rf antenna

Vertical antenna for 40 and 80m - Homebrew a vertical antenna for 40 and 80 meters band based on popular HF2V model by DL7JV

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

Feeding a G5RV - Feeding a G5RV Overview by VK1OD

DF9CY - ZX15/4 extended 10/4 - A 4 element addition for 10m to an existing 4 element yagi (ZX antennas)

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

HF Hamtrader Nes - Trader net frequencies

CT2GQV homebreing blog - The Speaky HF SSB transceiver and other homebrew projects Homebrew of radio equipment, antennas, tuner, etc.

The Amateur Radio Flea Market - Treffpunkt Amateurfunk (German)

OE5OHO Oliver Huber - Contesting, CW, antennas and review on TK/OE5XVL DXpedition 1999 plus my GD/OE5OHO DXpedition in 1997.

Glen Martin Engineering, Inc.  ^pop - Glen Martin manufactures aluminum and steel amateur antenna self-supporting and telescoping towers, mounts, masts, thrust bearings and accessories.

ACOM  ^pop - ACOM international, manufacturer of HF power amplifiers, HF Antennas, Antenna tuners, Switches and Crankup masts

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

Tennadyne - Log-Periodic Antennas

Banten Antennas - Land communications and marine antennas

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.

Vectronics - Antennas, Filters, accessories, wattmeters, tuners and amplifiers.

Current Aurora status - The Aurora in near real-time from Sweden

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

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

ROHN / Radian  ^pop - Towers, poles, antenna mounts, accessories and hardware, obstruction lighting, and installation services

ASTRO RADIO - Suppliers of Amateur Radio equipment, Antennas, accesories MFJ, Ameritron, Mirage, hardware and software for digital modes.

Radioman - Freeware dos VHF/UHF Logbook morse code facility, kenwood transceivers interface, moontracking, distance and bearing calculators by DF9CY but discontinued and unsupported

Logger 32  ^pop - 32-bit Amateur Radio logging program written by Bob Furzer, K4CY the author of Zakanaka. Logger32 runs under Windows 95/98, Windows 2000, Windows ME, Windows NT and Windows XP Logger32 has been developed to be a highly user configurable general purpose Amateur Radio logbook with computer control support for many radios and antenna rotators.

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