tape measure yogi

OH7SV Matti Hohtola Ham Projects  ^pop - The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO, 50 ohm to 200 ohm HF wide band transformers, Wilkinson splitter for RX measurements, Windom baluns 2001/2004, Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver

AT Indonesia - AT Indonesia division web site

Townshippers Radio Amateur Club - Quebec Eastern Townships amateur radio club involved in HF contests, VHF-UHF repeaters, VHF-UHF weak signals, APRS, packet, emergency measures.

Pile Up Sounds - Morse Pilup Audio tapes available also in Real Audio format.

Comelec - Electonic kits, for adio,hi-fi , meteo, gadjets, medical and measure.

RF Applications, Inc. - Specialized in RF Power Measurement Systems and other devices that make operating radio transmitting stations safer and easier.

KEYCOM Characteristic Technologies - Millimeterwave/Microwave transmission lines and components, Cryogenic temperature application transmission cables and systems, Permittivity(Dielectric rate) and Permeabillity measurement systems, Antennas, Radar systems

Galco - Control Products, drives, motors, test, measurement

PicoScope - Pico Technology have developed a wide range of professional PC-based instruments that offer all the functionality of conventional test equipment (DSO - digital storage oscilloscope, spectrum analyzer, meter), and also many features not normally available in this price range. Available functios are Oscilloscope, Spectrum Analyser, XY Scope, Meter and Measurements

Bird Electronic - Design and manufacture of components, instruments and systems for RF power measurement.

GPS Time Series - The Global Positioning System (GPS) is a constellation of 24 satellites which is used for navigation and precise geodetic position measurements.

Listening In - A monthly publication of the Ontario DX Association - available in print, tape and email versions.

Success Easy CW Tapes - Sells training tapes for Morse code that use hypnosis to speed learning.

PolarPlot - Freeware antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating. With PolarPlot you can measure the polar diagram of the antenna and check for abnormalities - compare plots taken before and after changes to the design or location - check the -3dB beamwidth - look at the front to back ratio - see the size and position of the sidelobes.

Smith chart - Match & display imped of antennas, can graphically visualize and compare two sets of measured impedances simultaneously.

Palm Globe - A World Globe for Palm OS - Displays one hemisphere of the earth from any location. Can also display the greyline, and measure the distance between two points on the globe. It does not do a great circle projection.

A.M. tutorial - This tutorial is designed to help explain some of the concepts involved in RF power measurement for amplitute modulated signals.

TS-440S Improvements - Various circuit improvements for the TS-440S by Richard L. Measures, AG6K

TS-430S Improvements - Circuit improvements for the TS-430S by Richard L. Measures, AG6K

TL-922 Improvements - Circuit improvements for the TL-922 by Richard L. Measures, AG6K

TS-830S Manteinance procedures - Improvements and maintenance procedures for the TS-830S

HA8ET Technical & Homebrew pages  ^pop Priority listing - Technical Articles, Homebrew,Test & Measurements, (Returnloss Bridge 1,8 MHz...1300 MHz, 2m/70cm DIPLEXER...) Vacum Tube Databases, VHF-UHF-SHF Power amplifiers,HAM links, electronics links

ESR METER: (Equivalent Serie Resistance of capacitors) - Esr meter to measure the equivalent serie resistance of capacitors

Using ferrites for interference suppression - This tutorial is meant to shed some light on the use of ferrites, and also presents some comparative frequency domain measurements both to illustrate some of the points, and to give designers an idea of what they might expect in using and specifying a ferrite component

Build A Vector Network Analyzer - The VNA (vector network analyzer) is an essential tool for measuring the complex impedance of a circuit at a given frequency. Article on how to build a Impedance analyzer.