antenna hf

15m Delta Loop - Delta Loop Antenna for 15m

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

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.

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

RoverLog - Free VHF/UHF/Microwave contest logging software for rovers and non-rovers - Runs under Linux, Windows, etc.

East Tennessee Weak Signal Association Priority listing - Dedicated to the use and advancement of amateur radio vhf/uhf weak signal communications

KC2SSB Andy - The homepage of KC2SSB with links to lots of resources including 2m and 6m FM AM SSB nets around the country.

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

VK2FLR DX Sounds Archive - Real Audio files containing interesting examples of VHF DX propagation from Sydney, Australia

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

PC-Controlled 2m Receiver - This VHF receiver(118-173MHz) is fully controlled by PC(LPT port).Receiver presents a complete dual conversion.

Digital Monitoring Site - Digital signale transmitted in HF-UHF-VHF, in italian

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

Wavelength USA - Hamsticks, mobile and base antennas

AirNav Selcal Decoder - AirNav Selcal Decoder enables you to decode in realtime Aviation HF Selcal transmissions. It only needs an HF airband receiver and your Sound Card. No special hardware needed. With AirNav Selcal Decoder you do not need any other hardware decoding system. Just your PC and the Sound Card.

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.

WINRLC - Simple freeware tool to calculate several kinds of HF filters. Use to calculate L-C and R-C band filters and bandpasses, L-C, L-R and R-C highpasses and lowpasses, coils and capacitors.

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