450 ohm line match

160 meter linear loaded voltage feed T  ^pop - 160 meter linear loaded voltage fed T antenna

Linear-Loaded Dipole for 7 MHz  ^pop - A short but efficient dipole for 40 meters band

A linear loaded vertical antenna  ^pop - Vertical antenna design by David Reid PA3HBB G0BZF

K7EM 80m 4-Square Array - This array has been in use since 1989 The SWR from 3.5 to 3.9 is below 1.5:1

KB1DIG's 2 Meter Antenna Design Gallery  ^pop - Home-brew antenna designs for VHF. 2-meter colinears, 2-meter Halo, and 6-meter Halo

Open Wire Feeders - How to make 450 ohm open feeder

Using Delta Matching on HF Beams - Using delta match with HF antennas design

160 meter full wave loop antenna  ^pop - The antenna is a 10 - 160 meter horizontal loop fed with 450 ohm ladder line all the way into the ham shack to an Palstar AT1500BAL balanced line antenna tuner

Broadband receiving antenna matching - This article addresses the subject of obtaining the best signal transfer from an antenna to the typical 50-ohm receiver input over a wide frequency range, with emphasis on medium-wave (500 – 2000 kHz), encompassing the standard AM broadcast band and the 160-m amateur band.

Integrated Publishing Basics - Radio wave propagation, Principles of transmission lines, Antennas

DK7UY Online logs - DXpeditions, Online Logbook and personal stuff

OH6YF Log Search - Logs of: OH6YF, OF6YF, OG6YF, OI6YF, OH6Y, OG6Y, OH0MYF, OH0MYF/6, M0BYF, M/OH6YF etc... Over 140000 contacts online!

Kenwood TS50 web control - This is an academical project to control my TS50 from the web.You can of course listen live real time audio. It is not 24 hours/day ONLINE, but click on the link to know if its connected.

IRLP Operating Guidelines - Operating procedures for IRLP use

Learn CW On-Line! - Learn the Morse Code (CW) Online, adaptive learning technology focuses on the characters that trouble you most

On-Line HF Propagation Prediction - *One single page* gives you an immediate overview of current shortwave propagation conditions at your location.

Outbacker Antenna shop - Outbacker HF Mobile Antenna from Down-Under, Old Fashioned Service in secure online shopping

Difona Communication GmbH - Transceivers, anntennas, PA, power supplies, accessories from Kenwood, ICOM, Yaesu, MFJ, ACOM, DAIWA, Diamond, DXSR, Alinco, Ameritron, ETM, Fritzel, UKW Technik, AOR, Bencher, Create, G.B., Heil, Hotline, Maldol, Tonna, Titanex, Outbacker, Hy-Gain, Mirage, SCS, SGC, SSB Elektronik

Design and build helix antennas - An on-line javascript calculator and quite a few pictures to show how to make a helix antenna.

EMMCAP - EMMCAP is a user-oriented 3D Curved MoM software for the modeling of arbitrarily shaped wire structures and the computation of their electromagnetic behavior.

CQ Callbook - Online Internet Callbook Priority listing - The CQ Callbook makes it easy to find QSL information from web-accessible sources like address and manager databases and country-specific callbooks. The search procedure is quite easy: just enter Callsign and click on the Search buttons.

CallSign Software - Hi-end software for the Ten Tec software radio line inluding Pegasus Jupiter and RX-320

11Meter Amps  ^pop - This group is here to discuss linear amplifiers used on the 11 meter citizens band.

Z Match for Higher Power - Single coil Z match witch handles the power of the linear amplifier

IK4AUY Sergio - Advanced QRP Low Cost Mosfets HF Linear Amplifier with schematics, IMD, gain data and more. Six articles about amateur radio.