microstrip antenna calcu

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

Feeding a G5RV - Feeding a G5RV Overview by VK1OD

G5RV Optimization - Optimising a typical G5RV antenna by VK1OD

The Copper cactus antenna  ^pop - Copper Cactus multiband J-Pole antenna

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

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

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

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

Array Solutions - WX0B - Stacking and phasing HF and 6m arrays antenna switches and contesting devices. Custom low band antenna arrays, bandpass filters,commercial/Mil STd filters,microwave components, commercial broadcast filters.

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

Hamstick - Lakeview antennas, manufacturer of mobile antennas and accessories by WD4BUM, including colinear antennas, dual band, mounts and accessories. Maker of popular HamStick antennas.

EUR-AM - EUR-AM, cellular amateur and commercial antennas

Antennas & More  ^pop - Radio Amateur Antennas, Solar power, Antennas West products, Ham Radio gear, G5RV, Windom, Baluns, Wire, and Coax

Tennadyne - Log-Periodic Antennas

Barker & Williamson - Dipole antennas, unique broadband antennas, trap dipole antennas, coils, accessories for HF radio

Delta X-Ray Antennas - Antenna Manufacturer HF Delta Loops and VHF/UHF Ground Planes

Unadilla Antennas - The Big Signal, W2AU, W2DU, W2VS, traps InLine, Intenna, An-sulator, End-sulator, Old Reliable by Unadilla Antenna Manufacturing Co.

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

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.

Pathloss Calculation and EME - Java free space pathloss calculation and EME

EMI Calculator - Does your Amateur Radio system comply to the EMI rules ? (German values implemented)