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Amateur Radio Guide to Digital Mobile Radio by W2XAB

Recorded QSO by italian amateur radio station in MP3 format

Falmouth amateur radio association of cape cod, massachusetts

Hamlib is a library aid for software developers wishing to incorporate control of amateur radio hardware into their programs. Hamlib will allow ham radio software authors to concentrate on the user interface and the basic function of the program rather than radio control.

This amateur radio web site explains how to use the AGWPE utility program to send and receive packet (a digital data mode) using the sound card of your PC instead of a traditional TNC (Terminal Node Controller), a radio modem.

Los Angeles County Disaster Communications Service a public service organization using Amateur Radio

List of european vhf uhf beacons by G4URH

Understanding Amateur Radio NVIS Antennas and Propagation

Amateur Club using VoIP from Del City, Oklahoma Del City Radio Club - W5DEL

SCARA is active in various events throughout the year. Helping as a public service with communications at various events has been a strong point for our club

Club in Stoke On Trent, England specialising in training for all classes of Amateur licence in the UK.

This page documents Amateur Radio data digipeated by the International Space Station

A site dedicated for the AM Radio Amateur and vintage radio. Home of the AM Press/Exchange, The AM Forum (the largest BBS of it's kind),and The AM Classifieds, Photos, Audio, and technical information. Audio and Video chat rooms.

Summits on the Air is an exciting new award scheme for radio amateurs which encourages operation in mountainous and wilderness areas. The sceme is designed to grow into an international awards.

In celebration of CQ magazine's 60th anniversary in 2005, the CQ staff came up with 60 great things about ham radio, written up by CQ Editor Rich Moseson, W2VU

CARA's primary focus is serving Howard County, Maryland and surrounding communities through Amateur Radio.

An amateur radio contest log sheet printable in A4 format, useful for portable operations, free to download PDF File.

This article compares two commercial vertical antennas for the 4-meter amateur radio band: the Watson WVB-70 half-wave and the Sirio CX4-71. The Watson measures 2.03m in length, costs around £40, and exhibited adequate performance but required additional waterproofing after rain affected its VSWR readings. The longer Sirio CX4-71 (3.02m) performed noticeably better, delivering signals approximately 2 S-points stronger than the Watson. The Sirio demonstrated high build quality, a stable 1.2-1.4:1 VSWR, and weather resilience, though minor VSWR fluctuations were observed during rain and frost. Both antennas are half-wave designs requiring no ground plane radials.

Baluns are still a mystery to some radio amateurs and the only way to understand them is to learn what they are and how to use them.

Amateur radio association of the southern tier - with amateur radio emergency services

Servering the amateur radio community with a consolidated news center.

French amateur radio dealer for kenwood, alinco, cubex, acom, comet, inrad, eton,f9ft, tennadyne, tigertronix

Converting HP ProLiant Power Supplies for Amateur Radio Use

Located in the Owen Sound,Ontario area. Meetings are the 4th Tuesday of the month except for summer.

Special purpose amateur radio club devoted to the pursuit of operating and technical excellence. This site serves as a library of amateur radio contest and DX information.

The Ak-Sar-Ben Amateur Radio Club, Inc. of Omaha, Nebraska is a general interest amateur radio club.

Amateur Radio operation and weak signal detection pages by AF9Y

NJDXA North Jersey DX Association is a platform maintained by Urb LeJeune, W2DEC, providing information about upcoming meetings, VE testing sessions, and the operation of the W2 QSL Bureau. The site offers resources for amateur radio operators in the North Jersey area to connect, share experiences, and learn from each other. It serves as a hub for DXing enthusiasts to stay updated on events and activities related to amateur radio. The intended audience includes hams in the North Jersey region looking to participate in club meetings, VE testing, and QSL bureau operations.

Ham radio equipment eBay prices, adjusted for trends, filtered for accessories, leaving only condition and auction terms to affect the final price. Also direct links to auctions, searches and recommended sites for research, plus amateur radio station rigs, projects and antenna farm.

This document details the design and construction of the PA70H, a 50-watt RF amplifier for the 70MHz (4-meter) amateur radio band. Built around the Mitsubishi RD70HVF1 MOSFET transistor, the amplifier delivers 45-55W output with 3-5W input power while operating on 13.8V DC at approximately 7-8A. The PCB design incorporates multiple protection circuits including overcurrent, SWR, and temperature control. The amplifier features various control modes including GND PTT, +13.8V PTT, and RF VOX. Two versions are available: PA70HLI (requiring 100mW input with additional driver) and PA70H (for 3-5W input). The comprehensive documentation includes circuit diagrams, assembly instructions, and performance data showing successful operation from both 100mW and 3.5W input sources.

This project was published in the May 2005 issue of the Australian magazine Amateur Radio, and has been designed using parts which are very readily available

Earn your Technician or General Amateur Radio License in a one day course.

Serving the Jersey Shore for over 30 years.

This article by Seabury Lyon, AA1MY describe how homebrew kits for amateur radio pourposes, in order to support wire antennas

A Massachusetts Non-Profit 501-C(3) corporation of amateur radio operators chartered in 1978 covering the Connecticut River Valley in Western Massachusetts and Northern Connecticut.

Club in Portage County. We have fun with ham radio. Meet at Mike's place Rts 43/261 in Kent - 2nd Monday 7pm. All welcome!

The information in this article has come from many amateur sources, the most notable was from WA6TEY (sk 1985) Ray Frost, who was a pioneer of VHF Quad designs and one of the best Southern California Transmitter Hunters. Ray built hundreds two meter quads in single and paired configurations as well as his famous mobile radio direction finding quad.

Special services club offering monthly meetings, training classes and general advancement of ham radio in the Northwest.

manufacture and sell unique, high quality, amateur radio products like HF and VHF antenna mounts

Heathkit Amateur Radio Repair, parts, and manuals. Amateur radio equipment sales and service.

Eastern Alabama's dealer of amateur radios and antennas, CB radios and antennas, scanners, radar detectors, power supplies, and other related accessories.

Radio Amateurs of Ankara, Turkey. English, Turkish, homepages of HAM's.

Club activities, news and newsletter Ham Chatter Online features a member each month. Field Day pictures, etc. Home of VOA transmitter sites. Club calls, W4AMC & W1VOA Greenville, NC

This site is dedicated to mobile amateur radio operators, old and new alike. Whether you are into HF, or VHF operation, the information presented will increase your enjoyment of our great hobby.

Manufacturer of custom belt buckles,coffee mugs,t-shirts,sweat shirts,maine gifts,name tags,call tags and awards for police, fire, sheriff, ham radio and amateur radio clubs

Basic information compiled and copied from NOAA SEC explaining and showing current solar weather conditions affecting amateur radio.

W5AC is the Texas A&M University Amateur or "Ham" Radio Club. This club, founded in 1912, is one of the oldest university radio clubs in existence.

The European PSK Club, or EPC for short, is an informal club of amateur radio operators dedicated to maintaining high levels of amateur radio communications on PSK modes. Its purpose is to promote activity and good operating practice on the PSK modes on all amateur bands

Amateur Radio HF Cubical Quad and Delta Loop antennas manufacturer based in Spain

Amateur radio good operating practices by KG9OM