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A complete documentation with pictures and design of a deltaloop antenna and 1:2.5 balun

The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB

An AO-10 antenna by K5OE, this design is optimized for 436.8 mHz with a 50 Ohm feed

The Clemens match is easy to make and reliable, and is preferable to a single Gamma match as it is balanced

A homebrew project for a 2 meter 4 element yagi beam antenna by 2E0HTS

A stacked Jpole antenna plan by Gary - KGØZP

Theory and operantions, G5RV construction tips by Keith, KE2DI

Ham Radio applications with the Arduino micro-controller presentation

Kv5r Understanding NVIS Antennas and Propagation. This article is not intended to be a complete primer on HF radio propagation or emergency communications.

Ham University is the premier Windows program for helping you pass your FCC Exams.

WinPSKse is a logical outgrowth of WinPSK as designed and written by AE4JY. The look and feel is intentionally similar, but some significant changes have been made, not the least of which is the ability toreceive two PSK31 signals simultaneously.

AF4AR/W6ARQ KC5BBP modified square loop antenna

These omnidirectional antennas offer Horizontal polarization, and about 2.1 dbd of gain. They are much quieter than a dipole or a vertical, have a broader bandwidth and will usually out perform a dipole antenna.

The HamStationUltra package for Windows is designed specifically for the Kenwood TS-2000, Yaesu FT-2000 and Ten-Tec Jupiter/Pegasus transceivers.

If you have ever tried transmitting on HF from a tall block of apartments, where it's just not possible to erect a substantial aerial system, then this article is for you

Tune and listen an ICOM IC761 or a IC PCR-1500 made available by DL3BAA from SW Germany

A large collection of amateur radio maps, including CQ and ITU Zones, a complete set of ham radio Prefix Maps, grid locators and time zones map. An excellent ham radio mapping service.

A 3 element yagi beam for 40 meters band

Rhombic Antenna dimensions for HF and VHF bands by N6JSX

Mods and manuals for the FT-2000

Large on-line ham radio classified ad system, free for all users.

A Quad Fractal Antenna for 20 meters band by F3DD

This site is dedicated to mobile amateur radio operators, old and new alike. Whether you are into HF, or VHF operation, I trust the information presented will increase your enjoyment of our great hobby. With safety as a byword, there are articles on amplifiers, antennas, bonding, impedance matching, installing hardware, mobile equipment, noise and RFI abatement, wiring, and much more. I do my best to keep these articles up to date, and easy to follow.

Professional tower supplies and specialty products for amateurs and industry.

A 1:1 current balun by N5ESE

The IK-STIC 2 is a vertical, all band, antenna that is over 25 feet tall yet weighs under 5 pounds. Based on a telescopic pipe or a fiberglass fishing pole, using a tuner it can easily cover the amateur radio HF bands from 40 - 10 Meters

The Dayton Hamvention is the world's largest amateur radio gathering.

Article by N6JSX on homebrewing quad antennas for VHF and UHF.

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.

Input the desired resonant frequency and it will calculate lenght in inches feet and meters

The programming cable is intended to be used with a computer RS-232 port for programming radios and other devices.

This antenna article is geared towards new Hams and antenna builders looking for a very inexpensive 6 band antenna that can be efficiently fed with 50 ohm coax without a tuner by N4JTE

The webs premier site for custom ham maps (azimuthal equidistant projection maps) and great circle bearing/distant charts for the radio amateur. Customized azimuthal equidistant projection maps and tables.

Radio Incident Command Kit project is described in this article loaded with many pictures and go-kit composition.

W5ALT Indoor Vertical Antenna is a base loaded vertical antenna that can be tuned on almost all HF bands by adjusting a big coil. Operating a ham radio station from an apartment in Maracaibo, Venezuela, the author demonstrates effective communication with over 100 countries using a custom-built indoor vertical antenna. Addressing common misconceptions, the design uses a balanced approach with radials and a base-loaded vertical element made from affordable materials. The antenna fits discreetly indoors, covers 6 to 40 meter bands, and achieves acceptable SWR with an MFJ tuner. Despite limited space and typical apartment challenges, the setup enables reliable DX contacts, confirmed by numerous QSL cards, proving indoor antennas can perform well in constrained environments.

8 and 4 elemets yagi beam antenna by N6CA

Ubuntu software packages in "karmic", subsection hamradio

An attic indoor antenna successfully implemented by N9RET by using two runs of 2-conductor wire

An article comparing the Kenwood TS 590S to the Elecraft K3

A modular CAT interface for Yaesu VX-7R by G4TIC, tested with icom and ten-tec HF Rigs too, pdf file

Keep track of much more than the time with this Wi-Fi enabled device. HamClock is a desk clock that could show accurate time, geography, time zone, solar activ- ity, sunrise and sunset times, Maiden- head locators, beam heading,

Get KB1OIQ - Andy's Ham Radio Linux CD at SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

The webs premier Ham Radio discussion forums

CW transceiver kits, QRP, frequency counters, QRP wattmeters, Dummy loads and QRP Parts

SolarHam is a website all about the Sun and how it affects Earth. This site is routinely updated with breaking news, sometimes hours before other Space News websites. You can trust SolarHam.com for the most up to date and accurate solar information on the net. SolarHam is a trusted and easy-to-use website for anyone interested in solar activity and space weather. It gives daily updates on <b>solar flares</b>, sunspots, geomagnetic storms, and radio blackouts. The site uses data from NOAA and NASA to show what is happening on the Sun and how it may affect radio signals on Earth. Charts and images are clear, and reports are updated often. Many amateur radio operators use SolarHam.net to check band conditions and aurora forecasts before operating. The site is fast, well organized, and focused on the needs of the radio community. Whether you are a beginner or an experienced ham, SolarHam.net is a helpful tool for understanding space weather and its impact on radio communications.

Frequency Filer is database program designed for people who use a great many different radio frequencies. It is primarily intended for amateur radio operators, short-wave listening enthusiasts and scanner users. The program makes it easy to keep all of your important frequency information in one place, displayed in a logical format to facilitate easy retrieval. Frequency information can be displayed as a list and can be viewed on a world globe. Other features include easy data backup and custom field names. Included is database import utility that can be used as a general file conversion utility. The globe display can also be used as general geographic aid for countries, cities, states, rivers, and lakes. You may even find your home town. Windows Shareware

A freeware dos antenna design program, dedicated to yagi antenna design by K4VX

Comparison chart of most popular VHF UHF amateur radio transceivers

A site devoted to Amateur Radio Homebrewing, CW-decoder, CW QRP Transceiver for the 40 & 20 meters band, CMOS reader

These are 200 Morse Code QSO`s which might typically be heard on the HF bands.