regency range gain

The Cycloid Collinear, a CP Omni - This paper describes a wide band, high gain, multi-element cp omni with a single 50 ohm feedpoint with instructions for building a 2 and half element cycloid collinear for 2 meters.

EH antenna for 80 meters F8APF - Based on IZ5CCS design F8APF describe the homebrewing of an EH antenna for 80 meters band

OH7SV Windom baluns - Windom baluns for kilowatt range made with two ferrite toroidal cores amidon ft-140-61 and another schema with two ferrite rods

The Simple Collinear - Wherever there is a need for a vertically polarized omni-directional antenna with gain, a collinear is used. The vertically polarized collinear takes the form of two or more half waves in-line and in-phase, resulting in an omni-directional pattern with maximum radiation near the horizon.

Omni-Gain Vertical Collinear Antenna - This rugged antenna, an omnidirectional collinear, is capable of surviving harsh environments. It's a good choice for repeater installations and can be top, or side mounted to the tower by WA6SVT

40m broadband vertical antenna - A loopy loop loaded vertical antenna operating range 7.0 to 7.3 MHz by S. C. Chuck Smith, WA7RAI

KE4UYP One wavelenght loop antenna - A Loop antenna plan with a gain over one Dipole of 3DB or 5.15DBi

JJ6 Antenna - Beam antenna for 14-18-21-24-28-50 Mhz by G4ZU in french

The DK7ZB-Quadlong antenna - New type of a Quad antenna, 6.4dBd gain

BiQuad Antenna for 144/440 - This is a vertically polarized Broadside and Collinear Array each Loop is a vertically polarized Broadside Array both the right and the left side of the Loop is a bent 1/2 wave dipole working 180 degrees out of phase with the other one and that gives you 4.15dbi of gain by KE4UYP

The Eggbeater Antenna - Calculating and building an Eggbeater antenna. InstantTune and push-button Rx. Documentation available in french and english

Antenna Gain - How much gain ? This article help you on understanding how read antenna gain values in order to evaluate antenna performance

Vertical trapped antenna - An HF multiband trapped antenna in french

Selecting a WiFi antenna - What is the best WiFi antenna for me? Looking for a range extender antenna for your WiFi system. This article will help in choosing the correct antenna for your system

FM5BH shack rental - Enjoy the pile up on the other side. Very comfortable accomodation for 2 persons in Martinique

N.T.R.S. The Northern Tier Repeater System - The NTRS is an Amateur Radio Club located in North Central Pennsylvania with four repeaters

Passio Radio - Amateur radio reference site in french managed by F4EZC

Dannex - Swedish manufacturer of broadband antennas designed for multi frequency, medium and long range communication. No tuner required.

Willtek Communications - Comprehensive range of cutting-edge solutions for testing, measuring, and analysing rf networks and devices. Testers, mobile service testers, handheld spectrum analyzers

Ridge Equipment - Sells a broad range of Electronic Test Equipment as well as a full line of Cables, Connectors, Loads and Accessories for commercial or amateur antenna installation and repair.

ePartGrocer - ePartGrocer is a fully equipped on-line store providing large varieties of high quality electronic parts at bargain prices to meet the one-stop-buy requirement of our customers.

2 Element beam designer - This is a DOS program that will design a 2 element beam for a given frequency. The gain is about 6db's the front to back ratio is about 10 db's. The SWR will be about 1.8 to 1, so for transistor rigs a tuner is needed The only information required is the freq in MHZ..

LP-Rotor - LP-Rotor 2.0 is a standalone freeware rotator control program for use with Microsoft Windows. LP-Rotor should work with all versions of Windows from Windows 95 forward. It is designed to be used with the Hy-Gain DCU-1 or RotorEZ interfaces for Hy-Gain rotators, or the RotorCard interface for Yaesu rotators.

CTR-Remote - CTR-Remote is an enhanced version of CTR817 (a Pocket PC radio control program for the Yaesu FT-817). The program has been completely re-written using Microsoft Visual Studio .NET and now supports a wider range of radios, Bluetooth® wireless technology and/or TCP/IP and Wi-Fi radio control, ADIF log import and export format, custom frequency lists, DX Cluster monitoring, callsign lookup, and enhanced scanning options.

A simplified video control box - When one starts in amateur television, one begins with a small simple transmitter and a small camera. But very quickly, one needs to transmit audio signals with the pictures, then comes a second camera