us call zones

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

Marconi Museum - Wireless radios from all eras Operating ham station - W1FGM Rivals museum at ARRL Hq.

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

EB2GEV - EB2GEV personal page, in spanish

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.

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"

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