type of multiplexing for

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

Portable Rabbit-Ears Dipole Antenna - This handy and cheap portable dipole can be folded and backpacked, carried in use, and adjusted to a very wide range of frequencies by KV5R

Ham Radio Market - A web forum based classified ads service

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

UK DX RTTY Contest - Contest rules and results of the UK DX RTTY contest managed by SRARS

OH2GI Ham System - All-mode contesting and logging software system designed primarily for on-line operation of HF digital and CW radio stations through Terminal Node Controllers (TNC)

DXCC spreadsheet - Excel spreadsheet that helps you trace your status of DXCC entities. You only have to fill the cells with your worked and confirmed entities and the totals will be automatically updated. You don't have to make any calculation

Philippine DX Foundation, Inc. - An affiliate of the Philippine Amateur Radio Association, Inc.

Rabbit Radio Club - Headquartered in Thousand Oaks, California

AZDEN - Makes a wide range of portable and AC-powered wireless microphones

California Amplifier - manufacturer of solutions for worldwide wireless broadband communications

Shakespeare CB antennas - Shakespeare Composites & Electronics Division manufactures a complete line of unmatched CB, CB marine, and military antennas for a veriety of applications.

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.

Advanced Communication Sys - Repeaters, transmitters and receivers manufacturer for ham radio and commercial applications

Aurora current status - Current image of earth's aurora

Stanford Solar Center - Providing solar on-line activity resources for the joy of solar science exploration

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

NASA Sunspot Cycle Predictions - Nasa MSFC predictions on the behavior of current sunspot cycle.

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

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

AREPS propagation programs - Collection of various propagation software by Space and Naval Warfare Systems Center, San Diego, Atmospheric Propagation Branch

RF prop  ^pop - RF propagation software

President CB Radio Mods  ^pop Priority listing - Windows operated software and technical documentation for President CB-Radio`s

Radio Component Database Priority listing - Technical documentation for Radio Component`s