dual band coaxial antenn

The TTFD-2 antenna - The lowest-cost approach for home brewing broadband, general-purpose antenna for shortwaves

Dualband-Beam 12/17 m - The beam has only one feedpoint with 50 Ohm and has an open-sleeve element for 12 m by DK7ZB

PV6 Yagi antenna - 6 elements yagi beam for 15 meters band, by T73M

Coaxial-Cable Trap Dipole  ^{updated  pop} - An Attic Coaxial-Cable trap dipole for 10, 15, 20, 30, 40, and 80 meters

Quad calculator  ^{updated  pop} - Cubical quad antenna calculator in java script

AM Antennas  ^pop - The ultimate AM loop antenna article. It is the only article that includes the calculations and detailed plans

The Carpet loop indoor antenna  ^pop - High performance indoor shortwave antenna, the Carpet Loop II is an ideal step upward for the listener who wants something better than a random wire but doesn't want the expensive dice roll of an active antenna.

Cubical Quad Antenna Design  ^pop - By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna.

CB Quad antenna  ^pop - A low-cost and easy to build Quad antenna tuned for CB band on 27 Mhz.

Inverted L antenna  ^pop - The ever-popular inverted L antnna, a fast to implement and setup shortwave antenna project by Arnie Coro C02KK

160 meter sloper antenna - The 160-meter sloper system at K3LR

1270Mhz Yagi Antenna - Build your own antenna for the 23cm band ( 1250Mhz - 1280Mc ) using some aluminium and this simple design.

Mailbox DBO274 - Citizen Band mailbox DBO274 in Germany with HTTP/telnet-access

Top Ten Devices - Automatic band decoder, six way antenna relay, band reject coaxial stubs and more

The Mud Duck SiteRing - A SiteRing for CB/Freeband/Ham radio operators.

Spi-Ro Manufacturing Inc - Transmitting & receiving multi-band antennas covering 1.8 thru 55 Mhz.

Wellbrook Communications - Broadband active loop antennas for radio amateurs and hobbyists

Palomar Engineers - RFI Kit, ferrite cores, baluns, loop antennas, antenna tuners and various accessories

Intek - CB radios, VHF transceivers, scanners antennas and accessories

Diamond Antenna  ^pop - Base station and repeater antennas, mobile antennas, ,multi-band HF antennas , handheld transceivers, receiving and scanner antennas, power meters, swr meters, power supplies, coaxial switches

I.L. Elettronica srl - Import-export telecommunication equipment Cushcraft Antenna Italian dealer, Kenwood Yaesu Icom Dealer

PolarPlot - Freeware antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating. With PolarPlot you can measure the polar diagram of the antenna and check for abnormalities - compare plots taken before and after changes to the design or location - check the -3dB beamwidth - look at the front to back ratio - see the size and position of the sidelobes.

BBA-C1 Amplifier Card - This versatile broadband amplifier is used in several DX Lab projects.

Frequency and VFO - How to keep from being out of band

Field strenght meter - Simple to build with a very clear instruction set, useful to check the radiated power of your antennas