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Antennas : 6M
A 6m portable 4 element quad
- This antenna is based on a design for a portable 2 element 6m Quad by VE7CA, which is featured in the 19th Edition of the ARRL Antenna Handbook
Detuning Towers
- The goal of detuning is not to avoid resonance, but rather to minimize re-radiation and/or current in the interfering structure.
W8ZR High-Power Antenna Tuner
- This homebrew legal-limit antenna tuner is based on the famous "Ultimate Transmatch" introduced by the late Lew McCoy, W1ICP. The Ultimate Transmatch was described in the "Beginner and Novice" section of the July 1970 QST (Page 24).
A low cost fishing pole vertical antenna
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- This antenna is based on a 10 Metre long fibreglass fishing pole, by G4AON
Helical Antenna for 2.4 GHz and 802.11b
- The following page details construction of a Helical antenna based on the superb design by Jason Hecker.
A Quadruple Helix for AO-40
- A homebrew project of a quadruple helix antenna system based on G3RUH 16 turn helix antenna for 2.4 GHz.
Foyle & District ARC
- MN0AKU Foyle & District Amateur Radio Club.
Based in Northern Ireland , approximately 7km South of Londonderry City
Radio Amateur Educational Society
- Provide instruction to obtain certification, a forum for technical exchange and advancement of amateur radio, a mentor program to actively encourage our students in passing the amateur exam. Based in canada
DX Portal
- Google based ham radio search engine.
Only trusted, useful web sites for amateur radio. The DXPORTAL search engine built using Google's core search technology, which prioritizes search results based on amateur radio websites.
Penninger Radio
- The home of the TIPPER a portable base system & the
CLAMP-IT series of mast clamps & the SNAP TUBES series of snap together mast tubes, Snap Tube Joiner, Guy Slip Ring.
Bozak Antennas
- VHF, UHF, FM, Base & Mobile antennas
Platinum Technologies
- Manufacture sector, omni directional, panel and parabolic antennas for professional base and client stations. 900 Mhz, 2.4 Ghz 3.5 Ghz and 5 Ghz antennas
A & A Engineering
- Smart Battery Chargers, WeatherFAX, Color SSTV,GPS-Based Frequency Standard, Power/SWR Meter,
, Digital Frequency Synthesizers
KJ6Y's Communications service co
- Antennas and Towers for Amateur Radio
Specializing in installation and maintenance of Tri-Ex and US Towers
Rotating Tower Systems
- Using our components you can build a rotating tower with greater capability than 3-4 static towers. A rotating tower allows common rotation of HF stacked arrays, VHF and UHF arrays, and antennas mounted at optimum heights. Component design also allows tower shunt loading and end support for wire antennas
Connecting the Yaesu VL-1000 (quadra) to the FT-1000MP/MkV
- based on an FT-1000MP Reflector discussion with Bill Heinzinger, W9OL, 15/16 November 2002
Yaesu FT-897 picture
- Rigpix database large picture of the Yaesu FT-897
Reimesch
- Ham radio dealer based in germany offer RF power amplifiers, from Alpin and SPE, antennas, RFI suppression products and GSM GPRS products
Welcome to VIS Amateur Supply
- Vis amateur supply, largest independent dealer for several major brands of amateur radio accessories, and publisher of 'vis study cards' and the 'sam amateur radio callsign database'. Coffeeville, AL USA
RadioLabs - Radio, Wireless and Beyond
- Specialize in engineering, design and repair of all rf equipment. Dealer for two way radios, scanners, shortwave radios, wi-fi antennas, wifi amplifiers. Based in Fortuna, California.
SignalGen
- SignalGen is a free (GPL) Linux (Xwindows GUI-based) utility that generates relatively low frequency signals with the use of a PC sound card. It is an entirely suitable replacement for a hardware signal generator if one doesn't require signals of a frequency higher than about 50 KHz. SignalGen creates any frequency between a fraction of one Hertz and an upper limit determined by your sound card's capabilities.
FFT Explorer
- A free (GPL) Linux (Xwindows GUI-based) utility that performs spectral analysis on real-time data from a sound card or other source, and can analyze the spectra of various sound file types. It can also accept data from many kinds of applications in plain-text form by way of the "named pipe" feature of Linux
LiHaLo : LInux HAm LOgbook
- Freeware ham-radio logbook written in PHP, and based on Apache and MySQL, even if developed undex linux has been tested with windows and macosx by on4axv and on5dqz
PICBeacon
- CW/QRSS beacon, based on a microcontroller PIC16F84, by Microchip, with only few other components. Schematic and component list available
A 6M Transverter
- Build a transverter based on a 6M receive converter. A 32MHz TTL oscillator is used as the local oscillator for both transmitting and receiving. RX/TX switching is handled by three SPDT relays.
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