240 dummy load

20m mini loaded dipole - It is very simple to build and you can tune it in your shack room

Assembly of the Lightningbolt Quad - One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.

Amateur Radio Band Plan Layout  ^{updated  pop} - Excellent free downloadable band plans layouts ready to print in pdf format by C.Gustave Sandberg W1CGS

LU9DPM Martin - Downloads, colleagues, links, manufacturers and more in English and Spanish

SWL Audio Clips - mp3 files to download produced by an italian SWL. Includes, broadcast stations, air traffic controls, pirate radios

Hy Power Antenna Company - Full size or shortened dipoles, Single band or Multi band, Half Square Antennas, Fan Dipole Antennas, Delta Loop Antennas, Antennas completely assembled Loading coil packages, delta loops

Alpha Linear Amplifiers  ^pop - RF Concepts manufacturer of Alpha Linear Amplifiers, amateur radio RF power amplifiers, commercial power amplifiers, power meters and dummy loads.

Chip64 - Download chip64, freeware windows digital mode by IZ8BLY Nino

Icom IC-706 and SGC-230 - Connecting the SG-230 smartuner to the Icom IC-706 pdf file

Icom IC-718 Service manual - Service maual for Icom IC-718

Icom IC-718 manual - Download the Icom IC-718 manual in PDF format

Yaesu FT-100 undocumented - PDF file compiled by PA3GMP about undocumented features of the yaesu ft100 radio

FT-817, FT-847, FT-857, FT-857D, FT-897 and FT-897D Memory Cloning - The complete status of the FT-817, FT-847, FT-857, FT-857D, FT-897 or FT-897D memories can be read into the computer and saved to disk. Any saved file can be subsequently reloaded into the computer and sent back to the rig. This facility uses these rig's ability to clone configurations from one rig to another using the serial port.

FT817 DSP noise reduction noise - Add-on audio DSP unit from BHI

Yaesu FTDX-5000 Manual Part 1 - FTDX-5000 Operating manual part 1

Yaesu VX-5R mods - VX-5R mods collected by QRZ.com

TLE for windows - Transmission Line equations for Windows. Written in Visual C++. This program provides the most comprehensive analysis of a transmission line by w9dmk

SMCHR smit charts - The Smith Chart program with its extensive Help files. Written in Visual C++ ver 1.5, it runs in Windows 3.1 and later by w9dmk

SmartSmith - A smarter version of the Smith Chart program. It allows you to dynamically generate impedance point plots as you configure each design element of an impedance matching network. Has an extensive Help file with a Wizard that tells you what steps to take in designing a matching network for a given load impedance. Complete Windows installation kit by w9dmk

SWR Calculator - Computes the Standing Wave Ratio, given the power readings on a line.

QRZ.com clip arts - Ham radio clip art by qrz.com

DF9CY Project Auriga - PA is a JAVA software package containing several programs, SW/VHF/UHF Logbook (imports format from RADIOMAN, VMT), Log conversion to HTML format, Import and export functions for RADIOMAN, CT RES files, BV QSL Labels, CSV etc. Internet DX-Cluster support, Keeps track of your worked Callsigns, Checks your worked Grid Squares per band, Databases for worked Grids and Callsigns Uses K1EA CQWW.CTY country file, Easy command line version for terminal operation Moontracking as clock, Pathloss calculation

Cabrillo Evaluator by W3KM - Cabrillo Evaluator Software by W3KM free software loads Cabrillo log files, evaluates and scores them.

Amplifiers and Vacuum Tubes Tuning Loading and Arcing - Page on amplification topics. From vacuum tubes to various components, discussion on stability and arcin causes.

HF Rigs db comparison - XLS file with technical specifications about ham radio transceivers