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Antennas : Antenna Calculators- 7 Element Yagi Calculator
- Online javascript antenna calculator designed to give the critical information of a particular beam antenna, in this case a seven element Yagi, for the frequency chosen.
[ Hits: 3439 | Votes: 57 | Rating: 6.72 ]
- KC0KJF Doble Bazooka
- 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) with the shield split at the center and the feedline attached to the open ends.
[ Hits: 986 | Votes: 2 | Rating: 3 ]
- QRO No-Tuner Multiband Dipole
- Construction details of a multiband dipole that can can operate at high power levels, and match its 50-ohm coax feedline without a tuner
[ Hits: 1502 | Votes: 2 | Rating: 4.5 ]
- Line Loss Calculator
- Types of coax-cable with rf attenuator calculator, line loss calculator form includes an antenna gain calculator. This coax loss calculator can help you on choosing the right cable for your antenna sysmte.
[ Hits: 876 | Votes: 3 | Rating: 6.67 ]
- Why good Antennas need good Coax cable
- The importance of an efficient antenna feed line that can minimize the disturbing noise for an optimal signal reception
[ Hits: 462 | Votes: 1 | Rating: 10 ]
- Inductance of Twin Lead
- Calculate the inductance of twin lead online
[ Hits: 343 | Votes: 1 | Rating: 6 ]
- RFD Antenna for 2m
- Building a Resonant Feed line Dipole for 2 Meters
[ Hits: 793 | Votes: 3 | Rating: 7.67 ]
- Revisiting the Resonant Feedline Dipole
- An article on RFD antennas, resonant feed-line antennas
[ Hits: 675 | Votes: 2 | Rating: 10 ]
- EDI Visualizer
- Create an on-line QSO Map of your contacts submitting a simple EDI contest log file. The EDI file must contain locators, the app will create a nice map based on google maps engine.
Map will be saved online and the resulting url can be easily shared on social networks.
[ Hits: 1201 | Votes: 2 | Rating: 5.5 ]
- DX Display
- Provides analytics for a database of years of dxcluster spots, up to the most recent, with displays by histogram, trendlines, and maps
[ Hits: 655 | Votes: 1 | Rating: 1 ]
- KH1/KH7Z Baker Island DX Pedition
- KH1/KH7Z Baker Island, South Pacific IOTA OC-089 by The Dateline DX Association June 2018
[ Hits: 145 | Votes: 1 | Rating: 10 ]
- KH1/KH7Z Log Online
- Search KH1/KH7Z Log online
[ Hits: 351 | Votes: 7 | Rating: 8.57 ]
- Schemes and programmes for radio amateurs
- No matter who you are, beginner or professional, you cannot do without help. For such purposes, and created websites. Website, which aims to help in some areas-engineering. There is a lot of useful diagrams and ideas for improving your summer house, the House or garage. The site has a large number of schemas, programs, online
[ Hits: 314 | Votes: 1 | Rating: 10 ]
- MP3 CW Practice files
- Generate and download morse code practice files in the mp3 format. You can even download the texts to check the resources. Files can be generated online by selecting speed, tone and duration.
[ Hits: 472 | Votes: 3 | Rating: 7.33 ]
- Band Conditions
- Current HF band conditions online report and graphs. This page provides band condition information to CW and SSB Contesters. It can also be of benefit to other Radio Amateurs to determine band condtions for Nets and casual QSO
[ Hits: 3518 | Votes: 22 | Rating: 7.9 ]
- Icom PW-1 Setup Notes
- Icom PW1 Linear Amplifier, setup and configuration PDF file
[ Hits: 435 | Votes: 1 | Rating: 7 ]
- FTDX-3000 Review
- eHam reviews of the Yaesu FTDX-3000 HF Class line transsceiver bu Yaesu
[ Hits: 352 | Votes: 0 | Rating: 0 ]
- IK0WRB Beacon
- Since some people built VHF/UHF beacons based on my keyer, this page describes how to use IK0WRB Keyer this way.
[ Hits: 299 | Votes: 0 | Rating: 0 ]
- Impedance Matching Network Designer
- An online multiple calculator of 16 impedance matching networks
[ Hits: 377 | Votes: 3 | Rating: 7.33 ]
- The myth of SWR causing coax radiation
- There are several reasons that can cause coax line radiation, most of them are related to wrong or missing use of a balun, but none can be imputed to load mismatch.
[ Hits: 752 | Votes: 2 | Rating: 6 ]
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