current feed

Crossed Field Antenna - The Crossed Field Antenna (CFA) is one of the applications of Correction of Maxwell's Equations which was used over 150 years ago which was proved these days that the Magnetic Field Source is only the Displacement Current not the Conduction Current . These Corrections was made by an Egyptian Doctor Engineer Fathi Kabbary , who reached the New Correct Theory which shows that the height and efficiency of the antenna doesn't depend on the wavelength

EH antenna power lost considerations - Out of Balance Current or Longitudinal Mode Current in the Coaxial Cable causes radiation from the coax. But how large a proportion of the total power is radiated or lost from this Current?

EH antennas and CFA antenna - Many antennas function because of common mode currents, rather than working in spite of them. Two popular examples are CFA and EH antennas. Another recent example, appearing in Antennex's compact antenna articles, is a thick stub "vertical" with no counterpoise.

The G5RV Antenna System Re-Visited - The original G5RV antenna system consists of a center-fed horizontal 102' wire plus a 34' length of open-wire 525-Ohm feeder. Louis Varney, the antenna system's developer, intended two other features. Learn more at Cebik website

Low reactance multiband center feed wires - An antenna system is more easily interfaced to a radio when the input reactance at the feedline terminals is low or close to series resonance

OH7SV Matti Hohtola Ham Projects  ^pop - The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO, 50 ohm to 200 ohm HF wide band transformers, Wilkinson splitter for RX measurements, Windom baluns 2001/2004, Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver

W5JI Boatanchor Haven - Dedicated to the Care and Feeding of BoatAnchors, includes some Drake catalogs, and 1968 Collins Mechanical filter catalog pages

RC.N Home of Radio Contesting - Interactive home for radio contesters. Includes scores database, access to contester chat, forums, real-time posting and near-real-time news feed.

Boyer Valley Amateur Radio Club - Boyer Valley Amateur Radio Club (BVARC) was started in 1993 with 5 members. We currently have 40-45 members. The Boyer Valley Amateur Radio Club is a "Not for Profit Association of Amateur Radio Operators" based in Harrison county, Iowa.

Boulder County, Colorado Sheriffs Office Live Radio Feed - Using two Motorola MT500 handheld radios

Blackford County, Indiana Live Scanner feed - Blackford and surrounding counties Police, Fire, EMS, and EMA.

Las Vegas Metro Police scanner  ^{updated  pop} - Live feed from las vegas police web site. LVMPD, scanner may not be available.

Los Angeles Police Scanner  ^{updated  pop} - LAPD Los Angeles Police scanner. Listen to LAPD Live feed

KEPS Equipments for AO40 downlink - Complete receive system, downconverters, dishes, feeds and preamplifiers for AO40 satellite users

Current Optimal Frequency Charts - Optimal Working Frequencies (MHz) for High Frequency (HF) / Shortwave Radio. By region, updated monthy.

Amateur Radio Propagation RSS (XML) Live Feed - Live space weather and propagation data, in RSS (XML) format.

Hy-Gain Manuals - This is the manuals section for the Hy-Gain website. Currently, hy-gain is listing all of their manuals only in the Adobe Acrobat PDF format.

Put Your Scanner Online - how to - This tutorial explain how to put your radio feed streaming on the internet using MS windows media encoder.

W3 Links, Mohawk - National Railway Historical Society, providing current, historical, and technical information to all persons interested in rail transportation in the Capital District of New York State.

Newcastle Scanning - Newcastle Scan is the premier radio scanner site for Newcastle AUSTRALIA and a leader in live scanner feed, pictures and emergency recordings GRN INFO AND IDS frequencys

ScanNewBedford.com - Welcome to scannewbedford.com. This site was built for people who would like to hear a live broadcast of New Bedford Massachusetts public services. There are also a few frequencies from other local towns such as Dartmouth, and Fairhaven being broadcasted on our live audio feed. The web site is free for everyone to use and pass along to another friend. Thank you and enjoy the Scan New Bedford Live Scanner Audio Broadcast of New Bedford`s Police, Fire, and EMS.

Radio Vlaanderen International - Current program schedules, RealAudio feeds, and listening tips from Belgian Public Radio which broadcasts worldwide in Dutch, German, French and English.

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

Axis Spectrum Analyzer - Axis Spectrum Analyzer allows you to record audio along with sincronized 31 band spectrum analyzer readings from any audio source to be inputed into Macromedia Flash movies in an easy to integrate way. The software can also be used to display real-time audio with customized visuals on video devices such as projectors, tvs,etc.

K8TM Articles - This publications page lists articles on surface mount devices, amateur radio, soldering, shunts, and measuring large direct currents.