homebrew rf attenuator

Vertical antenna for 160 meter - This high antenna require a large ground composed by 40 radials. It's not very handy expecially in windy situations but is very powerfull in pile-ups. In italian

F6EZX Deltaloop - F6ezx homebrewing a deltaloop antenna in French

20 meters Cage Dipole - Cage Dipole is based on the fact that a wireframe does emulate a tubing of the same diameter, supposed that the wires in the frame are close enough to resemble a solid surface.

Single Coil Z Match - Single Coil Z Match, circuit Diagram and homebrewing notes

G5RV Antenna Homebrew - Homebrew G5RV a simple multiband antenna by 9M2ZAK

Receiving Antenna Design - Learn basic theory on antennas, and notes on homebrewing efficient shortwave antennas

G/T Simulations - by VE7BQH - Here you will find information on how antennas behave when stacked G/T is an important figure-of-merit for the antenna's overall receive performance, because it balances forward gain (G) against received thermal noise (T).

Antenna insulators for DK7ZB Yagis - Homebrew antenna insulators for DK7ZB yagi antennas

German Call Sign search - Callsign lookup form for german calls

Amateurfunk Fox20 Wiesbaden - Ham Radio Club of Wiesbaden, member of DARC, DOK F20

DL9OAO homebrew amplfiers site - Includes a webcam and homebrewing amplifiers resources

RF Amplifiers - Solid State and TWT Amplifiers From 1 MHz to 40 GHz with Power Levels from .1 mil Watt to 2.5 Kw

RF HAMDESIGN - An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.

Tower - Windows program for analyzing vertical antennas. This program shows the resistance and reactance to be expected looking into a cylindrical metallic tower over a perfect ground. It gives a useful approximation of the values to be expected in a real-world situation.

JavaScript Electronic Notebook, K7MEM - It consists of a group of JavaScript® driven web pages that are intended for use as a quick reference for Ham Radio operators or just anyone interested in electronics. Offer calculators for Resistors, capacitors, inductors, power supplies, filters, attenuators and antennas

Proplab-Pro - An ionospheric laboratory for your personal computer. Wquipped with one of the most powerful ray-tracing engines capable of handling such things as Ionospheric Tilts Chordal Hops Non-Great-Circle Propagation Spitzes and more

AG6K Richard L. Measures - Articles and original manuscripts on RF power amplifiers

K0GKD Solid State amplifier - High Power Solid State 600 Watts Output Motorola MRF 150 FETs

N4IP HF and 6 Meters amplifier - A solid state amplifier for HF and 6 meters band by N4IP

11 KW Linear amplifier by I0JX  ^pop - Use 4CX10000D / 8171, RF output power of 11 KW in key-down carrier on all bands. Power was measured with a Bird 4712 wattmeter and a 25 KW slug

The Approx. Perfect Amplifier manuscript - Discussion of some design features that would be present in a perfect, or near-perfect, amplifier.

Vacuum Tube Amps - How the tube converts DC to RF Power

Introduction to amplifier design - These tutorials will teach you in very easy steps how to design A class amplifiers.

13cm RF Amplifier - This amplifier uses two 60w Spectrian amplifier boards with the usual input and output hybrid coupler and combiner.

PA7TA RF Amplifiers - VHF UHF Amplifiers