power mic

3 elements VHF yagi antenna - 3 elements VHF Yagi homebrew antenna designed with YAGIMAX 3. Maximum forward GAIN is about 8,17 DBi. This antenna offering an effective radiation power 4 times greater of the transceiver output by SV1BSX

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

LT1F BadPower - Bad power -LT1F site of the circulo de radioaficionados rosario Argentina

D-Star presentation and sounds - A powerpoint presentation of the D-STAR operating mode by K7VE includes d-star sound samples

microHAM - Accessories for your hamshack, such as Band Decoders, various types of Antenna Switches, Antenna Stacking devices, special devices designed dedicated for the SO2R operating technique, USB Interfaces, cw keyers and many others

usmartdigi TNC - A postage-stamp-sized DSP microcontroller imbedded in the TNC-X eliminates the dedicated laptop or PC.

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

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

FILPRO - The most flexible and powerful Microwave and RF Filter and Multiplexer Design Software

Nuhertz Technologies - Leading supplier of low and high frequency electronic filter design products for the design of wireless telecommunications equipment, semiconductors and more

Omicron filter design - Electronic filter design software by omicron is the best for developing active filter, passive filter, and digital filter - check out our products and ordering information.

WaveCon ProCap - Microwave/ RF Circuit Design and Analysis Software

Filtroid - Filtroid is an extremely easy-to-use program for synthesizing microwave filters. It can be used to design practically all filter types from audio to microwave frequencies as well as amplitude and delay equalizers and attenuators.

Anderson PowerPole Connectors - This standard assures that any radio can be connected correctly to any power supply. Here you can find some assembly notes

1.8-54 Mhz Low pass filter - An easy to make HF low pass filter form high power by k8cu

Online Microwave Filter Design and Analysis - This site is dedicated to design and analysis of micro- and millimeter wave filters from 0.5 to above 100 GHz.

Economical keyer - Using the PicoKeyer chip. Features a 60 character memory, setup & message entry using a paddle and no battery is required to retain the memory.

CW keyer - The PIC-MORSE is an electronic iambic keyer, integrating a generator of Morse code and a sidetone. It is built with a microcontroller PIC16C711. In French

12 Volt 30 Amp Power Supply  ^pop - Project for a 12 volt, 30 ampere Power Supply Unit

28 VDC Power Supply - This little project will make a portable 28 Volt DC power supply using two 12 Volt, 4.5 Ah rechargeable lead-acid batteries

20 Amp power supply - A 13.8 volt 20 Ampere power supply project

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.

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

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

Vacuum tube liquid cooling system - This article describes an alternative to water as the cooling liquid for amateur radio vacuum tube power amplifiers. This cooling system is designed for adequate vacuum tube cooling, reasonable cost, and very low maintenance. By K8CU