coax antenna traps

15m Delta Loop - Delta Loop Antenna for 15m

Slim-Jim 2m Antenna  ^pop - Drawing and assembling instruciton for Slim-Jim 2m Antenna

Quadrafilar Helix Antenna - Quadrafilar Helix antenna for 137 Mhz

Delta Loop for 50 MHz  ^pop - Delta loop and vertical antenna plans with translation in italian

50 Mhz 6 element yagi - G3PTO antenna drawing plan for a 50Mhz 6 Element Yagi

Magnetic Loop Antenna Experiments - Building a magnetic loop antenna feels more like a small plumbing project as the principle building materials consists of copper water pipe and fittings that must be soldered ("sweated") together. Full details drawing and details here.

Inexpensive GPS mobile Antenna - An inexpensive external GPS antenna, for 1.5 GHz band for GPS receiver, If you operate APRS or just need an external antenna for your GPS receiver, here’s one that is easy to build yet offers surprisingly good performance in a compact size. Best of all, it uses commonly available components and materials.

A half slooper for 160 meters - Italian article includes picturer and plans to homebrew an half-slooper antenna for 160 meters band

I5TGC Antennas - Reduced size longwave antennas by Cesare Tagliabue I5TGC and his experience on 136 kHz band.

KQ6XA Antennas and towers  ^pop - Interesting antennas pojects such as Broadband/Multiband Dipole and Tower radiating antennas for 80m and 160m, HF antenna for the micro-light backpacking enthusiast

IZ8DWG Onofrio - Includes Amplifier, antenna tuner, quad, yagi, rotators project in italian

N4UJW Ham Help Site - Learn how to be a ham. Info for becoming a ham.Antenna design and more!

Fractal Antenna Systems - Solution to your OEM needs and can meet your design or vended antenna requirements for antennas from 400MHz to 10 GHz.

ZCG Scalar - Designers and manufacturers of radio Frequency antennas. HF - 3000 MHz TET Emtron HF Yagis, Antennas for Wireless applications, Marine antennas, Land mobile, Mobile antennas.

Chelton Antennas - Makers or naval and military antennas

Directive Systems Antennas - manufacturer of VHF and microwave antennas and related products, from 50 MHz through 10 GHz

Icom AH-4 information site - A web site dedicated to the Icom AH-4 antenna tuner

Cb City - Authorized dealer for ranger magnum wilson francis k40 antennas wilson cell antennas ect.

Wavelength USA - Hamsticks, mobile and base antennas

Antenna Solver - provides much greater flexibility in the construction, analysis, and interpretation of radiating structures using a rewritten NEC module.

Smith chart - Match & display imped of antennas, can graphically visualize and compare two sets of measured impedances simultaneously.

Frees - Calculates the freespace range of a radio-link. It is useful for radio amateurs, radio engineers and for SETI signal estimations. Calulation of parabolic dish antenna-gain is included.

Duplex 144 432 - A full duplex antenna system for 144 432 Mhz

Ham Radio Circuits  ^pop - Circuits of SSB Transceiver, AM DSB Transmitter, Antennas, BFO, VFO, 807, FM Mike, Crystal filter and more.

Homebrew projects by dl5dbm  ^pop Priority listing - KW,2-meter,6-meter,antennas,amplifiers,preamps,powersupplys, and more