transmission line

Diplexer construction 2m/70cm and SW/VHF - Build your diplexer with more than 70db port isolation and less than 0.2db attenuation. Easy project.

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.

6dB colinear VHF antenna  ^pop - Building details of a VHF colinear antenna with 6 db gain

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.

HF mobile antenna  ^pop - Build your mobile antenna which outperforms Hustler by 10db and ATAS-100 by 18db. From 80 to 10m.

Ham Logs Online - Put your Ham Logs online, compare contest scores, send and receive electronic QSL requests and more. The place to see if you finally worked them!

TEARA - Triangle East Amateur Radio Association - Homepage of the Triangle East Amateur Radio Association, in central NC. This site has been online continuously since 1994!

Portale del Radioamatore - Nuke portal for italian radio amateurs. Needs registration.

on4dsq audio file website - MP3 recording files, dx-ing, photo's, dxclusters, railsystem, online logbook

Radio Audio and sound files - Some tens of very special audio files recorded during amateur radio activities like aurora traffic, meteor scatter, communications with ISS crew and the sound of various transmission modes that you can hear on HF and VHF bands

WD7S Productions - A collection of kits for control and protection of homebrew linear amplifiers

KEYCOM Characteristic Technologies - Millimeterwave/Microwave transmission lines and components, Cryogenic temperature application transmission cables and systems, Permittivity(Dielectric rate) and Permeabillity measurement systems, Antennas, Radar systems

Great Circle calculator - Excellent on-line java great circle calculator with perl source code and excel spreadsheet for gc calculations

Global Overlay Mapper - Dynamic Map Progam with 34 maps, 442 overlays, and realtime position/locator info. Online Demo available. 0-59c per map.

6 Meters Online - 6 Meters Online. A site for 6m enthusiasts with propagation reports, forums, webcams and more.

Put Your Scanner Online - how to - This tutorial explain how to put your radio feed streaming on the internet using MS windows media encoder.

Norwegian Scanner site - Online database: downloadable database, updated monthly. In norwegian.

Antenna Masts & Mounts - Online shop for Rotators, masts, wall mounts, chimney mounts, tripods.

12 Volt Electronics, Inc. - The CB Shop in PA

Funktechnik Grenz - Online shop for ham radio equipment. Yaesu, Kenwood, Icom, Alinco, Diamond, Power supplies, Antennas, Rotators with world-wide shipping.

F.G. Best Communications - CB and Ham Radio Repair, Service, Modifications, Linears, Tweak And Peak, Wattmeter, microphone,kenwood,icom,galaxy,cobra,uniden,upgrades

Scanner Master Police Scanners - Police scanners by Uniden Bearcat Scanners, port radio scanners antennas parts or listen to live online emergency police broadcasts with radio frequency codes by Scanner Master

Smith chart calculator - linSmith is a Smith Charting program, mainly designed for educational use. It allows defining multiple load impedances (different frequencies), and adding components (discrete components and line sections) in series and parallel. It plots the impedances on the screen, shows the values in table format, and is able to generate publication quality Postscript output.

Radio-Electronics.Com - Information and tutorials about all aspects of radio and electronics including propagation, ham radio, electronics, radio history, etc

QRP equipment - Simple QRP rigs, Transceivers with single side band direct conversion receivers, Receivers, Frequency counters for QRP