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An excel spreadsheet that in a really simple way checks how much to trim your antenna elements. Download the xls file and watch the presentation video include in this page

Chicago's oldest and best amateur radio club

KB22UT Article on how protecting ham radio station and in particular I/O Lines such as AC power, coax cable, control circuits, telephone line.

Ham radio shop in Hanstholm Denmark

An interesting article on choosing the right battery when operating in portable mode, considering charging time and modes, weight and size.

This app will give you a 16 tone DTMF keypad and the ability to generate custom DTMF sequences, and set the duration and tone to silence ratio. Includes the characters 1234567890*# and the menu tones ABCD. You may enter a custom sequence via the keypad, soft keyboard, or speech if your device already has speech-to-text capability. This is basically a touch tone telephone keypad, which may be of interest to amateur ham radio repeater operators

The HA8TKS VHF DXCluster is an essential online resource for amateur radio operators focusing on VHF and higher frequencies. This platform provides real-time information on DX spots, allowing users to track and engage in two-way radio communications effectively. The integrated map mash-up feature enhances the user experience by visually displaying the locations of DX stations, making it easier for operators to plan their contacts and optimize their antenna setups based on geographical data. In addition to the DXCluster functionality, the site offers various HAM tools, including a QRB calculator, which helps operators determine the distance to DX stations based on Maidenhead grid locators. The platform supports multiple modes of operation, including CW, SSB, RTTY, and digital modes like FT8 and JT65. With a user-friendly interface and comprehensive data, the HA8TKS VHF DXCluster is a valuable asset for both novice and experienced operators looking to enhance their DXing and contesting activities.

100% Ham radio web site.

Ham Radio cartoons of common situations

This group is being formed to support those radio enthusiasts that already have experience in SWL, Scanners, or Citizen Band/FRS radio that would like to know more about becoming a Ham.

With spectrum analysis of beacon signals, it's possible to see features relating to various propagation phenomonen.

Super Antenna Systems for HF - VHF - UHF Portable Stealth Mobile Base Backpack EmComm Ham Radio antennas

SFHRC - San Francisco Ham Radio Club, formed December 1,1998, to conduct activities to advance the general interest and welfare of Ham Radio in San Francisco and neighboring communities of the Bay Area.

A collection of calculators, contest schedules, references, databases and more for Palm OS by KB7AVT

San Antonio Texas area radio organizations, such as Ham Clubs, REACT Teams, etc.

DX Century Club First post-WWII Countries List

A club for hams who are also regulars on IRC (Internet Relay Chat).

Balanced feed with coaxial line by John F. Clemens W9ERN

PSKreporter displays the digital mode data of transmitting and receiving stations and displays them with additional information in selectable views.

A free marketplace for hams and radio enthusiasts to list extra receivers, transmitters, parts and associated items to be posted.

This group is dedicated to those who are interested in getting started in amateur radio or upgrading to a higher class license

The florida contest group, is the first amateur (ham) radio contest club, organized in the state of florida.

Amateur Radio Club in Edinburgh. Founded in 1949 with twice monthly meetings and a range of activites including talks, DF hunts, vists and contesting.

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

Theory and origins of W4RNL Asymmetrical Hatted Vertical Dipole AHVD for portable operations.

Manufacturers and Installers of Masts, Towers, Antenna systems, Trailer Masts, Lattice Masts and Bracketry. Radio, CCTV and lighting masts, tower Refurbishments, safety surveys, mast tower inspections, safe to climb certification

A comparison of the buddipole antenna versus a wire dipole done on 20 meters band

Cushcraft A3S performances with the A743 kit to add 30 and 40 meters

Monthly Amateur radio DX Peditions and Contest calendar at HamRadioWeb

Whether Hamradio software, Transceiver or Receiver, WiFi sticks as well as practical accessories. Bonito have everything around the topic Hamradio.

This is a group for CBers, Sidebanders, Amateurs and Freebanders. Items to be discussed are CB, Skip, Skeds, DX communications, SSB, export radios, Radio equipment, mods, ham radio, repairs, electronics, CW, PSK31, RTTY, digital, and different radio shops.

Piedmont NC ham radio and scanner information.

Italian amaterur radio equipment online store in Frosinone

iSpectrum is a free spectrum analyzer for MacOS that allows you to display live audio in a standard frequency plot, waterfall display or in a stereo oscilloscope view. Used by ham radio operators, audiofiles, musicians, and Sound Technicians.

Article on RTL SDR dongles to receive UHF VHF ham radio bands

Amateur radio windows fonts with slashed zero and Phi also listed some morse code fonts available to download

HobbyPCB.com provides quality products and boards for amateur radio including the popular HARDROCK 50 amplifier

Ham Radio Vertical HF multiband antennas manufacturers based in Spain

Get into Ham Radio

LinLogBook is an logbook for hamradio and it is based on an sql database. It can be widely configured by the user.

A collection of drawings of most popular wire antennas for hf ham radio bands

Ham radio, Mir contact samples in Real audio, packet and some links

A recognized organization of Murray State University providing programs and activities that promote interest in Amateur Radio within the campus and community.

Nightly Talk Around Net sparked many new ideals and has promoted Amateur Radio in our area with things like, ARES, Skywarn Classes, Field Day, VE testing, Internet and other events that bring our Hams together as one big family.

The RadioFrequency Program is a professional Software dedicated to all HAM, SWL and Radio Listeners. Freeware. Included is a Text-CSV dBase Converter. Connection to the ICOM R8500 Receiver. Special Scanning Feature. Special Search Feature x large dBase.

Commercial ham radio license exam preparation software that contains the latest officially released questions.

Introduction to Shortwave Antennas. Understanding Shortwave Radio Listening and Antenna Design and Construction

Amateur Radio 40m 20m 15m Half Wave Fan dipole antenna project with part list, pictures and drawing. Includes the option to expand the antenna to cover the 80 meters band

The Cuyahoga Amateur Radio Society (CARS) is a not-for-profit organization comprised of Amateur Radio (Ham Radio) operators dedicated to furthering the art of Ham Radio and to serving the public in times of disaster

Welcome to the relay repeater club. we are a 2 meter/vhf amateur (ham) radio club in arcadia, california, operating on the ka6ncr repeater. we are looking for new members.