feed line calculation

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

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

Shunt feed a hustler mobile HF Antenna  ^pop - 40 and 20 meters mobile antenna

The Bird Feeder Antenna - A hidden antenna must be just that: hidden. So don't install an antenna, but something else. Lika a bird feeder.

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

FAT Radio Cluster - This is the Web Cluster with online spot on 11m and QSM/Dxevent Database

DK7UY Online logs - DXpeditions, Online Logbook and personal stuff

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

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.

KawAZ Azimuth angle calculation - KawAZ shows the azimuth angle of target location from your location by figures and image of compass

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.