21 meg yagi

The G4ZU Spider Beam or Skypper - This 3 elements wire Yagi comes along in a great variety of names. On the 11 meter is calle Skypper due to the manufacturer Alex 1SD019 On Ham bands is called Spider beam or G4ZU.

Small loop antenna for 15 and 20 meters - A Small Transmitting Loop Antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space by Lloyd Butler VK5BR

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

40M Reversible Moxon - W8EGB moxon project, each side is 51 feet long and the turned in sections are each 7.7ft long. This antenna performed similar to a full size two element yagi for 40 meters.

VE7CA portable tribander yagi - 30/17/12 and 20/15/10-Meter Tribanders and a 40 meters inverted V wire yagi antenna

Portable Yagi for 6 Meters - Project for a portable yagi antenna for 50 mhz

EF0610 6 Meters yagi antenna - This is a plan for a 10 elements yagi antenna for 50 mhz

G4IRX Magnetic Loop antenna - Construction notes and design details of a magnetic loop antenna by G4IRX

6 element yagi for 144 mhz - A 6 elements VHF Yagi antenna designed with YAGIMAX 3 and made by SV1XY with excellent results on local and satellites contacts like UO-14 and AO-27

UHF Yagi for AO-40 - Based on DL6UW Yagi antenna's design-formula The forward gain is 13.6 dBi (about 11.5 dBd) and it's pretty small, about 1,5 m in length

About horizontal yagi antennas - SM6EHY on horizontal yagi antenna

The humble Yagi or should that be Uda - Article about Yagi-UDA antennas

7db tape measure yagi beam for RDF - A 3 element yagi beam antenna made with a tape measure. This design exhibits a very clean pattern and is perfect for RDF use.

Vertical trapped antenna - An HF multiband trapped antenna in french

K0KP 10 Meter QRPp Beacon - At 28.2125 MHZ here's "the Little Beacon that could!" This little homebrew 500 Milliwatt QRPp beacon has been heard around the world

G4IRX Beacon Monitoring - Beacon monitoring system by G4IRX setup at IO92JV

K8UTT Ford Amateur Radio League

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

HxPI Radio - First Steps Radio - First steps in science and technology. First steps radio. Color graphics and simple explanations of basic concepts in radio. An introduction to radio communication as a technical hobby. Resources for teaching, training, learning, self-study. Modern morse code. Morse code in the 21st Century. Morse code as a technical hobby. Morse training and practice material. Exercise files to download.

About Digital Smart Technologies - A general guide to D-STAR. The purpose of D-STAR is to allow HAM Radio operators to speak further and clearer using digital voice while sending data from 1200 BPS on up at the same time.

DVX Project - Digital Voice Transceiver Project This Project began to explore the use of the DVSI AMBE 2020 voice compression chip and also the ADF7021 single chip VHF RF Transceiver from Analog Devices.

G4IRX/P portable operations - A compact and portable setup with wire dipoles by G4IRX

Radio Wiki NZ - Wiki Site dedicated to radio scanning info in New Zealand

QRO-Parts.com - Svetlana tubes also Russian capacitors,vacuum and coaxial relay, for RF Power Linear Amplifier builders. Amateur-Radio, Broadcast. Full Online Catalog.

Virtual Oscilloscope - The oscilloscope simulation shown on this website is based on the HAMEG HM203-6 20 MHz oscilloscope of Hameg GmbH in Frankfurt/Main, Germany