wide range oscillator

A 6 element OWA Yagi for 28MHz Priority listing - This is a high-gain, wideband OWA Optimised Wideband Array Yagi which covers the 10m band with an SWR of less than1.1:1 from 28-28.900MHz.

7 elements OWA Yagi for 20 meters band - Optimised Wideband Array with low SWR across the whole of 20m with excellent gain and F/B. European and USA sizes

14 el 70 MHz Low Noise LFA Yagi - This is a true monster Yagi for the 4m band which has a 50Ohm feedpoint with wide band performance yet the gain and F/B of a low impedance Yagi.

Build an All-Band Wide-Band G5RV Antenna - How to Build an All-Band Wide-Band G5RV Amateur Radio Ham Radio Antenna: Work the World of DX Radio with Low Cost - Low Profile G5RV

Helical Antennas by F5ZV - Article on Helical Antennas in french

About Log Periodic Antennas - Overview, summary, tutorial about the log periodic antenna or aerial used for wideband RF antenna applications

Five eighths wavelength vertical antenna - The basics of a five eigths wavelength vertical antenna, a form of RF antenna widely used for mobile radio communications applications

Antena gamma match - Gamma match antenna is an antenna 1/2 additional lambda with the impedance matching more flexible arrangements (var capacitor) by sliding through the gamma match/road.

VHF UHF Slim Jim Antenna - A vertical monoband antenna design that can work from 6 meters to 70 cm by F5ZV in French

Quarter wave vertical antenna - About the basics of the quarter wave vertical and ground plane antennas that ares widely used for medium wave broadcasting, mobile radio communications applications and many more.

Long Range Wi-fi Dish Antenna - Build parabolic WLAN antenna adapted from a small satellite dish. It provides high gain and long range connections.

CQ WPX Contest - Official web site of CQ World Wide WPX Contest.

Beacon Reception at PA5MW - HF beacon monitoring. Check world-wide propagation, updated every 15 minutes.

IRC's Required to return a QSL to the USA - List of World Wide conversion rates for IRC to send a QSL to USA

International 70 MHz allocations - The Four Metres website offer a global overview graph of the four meter band plans world wide

AG6AU El Dorado County Amateur Radio Club - The premier amateur radio club in El Dorado County, California representing a wide cross section of Amateur Radio Operators.

CARLA Repeater Network - C.A.R.L.A. is a growing network of repeaters providing coverage across Northern & Central California and Western Nevada. It is intended to be used as a reliable communications resource during significant local, regional and wide area incidents, and is open to all licensed amateur radio operators

WA7DG Wide Area Data Group, Inc - Serving Reno Sparks Tahoe Area, Nevada USA

NP Technologies Inc - Design, develop, test and manufacture a wide range of Amplifier products including highly linear class A Broad Band, Cell Band, Pulse, AM & FM broadcast and Military VHF

Knightlites QRP Club - The KnightLites QRP Association is a world wide fellowship of low power (QRP) amateur radio communications enthusiasts founded in 1996, and is coordinated through the efforts of a small group of radio amateurs located in the Research Triangle region of North Carolina in the United States.

Spikes CB Radios - A full service sales & repair shop, sell a wide range of cb radios, scanners, antennas, mounts, echo, noise toys and a wide range of accessories. Atkinson, IL USA

Farnell Components - Electronics components, rf connectors worldwide dealer

Vertex Standard Australia, NZ - Vertex standard has the radio communications solution you need and should demand. a global organization with over 50 years of proud history and experience our range spans the commercial, marine, airband and amateur markets.

Repeater Range Android App - M3OYQ’s Repeater Range is a free application designed to run on the Android mobile phone platform. The the app listens to the onboard GPS and displays the bundled repeater database as a simple list sorted by the range.

GU-43b Tetrode - The GU-43B tetrode is used for wideband power amplification at frequencies up to 100 MHz in RF equipment. This tube is generally considered analogous to the 4CX1000.