high voltage

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.

11el 50MHz OWA Yagi Priority listing - A real Monster true OWA for 50Mhz with real serious performance. Constant impedance, supper low SWR, high gain and F/B and easy to build.

A Mini Primer on SWR Measurements - What Does a Low or High SWR Mean? Relation between SWR and antenna efficiency by WB6FRZ

Helical Antennas - The Helical antenna description, a simple way of obtaining high-gain and a broad band of frequency characteristics

The Versatile Vee Beam - An aerial that you can use on all eight High Frequency amateur bands (80, 40, 30, 20, 17, 15, 12 and 10m) with an antenna tuner, and which gives significant gain on the five bands from 20 m to 10 m

Rhombic Antennas and Inverted V - The rhombic antenna is often claimed to be an exceptionally good antenna with very high gain. Modelling rhombic antennas

PENN-DEL Amateur Radio Club - Sponsor of KA3TWG repeaters and the Delco SKYWARN program

GB3MN and GB3VT Streams - 3.697 Mhz 80 Mtr Late Night Net[22.00gmt-05.00gmt]HF SSB. GB3VT Stoke on Trent 2 Mtr Amateur Radio Repeater 145.725Mhz[05.00gmt-22.00gmt] These streams now run back to back with high quality 64kbps aac+ and are availiable 24/7/365.

Reno and Sparks Police - Nevada - Includes Washoe County Sheriff, Nevada Highway Patrol, UNR Police Reno Police, Sparks Police

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

Eagle 1st - US made, accessories for the RF laboratory; including Return Loss Bridges, high performance coaxial cable assemblies and test filters.

The Radio Telegraphy High Speed Club - HSC Club official web page

Operating High Speed CW - K0RU article on high speed morse code

Become a high speed CW operator - How to become a High Speed CW operator, summary of information by AH6NB

High Speed CW Nets - PDF File with a list of US CW Nets dedicated to High Speed Morse Code operations

High Speed Telegraphy - High Speed CW page at wikipedia

VOACAP Online - Online professional-grade high-frequency (3-30 MHz) propagation predictions

Small Antennas for High Frequencies - This is about Small Antenna types and their properties which can help choosing proper antenna for high-frequency wireless communications as: two-way radio, microwave short links, repeaters, radio beacons or wireless telemetry

Sound Company Virginia - Sound System Alexandria, Baltimore, Maryland, Washington DC Priority listing - Sound company virginia provides audio equipments, audio tape recorder with the capability to directly record live spoken words with highest audio quality.

Radio Active Style - T-Shirts - Radio Active Style, LLC designs and produces high quality and innovative t-shirts for hams, amateur radio operators, and shortwave listeners.

JT65-HF - Download JT65-HF Amateur Radio software for reception/transmission of JT65A protocol with an emphasis upon its usage in the High Frequency Amateur Bands.

Battery voltage booster - A battery voltage booster project with pictures and schematic by KD7W

Rechargable Battery Information - All you need to know to keep your batteries fit and well!

Voltage protector/Fuse Assembly for 100-watt transceivers - A compact voltage protector/fuse assembly for 100-watt transceivers by AD5X

High Performance Software Defined Radio - The HPSDR is an open source hardware and software project intended as a next generation Software Defined Radio for use by Radio Amateurs