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50 MHz Antennas by DF9CY (4 & 6 Element)  ^pop - Two well performing 50 MHz antennas designed with W7EL EZNEC along to many other antenna projects and related articles

Reflected W Beam - Hexagonal Wire Beams for 40-10m from DL7IO, different mono/multiband designs with building descriptions and model files for EZNEC

Radio Boatanchor parts - Knobs, slicers and antique radio parts for heathkit Johnson Kenwood Hallicrafters Hammarlund and many more

Romeo Fox Dx Group USA - Membership Info no cost to join

Thracian Rose Club - The Thracian Rose Club has been created in the Roses' City Kazanlak (Bulgaria) in 1993. Its main goal is to promote contacts within the radio community members (HAM, CB and SWL).

A.D.R.I. 38 - Radio-Club de Grenoble F5KGA

MARS - The Metropolitan Amateur Repeater System

QRO Technologies - HF amplifiers manufacturer

Larsen Antenna - Complete selection of portable, mobile and base station antennas in frequencies from 27 MHz to 5.8 GHz. Radiall/Larsen also has a strong presence in custom OEM development. Radiall/Larsen Antenna Technologies is a subsidiary of Radiall.

Heil Sound - Microphones, headsets and accessories

Auroral Activity - Plots showing the current extent and position of the auroral oval at each pole

Ionospheric Group - UK RCRU ionospehric group researches

Today Space Weater - Presented by the Space Environment Center with plots and images updated daily.

Sunspot answer book - Mr Sunspot's Answer Book National Solar Observatory Sacramento.

The ionosphere at VHF - Influence of the ionosphere on the EME signals by EAVQ

The Sunspot Cycle - Sunspot Numbers, The Butterfly Diagram, the Greenwich sunspot data and sunspot realted infos.

Solar Flare and sunspots - Understand the connection between solar flares and sunspots.

Latest Satellite Pictures - Visible images and loops, infra-Red images and loops, water vapor images

Weather Radio Frequencies - Weather Radio Frequencies across the U.S.

National Weather Service - Some little known facts about the NOAA Weather Radio system

Amateur Weather Satellite Imaging - Images and Radio Shack composition

Digi key - Digi-Key offers over 1,000,000 electronic components from more than 360 manufacturers.

Radio Icons - A .ico file library containing lots of icons for Windows, regarding Amateur Radio, to customize your desktop

ARMHAM-Program Map - Amateur Radio Maps program which contains maps of continents and countries.

VQLog - VQLog is a shareware log-book program for Windows specially intended for HF or VHF-DX'ers and Satellite enthusiasts, and it is fully usable for ALL amateur bands from 0 KHz to 99 GHz