pdf file

301 links

Quad antenna for 10 and 15 Meters
Building guide for a two element quad antenna planned for 28 and 21 Megahertz ...

[ Hits: 5792 | Votes: 5 | Rating: 6.6 ]

The Sperrtopf antenna for 2 meter band
By ON4CFC Pascal describe how to build a Sperrtopf or Sleeve antenna for the 144 ...

[ Hits: 2682 | Votes: 4 | Rating: 6.5 ]

Trapped dipole for 40-80-160 meters ^pop
Build a space efficient trapped dipole antenna for 40 80 160 meter bands using RG ...

[ Hits: 97006 | Votes: 119 | Rating: 6.24 ]

Balun construction ^pop
PDF files describing how to homebrew a 1:2.5 balun

[ Hits: 26901 | Votes: 41 | Rating: 6.71 ]

The Ultimate transmatch
Usage and benefits of transmatch A pdf document from a QST article made available for ...

[ Hits: 16652 | Votes: 11 | Rating: 5.64 ]
Better Feedline Loss Measurements with Antenna Analyzers
Various publications through the years have shown how the SWR measured on a shorted or ...

[ Hits: 1924 | Votes: 2 | Rating: 10 ]
Let's talk transmission lines
Don't neglect one of the most important parts of your station!

[ Hits: 1061 | Votes: 3 | Rating: 9 ]

Why a Beam Antenna
Some basic antenna information for the newcomer

[ Hits: 1044 | Votes: 1 | Rating: 10 ]

Homebrew your own inductors - W3JIP ^pop
Cannot find the inductors you need for an antenna a tuner or amplifier Build your ...

[ Hits: 28534 | Votes: 21 | Rating: 6.95 ]
Coaxial Traps for multiband antennas
A new perspective on the analysis and design of this popular antenna element By Karl ...

[ Hits: 14643 | Votes: 8 | Rating: 5 ]

Getting the most from your tuner
Here is how to adjust this popular tuner circuit so it transfers maximum power to ...

[ Hits: 2828 | Votes: 3 | Rating: 6.33 ]

A two element yagi beam
Simple gain antennas for the beginner, a 2 element HF yagi antenna

[ Hits: 4823 | Votes: 9 | Rating: 5.78 ]

A beginner's guide to RTTY contests
A pdf file with review of RTTY contests software available on the net and information ...

[ Hits: 2227 | Votes: 1 | Rating: 10 ]

Printable SWL QSL log template - Mike Chambers
Free printable template for QSL log reports Mainly for shortwave listening Pdf file by Mike ...

[ Hits: 2969 | Votes: 19 | Rating: 6.21 ]

Ideas and Projects for QRP
The free pdf book is a compilation of articles congenial to QRP published on 2003 ...

[ Hits: 3321 | Votes: 4 | Rating: 10 ]

Using ferrite for interference suppression
Excellent guide to using ferrite cores for interference suppression Understanding and Solving RF Interference and ...

[ Hits: 6169 | Votes: 6 | Rating: 9.5 ]

A diode-switched band-pass filter
High speed silicn diodes work well as RF switches This article describes how to use ...

[ Hits: 2313 | Votes: 3 | Rating: 4.67 ]

Kenwood TS830S Survival Guide
Excellent collection of TS 830S documents collected from the web and other sources by DL9AI ...

[ Hits: 4664 | Votes: 11 | Rating: 7.91 ]

Low-Power Transceiver Kits You Can Build
A Comprehensive roundup of the most popular QRP transceiver kits on the market in recent ...

[ Hits: 2426 | Votes: 1 | Rating: 10 ]

50MHz-Transverter 10m/6m from DK7ZB
This transverter was built in 1994 a discription in three parts german language for DOWNLOAD ...

[ Hits: 7543 | Votes: 13 | Rating: 8.52 ]