open wire feed line

WW2Y/K2WI Beverage design - Ideas for enhanced beverage antenna performance, Single wire beverage improvements and arrays of two beverages

Online helix antenna calculator - PHP Helical antenna calculator, need SVG viewer

Cheap antenna to make from 160m - 6m  ^pop - The antenna is nothing more than a simple 2.4 metre square loop drawing pinned to the internal brick wall of the spare bedroom. Yep, thats right, the inside wall of the spare bedroom - ideal for flat dwellers, hotel rooms or whinging neighbours, The loop has a simple switched inductance at the top of the square loop and uses a simple coaxial stub to tune the antenna. An additional variable capacitor placed across the feedpoint can be used to fine tune the resonance of the antenna, by Andy G0FTD

Interference Cancelling System - The use of interference signal cancellation has been around for some time. The idea is to use an auxiliary antenna almost any random length of wire in addition to the main receiving antenna

Indoor Random Wire versus Indoor Magnetic Loop - Comparison of performance between an indoor random wire versus a magnetic loop using psk31

LZ open contest - Rules and Results of the International LZ Open Contest.

YI9PSE On-line Log - YI9PSE online log - IRAQ 2010 DXpedition web site

Ak-Sar-Ben Amateur Radio Club - The Ak-Sar-Ben Amateur Radio Club, Inc. of Omaha, Nebraska is a general interest amateur radio club. With nearly 300 members there is someone involved in every aspect of amateur radio. We make a special effort to participate in providing communications support for public service events, Field Day, and teaching classes for those who wish to obtain an amateur(ham) radio license or upgrade their license privileges. The club sponsors regularly scheduled Volunteer Examiners as part of the ARRL VEC program. The club also hosts a flea market in the fall and hosts an all area picnic in the spring. There is evidence of the club as far back as the 1920s and has a long history of community service and promotion of ham radio in the city, county and state. The current club was started in 1945 the club has been affiliated with the ARRL since that time The club has hosted the Midwest Division Convention in 1985 and in 1994. Tthe club has participated in Kidz Explore in Omaha which is attended by over 77,000 people. The AARC is also involved with the radio merit badge program for the Boy Scouts with several members being registered merit badge councilors. The club operates two repeaters under their KØUSA callsign, 146.940 and 224.940. Both repeaters are open for all licensed amateurs to use. The 146.940 repeater is home to Midlands ARES and Douglas County ARES nets.

RF Cafe - Amateur Radio Links - RF Cafe is a unique portal of RF, microwave, wireless, and other engineering resources. Vast collection of equations, references and conversions for electrical, mechanical, physical, and mathematical fields.

The reflected W beam - Hexagonal wire beams for all hf bands, technical resource, EZNEC files, tools for antenna modeling and documentation. You can also order parts to build your own antenna.

Ham Radio Audio and Resources - EchoLink and IRLP Internet Radio Linking Project Node's, Hurricane Watch Audio Feed's and Info, Live Scanner/Other Feed's from the USA, Local Ham Frequencies, Online Receiver's, Shoutcast Live Audio Feed's from the USA, Southern California Frequencies and more

How to build a simple wireless telegraph set - The simplest wireless telegraph set consists of a means of generating and controlling a spark which sends out radio waves into the air, and a receiver or detector to detect the radio waves.

Eufaula police scanner - Live Streaming Scanner Feed for Eufaula, Alabama's Police & Fire Depts. and the Barbour Co. Sheriff Dept.

Batteries and gadgets - Your source for weather radios, communication headsets, 14 channel radios, M&M groovy radios, smithsonian crystal radio and weather station kits, line restrictors, antennas,ham radio accessories, and battery products.

eBay Store - ON Antennas J Pole - Buy ham amateur radio, antenna, j pole items from ON ANTENNAS J POLE eBay Store. We sell ham amateur radio, stealth wire, 2 meter, vertical items on eBay.

TestParts Sales Company - TestParts.com carries RF Microwave WiFi Coaxial Attenuators Coax Adapters Dummy Loads Waveguide Oscilloscope Probe Leads DMM Manuals RF Switch Relay SurplusSales Bristol Spline Pocket Toner Tubes Digicon Heliax RF Parts Oldaker Test Leads Silver PL-259s

Deutsche Welle - Germany's International Broadcasting Station with links to numerous pages in multiple languages containing program schedules, and live audio feeds.

Radio Australia ABC - Online in RealAudio and Windows Media formats, with multiple language shortwave schedules, and instructions for receiving Australian satellite radio and TV (AusTV).

Voice of Tibet - Voice of the Voiceless - Radio VOT daily broadcasts a 30 minute news service in Tibetan and a 15 minute news service in Mandarin Chinese.

Oromia Online - RSQBO - News and general information about Oromia and the Oromo people Ethiopia

Total Recorder - Captures any audio from the Internet, records audio from CD, microphone, line-in, converts any sound formats to WAVE and MP3. Total Recorder records streaming audio, Mic input, Line-in input as well as CDs and DVDs, allows users to schedule any number of future recordings

Dimension 4 - Freeware software that synchronize your PC's clock. Dimension 4 monitor your Internet connection and automatically adjust your PC's clock when you're online at an interval you specify.

Why grounding - Overvoltage protection, Voltage stabilization, Grounding in wiring, Ground wire resistance

Antenna Noise and Signal Cancelling at LF - By using the signals from two antennas, controlling their relative amplitudes and controlling the phase of one of them, unwanted signal or unwanted noise can be phased out. Circuitry is described which uses the signal from a wire antenna to provide selective cancelling against the signal output from an LF loop antenna.

Rig to Soundcard Interface by M0UKD - Practival project that contains two isolation transformers, one for AF from the tranciever to the line in on a soundcard, and one from the audio out of the soundcard back to the mic / data input of the radio. Both of which are variable inside the interface via two preset resistors.