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Antennas : Baluns : 4 to 1 balun- Balun single core 4:1 analysis
- Real 4:1 Transmission Line Balun with Balanced Load
[ Hits: 6160 | Votes: 1 | Rating: 10 ]
- Build a 2.4GHz Vertical antenna
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- Building a 2.4GHz vertical collinear omnidirectional antenna
[ Hits: 77406 | Votes: 118 | Rating: 6.27 ]
- Antenna Transmatch Tips
- Tips on tuning antennas using Antenna Tuning Units also called ATU. This article explains the functions and ills of tuners, along with some guide- lines for building an ATU.
[ Hits: 3312 | Votes: 5 | Rating: 6.4 ]
- Choke balun
- Essentially, a choke balun is designed to 'divorce' your antenna from the feed line. if your feed line is coaxial cable then you don't want it to be part of your antenna. you want to be able to deliver all your power to the radiator itself, i.e. 'the antenna'. a choke balun does this admirably
[ Hits: 573 | Votes: 11 | Rating: 7.27 ]
- 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 ]
- N4EKV.COM - Antenna Tuners
- Homebrew balanced-L antenna tuner.
Covers 160-10m. Designed specifically for balanced feedlines.
[ Hits: 4727 | Votes: 2 | Rating: 10 ]
- Cebik antennas and limited space dipoles
- An analysis of the cebik dipole and other small limited space dipoles fed with open wire ladder line.
[ Hits: 2826 | Votes: 3 | Rating: 9.33 ]
- VK9EC VK9EX Online Log
- Cocos-Keeling Islands, Christmas Island Online Log
[ Hits: 664 | Votes: 19 | Rating: 6.58 ]
- Onlineradio.fr
- French amateur radio blog
[ Hits: 526 | Votes: 7 | Rating: 7.43 ]
- PA3ANG's Weblog
- Dutch ham radio station includes links to personal online scanners with live streaming on the net
[ Hits: 555 | Votes: 1 | Rating: 10 ]
- DG7BBU blog
- Ham radio, communications and computing at christopher's blog
[ Hits: 349 | Votes: 1 | Rating: 9 ]
- The Art & Skill of Radio-Telegraphy
- A freware book on learning morse-code. The Art & Skill of Radio-Telegraphy Third Revised Edition by William G. Pierpont N0HFF, online version available in multiple languages
[ Hits: 1875 | Votes: 3 | Rating: 8 ]
- Live receiver from Holland
- PA3ANG online receiver Ten-Tec RX320 from holland
[ Hits: 5749 | Votes: 8 | Rating: 3.62 ]
- Boston Fire Department Live
- Listen to Boston Fire Department live scanner feed
[ Hits: 16956 | Votes: 83 | Rating: 5.65 ]
- EZ Hang
- The perfect tool when you want to put up a wire antenna easily, quickly and safely! EZ HANG can be used to "shoot" a line over a tree or other object over 100 feet high
[ Hits: 3451 | Votes: 3 | Rating: 7 ]
- Sunstone Circuits
- Sunstone Circuits is your easiest source for quoting and ordering printed circuit boards online. We are three respected brands in one: PCBexpress quickturn boards, PCBpro.com full-featured and design-checked boards, and PCB123 design software.
[ Hits: 689 | Votes: 3 | Rating: 8 ]
- Alpha Linear Amplifiers
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- RF Concepts manufacturer of Alpha Linear Amplifiers, amateur radio RF power amplifiers, commercial power amplifiers, power meters and dummy loads.
[ Hits: 26428 | Votes: 21 | Rating: 7.8 ]
- ARIDX by UA1AAF
- At the moment the most used program is UA1AAF. It is an excellent program written by Boris, UA1AAF, to handle ARI International DX Contest. It can simulate K1EA or N6TR workings; it will be possible to connect the RTX to the computer using a standard interface in such a way as to transmit directly in CW from the keyboard; most of the controls are like K1EA's CT and N6TR's TR ; on line help provides almost all the information necessary for using the program. Is possible to insert QSO after the contest. An appropriate utility in included for conversion in ADIF format. The program is very small and therefore works without any problems on any IBM compatible computer with DOS 3.3 and over or Windows 95/98.
[ Hits: 1468 | Votes: 4 | Rating: 5.5 ]
- Build an HF Linear Amp
- Hombrew project to build an HF linear amplifier whose output is 210W for 16W of drive on 80M and max output is 300W.
[ Hits: 22688 | Votes: 8 | Rating: 6.38 ]
- 10 W Linear Amplifier
- This article describes a 10 watt linear amplifier that is capable of delivering over 15 watts into 50 ohms and uses cheap plastic transistors that are used in CB equipment. by Harry Lythall - SM0VPO
[ Hits: 11425 | Votes: 12 | Rating: 5.25 ]
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