12 meter antenna

Crossed Field Antenna - The Crossed Field Antenna (CFA) is one of the applications of Correction of Maxwell's Equations which was used over 150 years ago which was proved these days that the Magnetic Field Source is only the Displacement Current not the Conduction Current . These Corrections was made by an Egyptian Doctor Engineer Fathi Kabbary , who reached the New Correct Theory which shows that the height and efficiency of the antenna doesn't depend on the wavelength

HF Copper Loop  ^pop - A small transmitting loop antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space, by Lloyd Butler VK5BR Based on material originally published in Amateur Radio, 11 1991

LA6NCA Loop antenna - Car mount magnetic loop antenna plans from 3.5 MHz to 7.5 MHz, LA6NCA, Larvik, Norway

Build A Magnetic Loop  ^pop - Documents and schema on how to build a Magnetic Loop Antenna fo 80/30 mtrs

Portable Loop Antenna  ^pop - This loop it is small and light enough to carry while operating, it disassembles into small but rugged pieces that fit easily in a backpack or gym bag, and it can be tuned from 14 MHz to 30 MHz. This tunable magnetic loop antenna is my contribution to the well established art of amateur loop making. Can be tuned from 14 MHz to 30 MHz.

2 Element Quad Project - Homebrew quad antenna project you can build for very little cost for 12,11CB,10 meters and higher frequencies

2.4G Antenna - Pictures of 2.4 Ghz antennas, JN1GKZ S-band homemade antennas

Satellite tracking antenna  ^pop - A rugged motorized satellite antenna tracking system for construction by the home handyman

Quarter Wire to Copper Tube Slim-Jim - K0GKJ project of a copper tube slim jim antenna for two meter band

Antennas : theory and designs - Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL

4X44 elements 2300 Mhz Loop Antenna - F6BON antenna 4x44 loop array in french

Phone line as a SW antenna - This article describes how to use a phone line as a shortwave receiving antenna, but be carefull telephone lines present a potential shock hazard, use at your own risk

HB0 - DXpdition 2004 - HB0 on most HF bands from 12 Sept 2004 to 19 Sept. 2004. HB0/ON7TQ and HB0/ON6UQ Qsl via home call Buro or direct.

Delboy's PMR446 Radio - Pages relate to all things PMR446, Antenna, Modifications, DX, Long Distance Contacts, Users List, Reviews

Grumpy's Communications - Dealer for Charles Gizmotchy Beam Antennas

DPD Productions - Home of the TrainTenna and MilTenna. Uniquely designed antennas for Transmit or Receive Only, Indoors and Outdoors, Railroad, Aviation, Military, Ham, MURS, GMRS, and other services.

Adventures in GPS antenna construction - Adventures in amplified GPS antenna construction; an experiment

Handling GPS Antenna - Installation guidelines for static GPS Antennas

Dominion Radio Astrophysical Observatory - operates the seven-antenna Synthesis Telescope (ST), the 26-meter Telescope, and the 10-cm Solar Flux Monitor. It is a member of the Canadian Galactic Plane Survey , a project to map 60 degrees of the Galactic plane at numerous wavelengths with a uniform sensitivity.

FT-857D Meter box - Meter and Low Power Tune for FT-857D

Bird Equipment - Bird wattmeters and extras accessories

Azimuth - The AZIMUTH program plots a world map in either azimuth (beam heading) or Mercator projections. If you specify your home location in latitude and longitude, the azimuth projection is centred on your location. The Azimuth map program can display Maidenhead grids - this is useful for 6m, 2m, and UHF DX communication display. Various features of the map are: Azimuth or Mercator projections , Maidenhead grid display, Simple map zooming, Print maps with adequate resolution up to one meter sized map

An Advanced VHF Wattmeter - A few modifications greatly increase the utility of a popular QST projec

2m Band VHF antenna pre-amplifier - Homebrew pre-amp for 144-146 MHz amateur band and OSCAR Satellites, using BF981 Dual-gate MosFet. Gain ~15 dB, NF=1dB.

144 MHz preamplifier with BF981 - Design of a preamplifier for 144 MHz with 1 dB NF and 23 dB gain using BF981. This amplifier is using a low cost silicon MOSFET (BF981 from Philips) to give more than 20 dB gain with around 1 dB noise figure on 2 meter.