short wave static

Shortened dipole for 10 & 40m bands - A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.

Multi-Band Super Mini Loop Antenna  ^pop - How to make the Super antenna. To build this antenna you need a lot that is at least 100 feet across. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band

DF9CY 11 Element for 432 MHz - A short good performing antenna for 70cm

80 Meter Pizza Pan Antenna - This is a resonant, half-wave, vertical antenna. It takes up little space in the back yard, was designed for operation on a single frequency 80 meter PSK net, and is reasonably inexpensive to construct by Chuck Hines, K6QKL

RF Balun Transformers - This application note is designed to help the reader understand how balun transformers can be used in today’s RF/Microwave communication applications.

Making the W3DZZ Video - A video guide of how to make a high performance,low cost HF multiband antenna for the radio amateur and shortwave enthusiast. Fantastic performance and low cost. Video made by Mike (M0RRQ)

I8EMG-B - I8EMG is running several beacons from 10 meters to microwaves

ZS1J/B - 28.2025 MHz. 5 Watts output to a half wave, end fed, vertical antenna.

Anritsu - Provides technology and solutions for the electronic test and measurement, optical, rf and microwave, wireless, wired, telecommunications. Make Frequency Counters, Antenna and spectrum analyzers, power meters, signal generators

Phase Matrix - Frequency Counter w/Selective Power Measurement, Microwave Sythesized Signal Generator

Tabor Electronics - Tabor electronics produces high-end function generator, universal counters/timers, synthesizers, pulse, function and arbitrary waveform. Frequency counters

Leader - Waveform monitor, rasterizer, video and rf generators

Signatec - Signatec manufactures pc based data acquisition waveform digitizers pci daq boards, digital signal processing pci dsp boards, waveform signal generator pci dac boards, and real time waveform recording products for the signal technology market.

April Instrument - April instrument, manufacturer of programmable microwave signal generators

TRAK Microwave Corporation - Signal generatos, oscillators, direct and indirect synthesizers, exciters custom oscillators

Operating NVIS - Near Vertical Incidence Sky Wave (NVIS) Propagation, PPT presentation by Marc C. Tarplee, Ph.D. N4UFP

What is NVIS - differences from groundwave propagation

Near Vertical Incidence Skywave - NVIS definition at Wikipedia

Kentronix - Dealer of electronic test equipment dealers since 1977 equipment manufactured by Tektronix, Hewlett Packard, General Radio, Dranetz, Bird, Fluke, ENI, ESI, Wavetek, Narda, Keithley, Weinschel, Microlab/FXR, Systron Donner, Kepco, Lambda

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

OH2FFY Ham radio and shortwave listening - QRP Homebrew Ham Operator and constructor in Finland. Also works on the CB2HAM radio conversions and is into shortwave listening

Laser Hot Hits - Laser Hot Hits, International Shortwave Radio broadcasting from England

SigJenny - SigJenny turns your PC into a flexible and powerful audio signal generator for free. It can create multiple waveforms, sweep, fire single or repeating tone bursts. You can save your sound as a wav file, display a frequency response, use SigJenny a bit like an oscilloscope, and do a very good impression of a police car!

Lightning! The Porcupine - An ElectroStatic Discharge Device, Static Discharger, Static Brush or Static Wick