wind load calculator

Coaxial cable dipole for 80m - Here are some simple antennas you can build along with calculators to help you get the right length.

C-Pole antenna calculator - Based on the original design by Brian Cake, KF2YN this online calculator let you find the correct dimensions for a cpole antenna

Small Transmitting Loop Antenna Calculator Priority listing - A free online calculator for making all of the calculations required to design and build small transmitting loop antennas, also known as magnetic loops by 66pacific.com

Feeding an End-Fed Antenna  ^pop - End-Fed antennas are NOT balanced systems; but neither are verticals, ground planes, discones, windoms, zepps, Marconis, half-slopers, et al. Additionally, the low-impedance antenna port of your transmitter/receiver is not balanced.

Linear Loaded mobile antenna - A vertical linear loaded antenna for 2 meters band in italian

6-Band Windom antenna  ^pop - Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio (ham) bands

What make the carolina windom so good - The off-center fed CAROLINA WINDOM provides outstanding performance on all bands. This includes all the WARC bands, 30, 17, and 12 meters.

An Examination of the Gamma Match - W3PG working analysis of the gamma match problem taht gives useful practical results

The Carolina windom antenna - Homebrewina a multiband windom antenna

Off-Center Feed - The Windom Antenna - The Windom antenna was widely used in the 1930s and is named after the amateur that wrote a comprehensive article about it

Windom Antenna with 4:1 balun - The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .

ZS6BKW Antenna - A G5RV revisitation by G0GSF Brian

DXCC Country lists - An updated DXCC country list, including a 10 band checklists in various file format made available by dx newsdesk

US Band Plan by ICOM - ICOM USA Amateur Radio HF VHF/UHF band plan updated to 2008, include a Common Country prefixes in PDF Format

VE3WHT BCRC - The Border City Radio Club Windsor Ontario Canada

Into the Wind - fiberglass products - Manufacturer of fiberglass parts for kites

Wire Free Direct LtD - UK company that's a full-line dealer for wind and solar power systems, plus system design.

HF Beam Calculator - A javascipt online calculator for 2 and 3 element beam antennas. Just input frequency and will diplay element dimensions and spacing. Measurements in Feet and Meters by G4VWL

S Meter Lite Software - S Meter Lite is a no-cost program that displays your receiver's S Meter signal strength in a window by W8WWV

NBEMS - The Narrow Band Emergency Messaging System (NBEMS) for Windows is a suite of software programs designed for point-to-point, fast, error-free, emergency messaging up to or over 100 miles distant, and takes up a very minimum of frequency space on the ham bands, leaving more space for other ham activites.

QTH Locator - QTH Locator is free Windows program to calculate distances and angles between 2 stations, with a data base to handle and store position data (even usable as a simple logbook) and a lot of graphic stuff to display geographic positions. It is capable to display self-made maps or UIVIEW maps also. by dg4mcb

Great Circle Calculator - A javascript online calculator of bearing and distances by G4VWL

Contact-Multi - Contact-Multi is a Freeware Multi Digital program for Windows (PSK, RTTY,FSK and MFSK). It provides a DXCluster, Diplomes,LogBook,Qsl's Print, statistics Shareware version available. English and Spanish version

Free Sun Power - Free basic and advanced system design tutorials for every component and aspect of solar power. Plus system sizing calculators, battery bank calculators and wire size calculators

100 W Resistive Load - This was a project to make a dummy load or, as the finished thing is more correctly labelled, a fifty ohm resistive load.