost Free
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- 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.
PA0NHC 80/40mtrs dipole antenna
- Dipole antenna for 80 to 20 mtrs with END-coax feed by PA0NHC
HF Home made Balun
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- 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.
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
Transmission Lines
- Articles on SWR measurements and feed lines tuning.
Feeding the Beast
- Transferring Radio Frequency Energy from Your Transmitter to Your Antenna by Don Keith N4KC
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
80 Meter Multiband doublet antenna
- 80 meter multiband doublet antenna with open wire feedline for 80-10 meters by N1LO
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.
All HF Band Antennas
- F6ITV consideration on HF Antennas, from trap wired anternnas, to center feed antennas.
T-Match Construction
- The T-Match with its balanced feed point is one method of feeding a Balanced Dipole.
N4EKV.COM - Antenna Tuners
- Homebrew balanced-L antenna tuner.
Covers 160-10m. Designed specifically for balanced feedlines.
NCDXF/IARU Beacon Project
- The NCDXF, in cooperation with the IARU, constructed and operates a worldwide network of high-frequency radio beacons on 14.100, 18.110, 21.150, 24.930, and 28.200 megaHertz. These beacons help both amateur and commercial high-frequency radio users assess the current condition of the ionosphere
OH0 DX-pedition
Priority listing
- Recurrent expeditions to Aaland Island by SM5HJZ
KB3KAI David stansbury
- David stansbury kb3kai, amateur radio site with live harford county weather feeds, ham technical info, blog and more
Radio 2 Radio Blog
- Radio 2 Radio broadcasts amateur & HAM radio news and current events from around the world.
K6RF Streaming Video
- Live video and audio feed from K6RF ex K6DXC radio shack. Audio is from either the FT-920, FT-817 receivers or a microphone. Video is from a Logitech Pro-4000 Webcam
Listen to K0KKV 146.760 Mhz Live
- Login and you will find a live feed from Lincoln Nebraska, USA, via Microsoft Windows Media, some recorded nets from various days and events. You can listen live 146.760 MHz over the internet.
ScannerBuddy.com
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- Directory of emergency scanners pinpointed by location on a map of the US with direct feeds
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
IK-Telecom
- The official web-site of the firm IK-Telecom, Finland, manufacturer of base station antenna-feeder systems
Pactor III
- PACTOR-III is a software upgrade for existing PACTOR-II modems that provides a new data transmission mode for improved speed and robustness. PACTOR-III is not a new modem or hardware device. Most current PACTOR-II modems are upgradeable to use PACTOR-III via a software update since PACTOR-II firmware accommodates the new PACTOR-III software
XLZIZL by AC6LA
- XLZIZL is an Excel application that analyzes the components of an antenna feed system, including transmission lines, stubs, baluns, and tuners. Calculations include impedance transforms, SWR and reflection coefficient, power loss, voltage and current standing waves, stress on tuner components, network attenuation (S21), and return loss Analysis results are available in worksheet format and in five different chart formats, including Smith charts.
Propfire Firefox propagation extension
- Propfire is an extension to the Firefox web brower that displays current propagation information by N0HR
GeoAlert-Extreme Wizard
- GeoAlert-Extreme Wizard maintains updated geophysical indices and displays the information in a friendly - at a glance - manner. GeoAlert-Extreme Wizard features a Global Maximum Usable Frequency, MUF, map that creates and manages predictions from the VOACAP engine.
Displayed geophysical indices include: solar wind Bz component, speed and pressure, current WWV type indices and predicted solar flux, planetary A-Index and probability of major storms at middle latitudes for the next day.
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