us call areas

Hybrid Antennas - Antennas that use a combination of vertical and horizontal polarisation.

T2FD The Forgotten Antenna  ^pop - "Some have called the T2FD a ""squashed rhombic"" antenna. It does bear some design similarities to the non resonant rhombic, but theoretically it is admittedly inferior. However, the T2FD performs well in a modest amount of space."

Folded Dipole  ^pop - All about folded dipoles, a variation of the dipole is an antenna called a folded dipole. It radiates like a dipole but sort of looks like a squashed quad.

N. American Data Communications Museum - Telephony technology from telegraph to digital transmission

Ham Radio QSO Parties - QSO Parties held around the area. Details about making the most of the many QSO Parties. A place where planning information, operating details and technical advantages are discussed

Boxboro - Boxborough, MA USA

Amateur Radio RF Safety Calculator - This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations.

Web-controlled Shortwave Radio  ^pop - Drake R8 Communications Receiver Reston Virginia, USA

A/D Technologies - A/D Technologies is a manufacturer and service company dedicated to providing unique and valuable products and services to ourcustomers.

INRAD International Radio - Supplier of custom designed, high performance quartz crystal filters for communications receivers and transceivers, for Yaesu Icom Kenwood and Collins radios

SDR-Kits.net - USB-Controlled Synthesizer for Softrock RXTX and Local Oscillator Applications

AEA - AEA Technology Inc. is a pioneer and leading manufacturer of RF and cable test equipment for the wireless, Telco, CATV, NMR & MRI, RFID, telemetry, aviation, commercial, military, and two-way radio industries. Produces SWR Meters, Pre Amplifiers, filters, power meters and antenna testing products

Linux DStar Development - The life and times of development of a Linux D-Star repeater and dplus node.

Meteor scatter basics - Working DX on a Dead 50MHz Band using Meteor Scatter, by Palle Preben-Hansen, OZ1RH

DX Packet Cluster WebNet - Your DX Cluster Connection, infos, technical procedures, files and software

Nevada  ^updated - Nevada has been established for more than 29 years. The company has three main divisions Radio Music Publish

HF Beacon tracker - This Windows program will identify the 18 worldwide NCDXF/IARU International Beacon Stations and display each, as they become active n just 3 minutes, you will know if a band is really open

W9DMK Software - Various radio related software, including some antenna analysis, and impedance calculators.

ProsKan KA1LPA - Dual screen, supports AVT modes,16 Milions col, auto call insert facilities.

RXClus - RXCLUS is a free amateur radio software especially designed for the DX'ers and SWL's wanting to receive the informations transmitted by packet radio on the DX-cluster system. It supports also telnet protocol.

LogWindows - Log X  ^updated - Log-X formerly LogWindow is a Windows based software program designed for the specific use of Amateur Radio operators to keep a log of the contacts that were made with other radio operators around the world, designed to be used in Amateur Radio contests, Emergency situations, and for general record keeping of conversations. By SCO Inc

Super Morse  ^pop - "Super Morse is the original comprehensive Morse Code training program for the PC. Super Morse permits the user to learn the Morse characters in a very orderly way using several different methods, including one unique to Super Morse; build speed with special exercises; by WD5CID"

AR Cluster - AR-Cluster is a ham radio packet cluster software supports both node and user connections using RF and Internet. Currently available in Standard and Enterprise version.

YC156 Conversion - RF Amplifier project modified the original chassis to use a 4CX1000A instead of a YC156 triode

SWR Mega - SWR Power Meter - SWR and RF power meter for home usage, 8 different RF probes with different characteristics and power ranges by OK1DX