rf spectrum

The Curtain Quad - The Curtain Quad is a broadside array of 7 to more than 200 elements using a very powerful but seldom used method of power distribution

Soft copper Tube Loops - Air conditioning soft copper tubes are perfect for loop construction. If you want to try a loop you must have an air variable capacitor or a vacuum variable capacitor. Article by PY1AHD

TekNet Electronics - Frequency conunters, multimeters, oscilloscopes, spectrum analyzers, power supply and RF network analyzers.

Hameg Instruments - Spectrum Analyzer, Oscilloscopes, EMI Measurement and Power Supplies German test equipment maker

Leader - Waveform monitor, rasterizer, video and rf generators

Link Instruments - Pc based test and measurement equipment and instrumentation: digital oscilloscope, logic analyzer and spectrum analyzer.

BK Precision - Power supplies, electrical testers, battery analyzers, cable tester, rf generators, spectrum analyzers, Digital/Analog Oscilloscopes, Multimeters , attenuators, frequency counter

A Guide to Test Equipment - That just about sums up many peoples’ attitude towards test equipment. Multimeter, SWR/Power Meter, Dip Oscillator, RF Signal Generator, Cathode Ray Oscilloscope

DStarForum.com - Discussion board for all Keen on Dstar radio. Skeds arranged, bugs and software fixes discussed too

Lehman scientific - New unused surplus and used electronic test and laboratory equipment including spectrum analyzers, signal generators and oscilloscope

Scientific Surplus - Buy, sell and trade electronic and scientific instruments. Oscilloscopes, microscopes, signal generators, RF equipment, short & long wave radios, meters and wattmeters, detectors (radiation, metal), spectrum & network analysers military equipment

Naptech - Naptech buys and sells quality test equipment from hp, tektronix, including spectrum analyzers & peripherals, oscilloscope, frequency counters timers, signal generators, multimeters & voltmeters, RF & power meters, microwave amplifiers

DXFile - Windows shareware logging program, offer several features like packet radio interface, web cluster, grid square, beaming directions, qsl manager lookup, dx spot filtering by F6GQK in french.

An RF step attenuator - Make your own rf step attenuator

The Ladder Filter - Article by Lloyd Butler VK5BR

Noise Figure Meter with a Spectrum Analyser - A relatively simple automatic Noise Figure (NF) meter was developed which is using a spectrum analyser as the receiver and logarithmic power detector.

Science Workshop - Home of the Poor Man's Spectrum Analyzer

A spectrum analyzer for the radio amateur - Good tools are priceless when you need them. Here’s a piece of test equipment you’ve always wanted for your workbench

A Spectrum Analyzer for the Radio Amateur—Part 2

W7ZOI / K7TAU Spectrum Analyzer - W7ZOI/K7TAU Spectrum Analyzer Constructed by N8QOH

W7ZOISA Spectrum Analyzer - My Version of Wes Hayward W7ZOI / Terry White K7TAU Spectrum Analyzer

Microwave spectrum analyzer - A practical approach to microwave signal analysis for the home experimenter

Harmonic Converter for Spectrum Analyzers - Extending the frequency coverage of spectrum analyzers, Harmonic mixer by Matjaz Vidmar, S53MV

Spectrum Analyzer building Project. - W6/PA0ZN CATV tuner based Spectrum Analyzer Building Project

Homebrew RF Test Equipment - Several projects which will allow you to build your own RF design test equipment.