book306 links - and 3 categories
Antennas : 160M
- The TeslaVert 160 meter antenna
- A compact antenna contender for 160 meters.
[ Hits: 3185 | Votes: 4 | Rating: 5.50 ]
- ZR6KMD 2M Beam Antenna
- This design was adapted from an article in the ARRL Handbook and built with simplicity and
duplicity in mind. This antenna is a vast improvement over a standard dipole with a forward gain of around 8db with a front to back ratio of 10db.
[ Hits: 2050 | Votes: 1 | Rating: 2.00 ]
- Directional arrays
- About collinear array antennas
[ Hits: 4123 | Votes: 0 | Rating: 0.00 ]
- K7MEM - Folded Dipole Design
- Design your own folded dipole antenna
[ Hits: 4671 | Votes: 17 | Rating: 7.06 ]
- K7MEM Center-Fed Half-Wave Dipole ( 3-30 MHz)
- A Center-Fed Half-Wave Dipole is probably the simplest of antennas to construct and use. It is usually suspended between two supports, from it's end insulators, and has the feedline hanging from the center.
[ Hits: 2559 | Votes: 4 | Rating: 5.50 ]
- K7MEM - Inverted V Antenna Design
- Inverted V antennas is a dipole with the center raised on a mast and the endpoints near ground. Calculate dimensions online.
[ Hits: 3419 | Votes: 7 | Rating: 6.14 ]
- Helical Feed Antennas
- Helical antennas have long been popular in applications from VHF to
microwaves requiring circular polarization, since they have the unique
property of naturally providing circularly polarized radiation. Paul Wade W1GHZ
[ Hits: 1598 | Votes: 2 | Rating: 3.00 ]
- Helical/helix antenna 2.4 GHz HOWTO
- Helical/helix antenna cookbook recipe for 2.4 GHz wavelans and/or WiFi applications
[ Hits: 6739 | Votes: 18 | Rating: 6.00 ]
- Log Periodic Antenna Design
- calculates the dimensions and spacings of the elements needed to build a log periodic antenna, given tao, sigma and the lower and upper cutoff frequencies.
[ Hits: 31817 | Votes: 260 | Rating: 6.16 ]
- Rhombic antennas
- Article on rhombic antennas, radiaton patterns, disvantages, and more info on rhombic aerials
[ Hits: 2704 | Votes: 3 | Rating: 7.00 ]
- The Notebook Antenna
- the multiband Notebook Antenna, so called because the entire antenna will fit easily inside a 1" thick 3-ring binder
[ Hits: 4611 | Votes: 5 | Rating: 6.20 ]
- Antique Radio Page
- The antique radio page is the best place to start if you want to learn about antique radios. this award-winning site features a huge image gallery with hundreds of antique radios (tube, transistor, and crystal sets), useful articles, reviews of out-of-print radio reference books, and the amazing arp directory where you can search and find antique radios on the web!
[ Hits: 7971 | Votes: 21 | Rating: 3.41 ]
- The Farmer's Old Radio Notebook
- A collection of vintage radios, speakers, and related items.
[ Hits: 397 | Votes: 1 | Rating: 10.00 ]
- Logbook of the World - LoTW
- ARRL's Logbook of the World (LoTW) system is a repository of log records submitted by users from around the world. When both participants in a QSO submit matching QSO records to LoTW, the result is a QSL that can be used for ARRL award credit.
[ Hits: 1144 | Votes: 6 | Rating: 6.33 ]
- Lone Star DX Association DX Notebook
- Dedicated to the fine art of DXing, The DX Notebook offers a comprehensive collection of news and other items of interest to the DX community.
[ Hits: 362 | Votes: 0 | Rating: 0.00 ]
- Milestone Technologies
- Morse Keys, Keyers, Keyboards, and Keyer Paddles, electronic parts, QRP transceivers, books and tools
[ Hits: 4866 | Votes: 1 | Rating: 10.00 ]
- Mini logbook
- A neat free little tool to log your contacts. It automatically looks up previous contacts with recent call. Select text in MRP40 Rx- window. Auto insert that text into MiniLog via double click. By Polar Electric
[ Hits: 1324 | Votes: 2 | Rating: 5.00 ]
- RUMlog is a fully featured general ham radio logbook program, with contest logging capability and QSL handling/printing tool for MacOSX.
RUMlog is free to download and can interface with most popular Icom Elecraft Yaesu Kenwood Transceiver, and CW keyers. Offer mapping, Dx cluster, check, import export, and many functions commonly available on most popular logbook programs.
[ Hits: 1051 | Votes: 1 | Rating: 10.00 ]
- Alphabets - Phonetic Alphabet and Morse Code eBook
- Palm OS reference tools
[ Hits: 510 | Votes: 3 | Rating: 7.00 ]
- Toroid cross reference
- Construction articles in magazines and books often use part numbers of firms no longer in business or whose parts are hard to find. Here you can locate the palomar toroids equivalent
[ Hits: 1083 | Votes: 8 | Rating: 2.63 ]
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