end feed zep

Feeder Radiation - Connecting centre fed antennas, dipoles, yagis, rhombics, loops to coaxial cable, unless care is taken, it is not difficult to end up with feeder radiation resulting in power loss and the radiation characteristics changes

Noise Reduction on 40m Priority listing - DF9CY implementation of W1HIS suggestion of inserting a common mode choke into a 40m antennas feed-line.

Open-wire Feedline - Homebrew Light-weight Open-wire feedline for Portable Ops by N5ESE

The Merits of Open Wire lines - This article is devoted to pointing out the advantages of open wire lines and discussing a few particular applications where they might be the preferred choice to feed the antenna.

Open Wire Feed Line a second look - Put up the longest dipole you can fit, feed it with open wire line, connect it to the balanced output of your tuner and—poof! Instant multiband antenna. Is life really that simple? By Paul Danzer, N1II

Mobile 2 meter halo antenna - This HALO design is not ground dependent and can be mounted atop a section of PVC.

A Tree Friendly 2 Meter Halo Antenna by KR1ST - Article on a 2 and 6 meters halo antennas that does not require a mast has a very low part count and can easily be built with a minimum of tools.

My Quad Project - My Quad Project. Simple to build in a weekend. 2 Element vertcal polarity. 99 percent off the shelf parts. Light weight.

Analysis Of Antenna Mast Strength and Bending Stress - Calculations for determining the wind loading stress on an antenna mast. Link to a spreadsheet for calculating the mast bending stress based on wind speed and antenna cross sectional area.

Radio Sport Amateur Radio Contest Calendar - Amateur Radio Contest Calendar with iCal support.

NS9RC North Shore Radio Club - The NSRC is a not for profit organization that extends through the entire spectrum of Amateur Radio.

Knoxville Hamfest & Electronics Exposition - The friendly hamfest that brings hams and dealers together to learn, socialize, and buy/sell equipment. Kerbela Temple

K3STR Sussex Tech High School - K3STR, the club station of Sussex Technical High School, Georgetown, DE, and the Sussex Amateur Radio Association invite you to attend the Sussex County Hamfest.

Nevada Reno Live Police Scanner Stream - Live streaming police scanner feed from Reno Nevada USA

Tabor Electronics - Tabor electronics produces high-end function generator, universal counters/timers, synthesizers, pulse, function and arbitrary waveform. Frequency counters

About Digital Smart Technologies - A general guide to D-STAR. The purpose of D-STAR is to allow HAM Radio operators to speak further and clearer using digital voice while sending data from 1200 BPS on up at the same time.

IRC D-STAR - Independent Radio Club D-STAR repeater system

D-STAR Callsign Calculator - This is a user-friendly web page based D-STAR call sign calculator that requires no installation or configuration to use.

WideBand for Yaesu 817 857 897  ^pop - This software will allow you to extended TX for the Yaesu FT 857 FT 817 FT 897 and reset back to standard factory defaults.

Mendelsons - Mendelsons handles surplus & liquidation inventory

cocoaNEC - cocoaNEC 2.0 is an opensource Mac OS X application intended primarily for the design and modeling of antennas by Kok Chen, W7AY

Tone Sound Frequency Sweep Generator - Generating of up to eight independent oscillatory processes per each channel with separate frequency, initial phase and amplitude controls.

Sound Card Interface by VK6YSF - Presented here is a transceiver to computer sound card interface complete with automated transmit key function. A sound card interface is simply the audio coupling of a computer soundcard and a transceiver to allow various computer applications that send and receive SSTV, RTTY, PSK31 and other similar modes based on soundcard generated signals.

Harmonic Converter for Spectrum Analyzers - Extending the frequency coverage of spectrum analyzers, Harmonic mixer by Matjaz Vidmar, S53MV

Homebrew RF Test Equipment - Several projects which will allow you to build your own RF design test equipment.