Antennas : Baluns
- High impedance baluns
- Introduction with some background on balun types
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- Build a 4:1 Guanella Balun
- Step-By-Step Construction of a 4:1 Current-Type Guanella Balun by W1CG
[ Hits: 10175 | Votes: 19 | Rating: 6.24 ]
- Common Mode Choke Theory
- A common mode choke may be used to reduce a type of electrical noise known as common mode noise. Electro-magnetic interference (E.M.I.) in the circuit's environment is one source of electrical noise.
[ Hits: 1576 | Votes: 4 | Rating: 1.00 ]
- An End Fed Half Wave Antenna
- This end fed type of antenna was marketted in the UK and is a useful system for the portable set-up. Being a half wave, no radials or counterpose wires are needed.
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- A Multi-type "one-box" Antenna Tuner
- This antenna tuner is a multi-type matching system in the same box, which includes L - Pi and T networks.
[ Hits: 7139 | Votes: 3 | Rating: 9.67 ]
- DirectionalWaveguide - Seattle Wireless
- Waveguide antenna is a type of DirectionalAntenna and is a modified waveguide. A waveguide is simply a tube, either rectangular or cylindrical in cross-section, that will carry a microwave radio signal with very low signal loss
[ Hits: 4741 | Votes: 3 | Rating: 6.00 ]
- PringlesCantenna - Seattle Wireless
- The PringlesCantenna is an ultracheap Yagi-type directional antenna that can be built for under $10. The original Pringles Yagi was designed by Andrew Clap.
[ Hits: 9155 | Votes: 4 | Rating: 6.00 ]
- Wlan antenna Waveguide type
- This antenna is constucted only of a cylindrical can and a N connector with centre tap lengthened
[ Hits: 5354 | Votes: 9 | Rating: 5.66 ]
- Kings Electronics
- Manufacture a wide array of RF interconnect products for operation from 0 to 18 GHz, ranging in size from subminiature connectors to large, high voltage types
[ Hits: 320 | Votes: 2 | Rating: 5.50 ]
- Supply high quality accessories for your ham shack, including Band Decoders, various types of Antenna Switches, Antenna Stacking devices, special devices designed for the SO2R operator, USB Interfaces, Digital Mode Interfaces, Keyers and many others
[ Hits: 1826 | Votes: 2 | Rating: 10.00 ]
- Genesis Lamp
- Sell all types of obstruction lighting. Lighting for your ham radio antenna tower.
Genesis Lamp stocks a wide variety of replacement bulbs and specialty replacement light bulbs including: airport lighting and airport light bulbs, incandescent light bulbs and more
[ Hits: 624 | Votes: 1 | Rating: 10.00 ]
- Printable SWL QSL log template
- Free printable template for QSL log reports. Mainly for shortwave listening. Pdf file by Mike Chambers
[ Hits: 2165 | Votes: 18 | Rating: 6.28 ]
- NOAA Space Weather Scales
- The NOAA Space Weather Scales were introduced as a way to communicate to the general public the current and future space weather conditions and their possible effects on people and systems.
The scales describe the environmental disturbances for three event types: geomagnetic storms, solar radiation storms, and radio blackouts.
[ Hits: 957 | Votes: 2 | Rating: 10.00 ]
- Contest Log Converter
- Contest Log Converter it's a Windows program that allow to convert data file between the most used Contest Log. The program allow you to convert 12 different type of contest, selected from the common contest managed from the Contest Log program. The follow program ,CT by K1EA, TR by N6TR and NA by K8CC are full supported with the conversion of the most famous world contests.
[ Hits: 5599 | Votes: 9 | Rating: 6.00 ]
- Black Cat CW Keyer
- Black Cat CW Keyer for Macintosh lets you send morse code from your computer. You can type out the text to be sent (immediately or buffered) as well as create and send from one key
[ Hits: 3028 | Votes: 5 | Rating: 6.40 ]
- LZ2US Amplifiers
- LZ2US offers 3 types amplifiers for the serious VHF/UHF amateur. These amplifiers are very robust and in use by contest groups and EME stations all over the world. Every amplifier is custom made.
[ Hits: 1759 | Votes: 2 | Rating: 10.00 ]
- How make N-Type Connectors
- How to make easily your N-type connector, pictures and procedure, step by step
[ Hits: 2573 | Votes: 13 | Rating: 6.62 ]
- A Homebrew SSB Transceiver for 60 Meters
- Description of the design and building of a homebrew phasing-type ssb transceiver for the 60 meter band by Paul Alexander WB9IPA
[ Hits: 1006 | Votes: 4 | Rating: 8.75 ]
- Strange CW keys
- Very strange morse keyers, like Onion chopper CW key, Handshake CW key, Chopsticks CW key, Typewriter CW keyboard, Refrigerator CW key by OH6DC
[ Hits: 2217 | Votes: 4 | Rating: 10.00 ]
- Vacuum Tube Software
- The VTDATA software package is a complete vacuum tube manual on your computer. It has all the information you'd expect in a tube manual. VTDATA's database also includes vacuum tubes of historical interest, such as the early "two digit" types (45, 80, etc.) and hi-fi audio types.
[ Hits: 9363 | Votes: 18 | Rating: 3.17 ]
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