440 yagi design

HF Aerial Design - A novel approach to aerial evaluation with diagrams and graphs by G3CWI

DX Dual Dipole  ^pop - Two dipoles fed from the same coaxial line by n6bz for 20 and 15 meters

J-Pole antenna design  ^pop - Complete guide to build Jpole antennas with online dimensions calculator.

A Hanging Rectangular Loop Antenna - A rotatable hanging loop antenna that has been specifically designed for hanging in a tree. Horizontally polarized with a broad azimuth pattern and gain of nearly 3dB over a simple horizontal dipole!

NB6Zep Antenna and more - A modified EDZep for 20 meters, Yagi, Zepp Beam, Dual Dipole, Space Restricted 80 meter wires. Operating Bands: 40 thru 10 meters with tuner

Antenna switch for sloper antennas - An easy to build antenna switch for long wire antennas, expecially designed for sloper antennas

Cheap VHF/UHF Antennas  ^{updated  pop} - Cheap Yagi Antennas for VHF/UHF

Yagi-Uda antennas - A Yagi-Uda antenna is familiar as the commonest kind of terrestrial TV antenna to be found on the rooftops of houses

G3SYC Antenna page - 2 element Yagi antanna plan from G3SYC

Luxembourg Callbook - Designed and copyrighted by Norbert Oberweis, LX1NO/KM6RY

ZX-YAGI Antennas - Fine HF beams for Ham Radio and CB made in Germany

Nally radio towers - Radio towers with designs made specificaly for Amateur Radio operators, incorporating mounting plates for most common rotators with in tower structure allowing for safety in the use,and tilt over preventing the need for climbing towers during regular maintance

Andrews Communications Systems - Australian dealer, HF linear amplifiers, power supplies, baluns, HF UHF yagis and verticals including multiband HF verticals.

QTH.COM Priority listing - QTH.COM by KA9FOX offer classified swap ads for amateur radio and web design along to evoluted web hosting

Yagi Designer  ^pop - Program that produces antenna radiation patterns and graphs for SWR, forward gain, and F/B ratios

ASAP - A Free general purpose antenna analysis user-oriented software program for numerical electromagnetic antenna design, antenna modeling and antenna analysis.

Scanrec Scanner Recorder - Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.

Vox Recorder  ^{updated  pop} - Vox Recorder is a Windows utility wich allows recording sound from an audio source only when an audio signal is present; its main purpose is to avoid the recording of the silence eventually present at the input. Vox Recorder has been designed in particular for radio-scanner hobbists.

Stream - Stream is a software that implements MFSK16 and MFSK8 modes designed by me and Murray Greenman ZL1BPU. It also offers a series of experimental modes based on FEC, interleaving and several modulation techniques (PSK, QPSK, MSK, &c.).

WinPSKse - WinPSKse is a logical outgrowth of WinPSK as designed and written by AE4JY. The look and feel is intentionally similar, but some significant changes have been made, not the least of which is the ability toreceive two PSK31 signals simultaneously.

Satsoft - Satellite antenna design and systems engineering software for windows

PLL2 - 2nd Order phase locked loop design for passive and active circuits. Bode plot, step response, design parameters

WB0NNI Home Brew HF Amps and Tutorials  ^pop Priority listing - Tutorials and other information on designing and building hf amplifiers. Includes tube data and amplifier projects.

TS-440S Improvements - Various circuit improvements for the TS-440S by Richard L. Measures, AG6K

Toroid Pro - Designed by microwave engineers to provide filter, radio,microwave and Ham radio engineers with all relevant information of an inductor and core at his or her finger tips