short wave tuner

21 mhz half wave GP Antenna  ^updated - 21 mhz half wave ant -very low radiation angle - full size and light weight- all coax matching system - decoupling care to prevent low angle radiation degrade

Vertical antenna for 160 meter - This high antenna require a large ground composed by 40 radials. It's not very handy expecially in windy situations but is very powerfull in pile-ups. In italian

VK5AH -HF 4 Bander dipole  ^pop - 80 - 40 - 20 - 15 meters dipole antenna

40m/80m Portable antenna  ^pop - Portable antenna for 40 and 80 meter

Morgain Antenna for 40/80 - Simple and cheap antenna for 40/80 meter band

Dipole for 40 meters - Shortened dipole with traps for 40 meters band in portuguese

Vertical half-wave aerials for 4m - Practical designs pictures and alternative design of antennas for 70 Mhz by Ross Wilkinson G0WJR

Antena Bazuca - Drawings and short descriptio in spanish for dipoles and bazooka antenna.

Magnetic Loop Antenna - Although a magnetic loop antenna(aka small loop antenna) is very compact, its efficiency is close to a half-wavelength dipole if carefully built.

Whip antenna for Yaesu FT-817 - Picture collection of a whip antenna similar to the Whip Miracle, in italian

W4JOH Cobra Antenna - The original Cobra antenna, is a multiband 160 or 80 to 10 meter, designed by W4JOH is built using standard insulated wire of about 14 gauge and fed with 450 ohm ladder line down to the shack into a tuner.

About NVIS antennas - What is NVIS Near Vertical Incident Skywave

Fundamentals of Off-Center-Fed Dipoles - Off-center-fed dipoles (OCFs) are 1/2-wavelength wire antennas fed at neither the center nor the end, but somewhere between--off-center

K-FACTOR Table & Chart  ^updated - Determine the K-Factor used as a multiplier when constructing half-wave antennas.

Wlan antenna Waveguide type - This antenna is constucted only of a cylindrical can and a N connector with centre tap lengthened

ZS6BKW variant of the G5RV - The ZS6BKW variant of the G5RV claims to offer multi-band coverage without the need for a tuner. This article looks at whether or not these claims are valid in a real life installation.

DX Audio Files - MP3 Sound Clips - International Medium-Wave DX by Mark Connelly, WA1ION

RF HAMDESIGN - An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.

Nye Viking - Antenna Tuners, morse keys, keyers and filters

Local Area Communications - Communications for short distances can be done in VHF or in HF mode, here is explained the differences.

Lowe electronics - UK dealer for pmr audio accessories, batteries and cases, audio accessories and airwave tetra products

PKTerm for windows - Pkterm 99 is a host mode terminal program for the timewave and aea tncs. it works with windows 95, 98, and nt.

Propagation Wizard - Freeware windows application that help in determine the availability of a shortwave link, by Rohde & Schwarz

RevLoad - This graphics-intensive program reveals the load on the output of a matching-network, based on measurements of the components in that network. Adjust the network (tuner) for a flat input, measure or look up the network component values and you will immmediately see the R and jX values of the load on the network, presented as both a schematic with the component values and as a Smith Chart normalized to the specified system impedance.

BB Tuner construction - Building a balanced-balanced tuner by KK5DR