fir filter

A Short Back Fire antenna - A Short Back Fire antenna improved for Wireless-LAN applications

A Practical Antenna for 160 Metres  ^pop - 140 feet of insulated wire, the first half of which (70 feet) is space wound on an insulated tube.

FVR Spitfire Array - The Powerpoint presentation below was given by Fred Hopengarten, K1VR, at the 1998 Dayton Hamvention Antenna Forum

DIY Basic Electronics and Antennas - DIY Basic Electronic Theory, Basic Antenna Theory with Antennas built from common materials. What does SWR really mean. Baluns from transmission line.

Beverage antennas notes - how to build a beverage antenna

2 Meter J-pole from 450-Ohm Ladder Line  ^pop - Great first time J-pole project. Covers most of the basics. This small and thin design also makes it good for several stealth applications.

Quad vs. Yagi - Why go for a quad rather than a yagi

Longwire antenna basics  ^pop - basic notes on building longwire antennas for medium waves

Choosing wire for an antenna  ^pop - One of the most asked questions when it comes to antennas is what kind of wire should I use

Stealth Base Station Antennas - Restrictive covenants or ordinances got you off the air?

Space restricted antenna - how to build a space restricted or apartment antenna

Limited space antennas - more limited space antennas

Barlow Wadley XCR-30 Home Page - A site all devoted to the first full coverage HF transistorized portable set of the world.

Associazione Club 27 Catania - Italian association affiliated to Protezione Civile FIR-CB

CQ The USA-CA Awards - The United States of America Counties (USA-CA) Award, sponsored by CQ magazine, is issued for confirmed two-way radio contacts with specified numbers of U.S. counties under rules and conditions hereafter stated.

Hatfield and McCoy Amateur Radio Association - Friendly Association located in and around Western West Virginia and Eastern Kentucky.

Eurofrequence Dierking NF HF Technik - UFB Hamradio audio filters and more accessories

How to make a Morse Code QSO - This step-by-step tutorial contains everything you need, not only to survive that first contact, but also to learn to enjoy Code and actually do it well. Even if you detested learning it in the first place

M.E.B.A. Electronics - Distributor of electronic's, also carry astatic, cherokee, cobra, dosy, firestik, solarcon,CB radios,10 meter radio's, antennas, microphones, power supplies, echo boards, expanders, meters and CB accessories along with Mobile audio/video products.

AMANDX - AMANDX is a site dedicated to the new listener. There are articles on antennas receivers etc.

MultiPSK  ^{updated  pop} - Windows freeware miltimode program by F6CTE that supports BPSK31 QPSK31 PSK63 PSK63F PSK10 PSKFEC31 PSKAM CW CCW THROB 4 bauds THROBX RTTY SITOR-AMTOR-NAVTEX FELD HELL PSK JT65 HELL HF FAX SSTV FILTERS

Variable bandwidth cw filter - As the sunspots return and DX propagation conditions to improve, the age old problem with QRM begins to show up on the amateur bands. Thif filter help you on improving reception

Grounding system - Perhaps one of the most over looked aspects of setting up a listening post is a ground system

QRO GU-84B TETRODE Priority listing - GU-84B Homebrew HF Amplifiers

Tips on Mic Wiring  ^pop - General instructions for wiring a microphone to a radio