type 75 toroid/equivalen

Monster Quads - N6LF tells us about his monster two-element 40-meter quad, with bonus three elements on 20 and 15 meters.

Single support gain antennas for 80-160 meters - On 80 and 160 meters an antenna with modest gain and good front-to-back (F/B) ratio, along with a steerable pattern, can be very effective for contesting.

The Lazy-H vertical antenna - A versatile antenna for dx work

JA7KPI Windom antenna for 40-80 - The total length of this antenna is 41m, height is about 11m, and diameter of element is 2mm. JA7KPI modified this antenna originally used as Inverted-V type of 80m band Dipole. Works on 40 - 80 meters band with acceptable swr.

Conductors for HF Antennas - Putting up an antenna for the low bands? What kind of wire will you use? This analysis may change your plans.

Conductors for HF antennas : Foil - About foil conductors

The DK7ZB-Quadlong antenna - New type of a Quad antenna, 6.4dBd gain

WWVB Loopstick Antenna - A loop antenna for receiving WWVB based on the Amidon R33-050-0750 Ferrite rod.

Types of Antennas for Satellites - What type of antenna should I get? Well, the best type of antenna for working the OSCAR satellites are circular polarized antennas

Types of Coax in Satellite operations - Coax is a very important part of a satellite station. It is almost as important as the antennas you choose.

The Small Loop Project - AM loop antenna for 75/80 meters band

Optimizing half-wave sloper arrays for 160 meters - This article presents a 160-meter variation of this family of antennas and, more importantly, a discussion of the details of how to get such a beast working really well.

Another way to look at vertical antennas - What iss the difference between a dipole and a vertical? Maybe not as much as you think. Come along and try another point of view.

Verticals. Ground systems and some history - Article gives a good overview of the basics and reflects the accepted wisdom from BC antenna work.

Short radials for ground-plane antennas - Think your elevated radials always have to be full size? N6LF lets you in on some great ideas to lessen the “wingspan” of radials, especially near the beach.

Wire Antenna - This page describes a cheap, weather-resistant and readily available type of antenna wire by HAMwaves.com

Pacific T.V. Online Tube Catalog - Vacuum tubes and sockets for radio, audio and amateur use. Over 1500 types, online schematics and technical data

Hamilton Amateur Radio Club - The Hamilton Amateur Radio Club operates the VE3NCF repeater, 146.760- and 444.075+MHz. It is open for use by all Hams

NI4CE West Central Florida Group, Inc - Founded in 2001 to manage and operate West Central Florida's only regional linked amateur radio repeater system. Currently, the NI4CE Repeater System operates nine repeaters from five sites with more on the way. NI4CE covers all or parts of twelve counties in West Central Florida and provides mobile coverage along the areas I-75 and the I-4 corridors.

N200 835 Amateur Radio Group, Inc. - The Manahawkin Repeater since 1975

Long Island Amateur Radio Club - 575-Long Island Amateur Radio Simplex Club, Operating locally on 147.575 FM Simplex from Grid Square FN-30

North Coast Contesters - NCC was formed in 1989 to further the efforts of contesters interested in the CQWW and ARRL DX contests. The member area of the club is a 175 mile circle that includes major parts of Ohio and Pennsylvania.

Heathkit SB-220 - The Heathkit SB-220, two 3-500Z, amplifier made a notable impact in the world of amateur radio when it debuted in 1975. Resources and modifications

The Tube Center - Supplying over 2000 different vacuum tube types, valves, grid caps, sockets and capacitors. It is easy for Antique collectors, Ham radio operators, audio enthusiasts, broadcast enthusiasts and amateur radio hobbyists to buy, sell and trade vacuum tubes, electron tubes, audio tubes, valves, grid caps, sockets and capacitors

ICOM Rig Control - Freeware amateur radio transceiver control program tested with IC-756 Pro.