operating systems

Antennas and Feedlines - Long article on antennad and feed lines

Portable Loop Antenna  ^pop - This loop it is small and light enough to carry while operating, it disassembles into small but rugged pieces that fit easily in a backpack or gym bag, and it can be tuned from 14 MHz to 30 MHz. This tunable magnetic loop antenna is my contribution to the well established art of amateur loop making. Can be tuned from 14 MHz to 30 MHz.

NAVAIDs and Real Property Requirements - The Impact of navigation aid systems on Air Force Real Property requirements

ON2BBP Joost - Website of ON2BBP, ham radio operator of Mortsel, Belgium, operating vlf, with some useful loop antenna projects.

Wholesale Solar - Solar panels, solar and wind home power systems, pre-wired power panels. Wholesale prices for everybody. Free solar design.

MixW RigExpert - USB INterface - MixW RigExpert integrates sound card with CAT, PTT, CW and FSK functions in a single box with USB connection to your desktop or notebook computer for operating phone, CW, and digital modes.

QRP LABS - The QRPLABS series of single band QRP CW tranceiver kits are high performance CW tranceivers with easy operating features, small size and light weight.

Operating the 28MHz (10m) Band - Excellent page on operating 10 meters band by G3XBM

Eham what is amateur radio - Amateurs/Hams? Operating modes , getting licensed, what ham radio operatos do

Weak Signal VHF by Tim Marek - K7XC - A complete guide to operating the weak signal modes on VHF/UHF/Microwaves. VHF Contesting honor role for the western states, rover, eme basics and vhf contesting.

KI8DU's CW Nets - Tips on cw operating mode

CT1EFL Web Site - Personal web pages with logs, information on learning cw and operating in CT-land.

Ham-Shack.com : Packet Radio Explained - Packet radio explained, a brief introduction to packet radio operating mode

Albuquerque Transmitter Hunting - An active group of Amateur Radio operators who locate hidden transmitters for fun and in times of need, such as determining the source of interference to local repeater systems or individuals who use the Amateur Radio bands illegally.

Southern California Repeater Lists - The most up-to-date listing of VHF/UHF amateur repeater stations operating in Southern California.

Cobra 148 GTL manual - GTL 148 Operating instruction PDF File

KC7IEU Guide to the Yaseu VX5r - Slides on operating the Yaesu VX5r by KC7IEU

Dino's Tower Service - Located in North Florida, specializing in tower installations, antenna assembly, and wire antennas. Experience includes a variety of antennas and towers from Rohn 25 up to Rohn 65 and rotating tower systems (KOXG).

M&P Audio - We are a new Amateur radio dealer. We carry products from Alinco, Hustler, Ranger, Antenex, Heil Sound, LDG, Uniden, TE Systems, Coax, and Radio Accessories.

ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss

J Pole calculator  ^{updated  pop} - Enter the operating frequency and calculate dimensions of your jpole antenna

Morse test - If you're one of the many hams whose principal operating mode is SSB, then the easiest way to increase your enjoyment of the hobby is to use CW. If you disagree with that statement, then there's a good chance, if you're honest with yourself, that the reason is because you have never been good enough at Morse to make using it an enjoyable experience

SIGINT Systems - SIGINT Systems. Provides the Harvester database system, a professional SIGINT Collection toolkit for radio enthusiasts.

Receive only processing equipment - One of our most popular products, receiving preamplifiers are used for achieving top signal band performance in competition operating, low noise longwave reception, repeater applications into the UHF region, or lab use

Cellular Phone Interference - Cellular Phone Interference and 800 MHz Public Safety Radio Systems: An Unforeseen and Dangerous Problem