dummy load

Vertical for 80 or 160 meters - KE4UYP project for a top fed 1/4 wave lenght linear loaded vertical for 80m or 160m

2 meter HT Handipole - Add some gain over your rubber dummy load with this full size dipole on your HT.

Antenna Loading Coil Calculation  ^updated - The calculation refers to either a loaded 1/4 wave or a loaded dipole,

Inductor operation - Understanding current in loading coils

The Cobra antenna - This article explores the Cobra Junior linear loaded antenna for 80m to 10m bands. This antenna is a linear loaded dipole described by W4JOH in 73 magazine June 1997

3MA triband mobile antenna - 3 band mobile antenna - 10m full size wave/4 whip - quick tilt-down system for 20 and 15 m loading coil change by IZ7DJR

Mobile Portable Whip Antenna - A simple base loaded quarter wave vertical, which can be used on a car or portable by G3YCC

Gamma Match Article - A working analysis of the gamma-match problem that gives usefull practical results. New light on the question of when it will and when it won't give a perfect match to the coaxial transmission line.

Multiband HF Vertical - A telescopic pole that you adjust to suit the band you're working on , tested on 40 20 and 15 meters band by M0PZT

HF BandPlan by RAC - Canadian HF Bandplan by RAC in pdf format

Bird Technologies - Bird Technologies supplier of RF products, like RF Meters, Bird 43, VNA, Spectrum analyzers, attenuators, transmitters combiners, dummyloads, terminators and replacement parts

Telepost - Digital Vector Wattmeters, Dummy loads, software defined panadapter systems, SteppIR Tuning Relay, Digital SWR meters, LP-Pan Pan Adapter IQ Decoder for SDR based panadapter system

QRP 1:1 Current-type Balun for Portable Use - A ferrite-loaded coaxial RF choke which just happens to yield the same result as a 1:1 current balun

ICOM IC-7000 Downloads - Here you will find any useful downloads for IC-7000. Manuals, video clips, reviews, brochures

Ten-Tec: Jupiter Firmware Downloads - Donwloadables binaries for the ten-tec jupiter radio

Orion Logic/DSP modifcation - Orion Logic/DSP modifcation to support Version 2.x firmware

DB37 FT-450 Cable - Schematic for Data, power, CAT, Key and Mic connection interface cable

DB15 FT-450 Cable - Schematic for Data CAT Power and Key cable interface for the Yaesu FT-450

RSGB FT-857 Review - RadCom Jun 2003 review of the Yaesu FT-857

CQ/X - Information and download page for the CQ/X GPS-enabled logging program for mobile operation in amateur radio state and regional QSO parties by N05W

Windipoles - Windipoles is a free passive filter simulator. It is a Windows .NET executable, so no software installation is required. It enables design, analysis, optimizations and plots, all graphically.

Ham Radio Deluxe Satellite Tracking - Nova DDE Support, Scheduled Kepler data downloads, Integrated web browser, Audio announcements, Google Earth integration, dual radio support

Capacitor kVAr calculator - Online calculator to determine the Capacitor kVAr required to improve the power factor from cos 01 to cos 02 with your present kW load

Salt water dummy load - Use plain water with a little salt added to build your own Dummy Load

Modify ICOM IC-735 for DRM - Modify the ICOM IC-735 HF-Transceiver for DRM reception